./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --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/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i', '-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', '4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b'] 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/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:14:56,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:14:56,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:14:56,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:14:56,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:14:56,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:14:56,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:14:56,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:14:56,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:14:56,466 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:14:56,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:14:56,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:14:56,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:14:56,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:14:56,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:14:56,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:14:56,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:14:56,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:14:56,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:14:56,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:14:56,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:14:56,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:14:56,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:14:56,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:14:56,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:14:56,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:14:56,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:14:56,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:14:56,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:14:56,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:14:56,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:14:56,472 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 -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-11-07 11:14:56,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:14:56,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:14:56,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:14:56,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:14:56,813 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:14:56,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:58,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:14:58,680 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:14:58,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:58,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/194387e54/3495bd04ebaa4951b89d3d7a70b632f1/FLAGf358b0cfd [2024-11-07 11:14:58,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/194387e54/3495bd04ebaa4951b89d3d7a70b632f1 [2024-11-07 11:14:58,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:14:58,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:14:58,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:14:58,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:14:58,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:14:58,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:14:58" (1/1) ... [2024-11-07 11:14:58,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f42093a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:58, skipping insertion in model container [2024-11-07 11:14:58,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:14:58" (1/1) ... [2024-11-07 11:14:58,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:14:58,954 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/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-07 11:14:59,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:14:59,173 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:14:59,184 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/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-07 11:14:59,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:14:59,264 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:14:59,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59 WrapperNode [2024-11-07 11:14:59,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:14:59,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:14:59,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:14:59,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:14:59,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,315 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-11-07 11:14:59,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:14:59,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:14:59,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:14:59,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:14:59,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,343 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 11:14:59,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:14:59,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:14:59,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:14:59,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:14:59,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (1/1) ... [2024-11-07 11:14:59,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:14:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:14:59,399 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 11:14:59,402 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 11:14:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 11:14:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 11:14:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-07 11:14:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-07 11:14:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 11:14:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:14:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:14:59,428 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 11:14:59,578 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:14:59,580 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:14:59,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:14:59,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:14:59,915 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:14:59,919 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:14:59,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:59 BoogieIcfgContainer [2024-11-07 11:14:59,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:14:59,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:14:59,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:14:59,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:14:59,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:14:58" (1/3) ... [2024-11-07 11:14:59,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:14:59, skipping insertion in model container [2024-11-07 11:14:59,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:59" (2/3) ... [2024-11-07 11:14:59,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:14:59, skipping insertion in model container [2024-11-07 11:14:59,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:59" (3/3) ... [2024-11-07 11:14:59,934 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:59,946 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:14:59,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:14:59,947 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:15:00,000 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 11:15:00,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-07 11:15:00,084 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-07 11:15:00,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:15:00,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-07 11:15:00,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-07 11:15:00,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-07 11:15:00,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:15:00,124 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;@16e755f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:15:00,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-07 11:15:00,143 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:15:00,143 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-07 11:15:00,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:15:00,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:00,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:15:00,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:00,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash -755323734, now seen corresponding path program 1 times [2024-11-07 11:15:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:00,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671026688] [2024-11-07 11:15:00,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:00,789 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 11:15:00,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:00,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671026688] [2024-11-07 11:15:00,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671026688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:00,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:00,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:15:00,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528805106] [2024-11-07 11:15:00,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:00,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:15:00,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:15:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:15:00,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-11-07 11:15:00,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 11:15:00,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:00,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-11-07 11:15:00,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:01,705 INFO L124 PetriNetUnfolderBase]: 2776/4646 cut-off events. [2024-11-07 11:15:01,706 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-07 11:15:01,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8769 conditions, 4646 events. 2776/4646 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 34401 event pairs, 1143 based on Foata normal form. 140/4728 useless extension candidates. Maximal degree in co-relation 8757. Up to 2191 conditions per place. [2024-11-07 11:15:01,754 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 6 changer transitions 37/93 dead transitions. [2024-11-07 11:15:01,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 361 flow [2024-11-07 11:15:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:15:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:15:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-11-07 11:15:01,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2024-11-07 11:15:01,774 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 219 transitions. [2024-11-07 11:15:01,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 361 flow [2024-11-07 11:15:01,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 93 transitions, 354 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 11:15:01,791 INFO L231 Difference]: Finished difference. Result has 58 places, 42 transitions, 144 flow [2024-11-07 11:15:01,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=144, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2024-11-07 11:15:01,798 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places. [2024-11-07 11:15:01,800 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 144 flow [2024-11-07 11:15:01,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 11:15:01,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:01,801 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:15:01,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:15:01,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:01,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:01,802 INFO L85 PathProgramCache]: Analyzing trace with hash -299791735, now seen corresponding path program 1 times [2024-11-07 11:15:01,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879009509] [2024-11-07 11:15:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:02,060 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 11:15:02,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:02,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879009509] [2024-11-07 11:15:02,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879009509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:02,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:02,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:02,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425491586] [2024-11-07 11:15:02,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:02,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:02,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:02,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:02,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-11-07 11:15:02,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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 11:15:02,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:02,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-11-07 11:15:02,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:02,809 INFO L124 PetriNetUnfolderBase]: 2463/4297 cut-off events. [2024-11-07 11:15:02,810 INFO L125 PetriNetUnfolderBase]: For 3601/3601 co-relation queries the response was YES. [2024-11-07 11:15:02,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11518 conditions, 4297 events. 2463/4297 cut-off events. For 3601/3601 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 32852 event pairs, 385 based on Foata normal form. 120/4376 useless extension candidates. Maximal degree in co-relation 11503. Up to 1685 conditions per place. [2024-11-07 11:15:02,862 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 41 selfloop transitions, 7 changer transitions 48/112 dead transitions. [2024-11-07 11:15:02,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 112 transitions, 634 flow [2024-11-07 11:15:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:15:02,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:15:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 296 transitions. [2024-11-07 11:15:02,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2024-11-07 11:15:02,868 INFO L175 Difference]: Start difference. First operand has 58 places, 42 transitions, 144 flow. Second operand 10 states and 296 transitions. [2024-11-07 11:15:02,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 112 transitions, 634 flow [2024-11-07 11:15:02,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 112 transitions, 604 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-07 11:15:02,894 INFO L231 Difference]: Finished difference. Result has 68 places, 44 transitions, 189 flow [2024-11-07 11:15:02,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=189, PETRI_PLACES=68, PETRI_TRANSITIONS=44} [2024-11-07 11:15:02,895 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-11-07 11:15:02,895 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 44 transitions, 189 flow [2024-11-07 11:15:02,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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 11:15:02,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:02,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:15:02,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:15:02,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:02,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1081074827, now seen corresponding path program 1 times [2024-11-07 11:15:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147007135] [2024-11-07 11:15:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:03,124 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 11:15:03,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:03,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147007135] [2024-11-07 11:15:03,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147007135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:03,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:03,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359197991] [2024-11-07 11:15:03,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:03,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:03,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:15:03,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 44 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 11:15:03,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:03,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:15:03,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:04,210 INFO L124 PetriNetUnfolderBase]: 4414/7558 cut-off events. [2024-11-07 11:15:04,211 INFO L125 PetriNetUnfolderBase]: For 14361/14381 co-relation queries the response was YES. [2024-11-07 11:15:04,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22343 conditions, 7558 events. 4414/7558 cut-off events. For 14361/14381 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 56359 event pairs, 389 based on Foata normal form. 213/7733 useless extension candidates. Maximal degree in co-relation 22321. Up to 2253 conditions per place. [2024-11-07 11:15:04,298 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 63 selfloop transitions, 23 changer transitions 82/183 dead transitions. [2024-11-07 11:15:04,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 183 transitions, 1267 flow [2024-11-07 11:15:04,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 11:15:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 11:15:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 397 transitions. [2024-11-07 11:15:04,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6786324786324787 [2024-11-07 11:15:04,303 INFO L175 Difference]: Start difference. First operand has 68 places, 44 transitions, 189 flow. Second operand 13 states and 397 transitions. [2024-11-07 11:15:04,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 183 transitions, 1267 flow [2024-11-07 11:15:04,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 183 transitions, 1155 flow, removed 36 selfloop flow, removed 6 redundant places. [2024-11-07 11:15:04,357 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 445 flow [2024-11-07 11:15:04,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=445, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2024-11-07 11:15:04,359 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2024-11-07 11:15:04,359 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 445 flow [2024-11-07 11:15:04,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 11:15:04,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:04,360 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] [2024-11-07 11:15:04,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:15:04,360 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:04,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash -459563146, now seen corresponding path program 1 times [2024-11-07 11:15:04,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:04,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269902196] [2024-11-07 11:15:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:04,554 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 11:15:04,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269902196] [2024-11-07 11:15:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269902196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:04,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500574877] [2024-11-07 11:15:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:04,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:04,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-11-07 11:15:04,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 11:15:04,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:04,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-11-07 11:15:04,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:05,449 INFO L124 PetriNetUnfolderBase]: 3434/6291 cut-off events. [2024-11-07 11:15:05,449 INFO L125 PetriNetUnfolderBase]: For 38376/38515 co-relation queries the response was YES. [2024-11-07 11:15:05,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24922 conditions, 6291 events. 3434/6291 cut-off events. For 38376/38515 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 49777 event pairs, 364 based on Foata normal form. 246/6413 useless extension candidates. Maximal degree in co-relation 24892. Up to 2462 conditions per place. [2024-11-07 11:15:05,576 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 63 selfloop transitions, 23 changer transitions 39/142 dead transitions. [2024-11-07 11:15:05,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 142 transitions, 1427 flow [2024-11-07 11:15:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:15:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:15:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2024-11-07 11:15:05,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2024-11-07 11:15:05,578 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 445 flow. Second operand 10 states and 295 transitions. [2024-11-07 11:15:05,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 142 transitions, 1427 flow [2024-11-07 11:15:05,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 1203 flow, removed 112 selfloop flow, removed 8 redundant places. [2024-11-07 11:15:05,642 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 554 flow [2024-11-07 11:15:05,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=554, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2024-11-07 11:15:05,644 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2024-11-07 11:15:05,645 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 554 flow [2024-11-07 11:15:05,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 11:15:05,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:05,645 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] [2024-11-07 11:15:05,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:15:05,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:05,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1974716180, now seen corresponding path program 1 times [2024-11-07 11:15:05,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:05,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153106518] [2024-11-07 11:15:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:05,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:05,847 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 11:15:05,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:05,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153106518] [2024-11-07 11:15:05,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153106518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:05,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:05,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:15:05,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288529085] [2024-11-07 11:15:05,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:05,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:15:05,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:15:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:15:05,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:15:05,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 554 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 11:15:05,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:05,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:15:05,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:06,986 INFO L124 PetriNetUnfolderBase]: 4477/7886 cut-off events. [2024-11-07 11:15:06,986 INFO L125 PetriNetUnfolderBase]: For 26690/26730 co-relation queries the response was YES. [2024-11-07 11:15:07,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28332 conditions, 7886 events. 4477/7886 cut-off events. For 26690/26730 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 62096 event pairs, 565 based on Foata normal form. 142/7952 useless extension candidates. Maximal degree in co-relation 28301. Up to 2136 conditions per place. [2024-11-07 11:15:07,107 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 55 selfloop transitions, 10 changer transitions 87/167 dead transitions. [2024-11-07 11:15:07,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 167 transitions, 1652 flow [2024-11-07 11:15:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 11:15:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 11:15:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2024-11-07 11:15:07,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6691358024691358 [2024-11-07 11:15:07,110 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 554 flow. Second operand 9 states and 271 transitions. [2024-11-07 11:15:07,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 167 transitions, 1652 flow [2024-11-07 11:15:07,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 167 transitions, 1587 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-11-07 11:15:07,163 INFO L231 Difference]: Finished difference. Result has 87 places, 49 transitions, 330 flow [2024-11-07 11:15:07,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=87, PETRI_TRANSITIONS=49} [2024-11-07 11:15:07,164 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 36 predicate places. [2024-11-07 11:15:07,164 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 49 transitions, 330 flow [2024-11-07 11:15:07,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 11:15:07,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:07,165 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] [2024-11-07 11:15:07,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:15:07,165 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:07,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2083030783, now seen corresponding path program 1 times [2024-11-07 11:15:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:07,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403383360] [2024-11-07 11:15:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:07,347 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 11:15:07,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:07,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403383360] [2024-11-07 11:15:07,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403383360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:07,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:07,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:15:07,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142305726] [2024-11-07 11:15:07,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:07,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:15:07,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:07,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:15:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:15:07,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-11-07 11:15:07,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 49 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 11:15:07,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:07,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-11-07 11:15:07,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:07,679 INFO L124 PetriNetUnfolderBase]: 1355/2638 cut-off events. [2024-11-07 11:15:07,680 INFO L125 PetriNetUnfolderBase]: For 8797/8932 co-relation queries the response was YES. [2024-11-07 11:15:07,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8992 conditions, 2638 events. 1355/2638 cut-off events. For 8797/8932 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 19031 event pairs, 615 based on Foata normal form. 78/2526 useless extension candidates. Maximal degree in co-relation 8957. Up to 1337 conditions per place. [2024-11-07 11:15:07,718 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 27 selfloop transitions, 5 changer transitions 21/81 dead transitions. [2024-11-07 11:15:07,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 81 transitions, 582 flow [2024-11-07 11:15:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:15:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:15:07,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-11-07 11:15:07,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2024-11-07 11:15:07,720 INFO L175 Difference]: Start difference. First operand has 87 places, 49 transitions, 330 flow. Second operand 7 states and 218 transitions. [2024-11-07 11:15:07,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 81 transitions, 582 flow [2024-11-07 11:15:07,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 422 flow, removed 39 selfloop flow, removed 19 redundant places. [2024-11-07 11:15:07,738 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 239 flow [2024-11-07 11:15:07,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-07 11:15:07,740 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-07 11:15:07,740 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 239 flow [2024-11-07 11:15:07,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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 11:15:07,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:07,741 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] [2024-11-07 11:15:07,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:15:07,741 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:07,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash 653172190, now seen corresponding path program 1 times [2024-11-07 11:15:07,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:07,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668713509] [2024-11-07 11:15:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:07,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:07,891 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 11:15:07,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:07,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668713509] [2024-11-07 11:15:07,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668713509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:07,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:07,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:15:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917078841] [2024-11-07 11:15:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:07,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:07,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:07,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-11-07 11:15:07,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 11:15:07,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:07,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-11-07 11:15:07,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:08,339 INFO L124 PetriNetUnfolderBase]: 2050/3757 cut-off events. [2024-11-07 11:15:08,339 INFO L125 PetriNetUnfolderBase]: For 4644/4674 co-relation queries the response was YES. [2024-11-07 11:15:08,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10607 conditions, 3757 events. 2050/3757 cut-off events. For 4644/4674 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 27846 event pairs, 538 based on Foata normal form. 60/3728 useless extension candidates. Maximal degree in co-relation 10583. Up to 1342 conditions per place. [2024-11-07 11:15:08,363 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 42 selfloop transitions, 10 changer transitions 25/94 dead transitions. [2024-11-07 11:15:08,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 569 flow [2024-11-07 11:15:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 11:15:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 11:15:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 234 transitions. [2024-11-07 11:15:08,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-07 11:15:08,366 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 239 flow. Second operand 8 states and 234 transitions. [2024-11-07 11:15:08,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 569 flow [2024-11-07 11:15:08,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 535 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-07 11:15:08,379 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 255 flow [2024-11-07 11:15:08,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=255, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2024-11-07 11:15:08,381 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-11-07 11:15:08,382 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 255 flow [2024-11-07 11:15:08,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 11:15:08,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:08,383 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] [2024-11-07 11:15:08,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:15:08,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:08,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash -661292864, now seen corresponding path program 1 times [2024-11-07 11:15:08,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:08,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910545909] [2024-11-07 11:15:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:08,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:08,528 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 11:15:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:08,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910545909] [2024-11-07 11:15:08,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910545909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:08,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:08,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:08,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609611705] [2024-11-07 11:15:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:08,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:08,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:08,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 45 [2024-11-07 11:15:08,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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 11:15:08,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:08,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 45 [2024-11-07 11:15:08,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:08,898 INFO L124 PetriNetUnfolderBase]: 2185/4193 cut-off events. [2024-11-07 11:15:08,898 INFO L125 PetriNetUnfolderBase]: For 7177/7419 co-relation queries the response was YES. [2024-11-07 11:15:08,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11364 conditions, 4193 events. 2185/4193 cut-off events. For 7177/7419 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 33291 event pairs, 730 based on Foata normal form. 96/4100 useless extension candidates. Maximal degree in co-relation 11339. Up to 1446 conditions per place. [2024-11-07 11:15:08,928 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 31 selfloop transitions, 7 changer transitions 19/78 dead transitions. [2024-11-07 11:15:08,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 489 flow [2024-11-07 11:15:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:15:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:15:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2024-11-07 11:15:08,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2024-11-07 11:15:08,930 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 255 flow. Second operand 6 states and 184 transitions. [2024-11-07 11:15:08,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 489 flow [2024-11-07 11:15:08,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 78 transitions, 451 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-07 11:15:08,941 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 241 flow [2024-11-07 11:15:08,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2024-11-07 11:15:08,941 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-07 11:15:08,942 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 241 flow [2024-11-07 11:15:08,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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 11:15:08,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:08,942 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] [2024-11-07 11:15:08,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:15:08,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:08,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:08,943 INFO L85 PathProgramCache]: Analyzing trace with hash 453713548, now seen corresponding path program 2 times [2024-11-07 11:15:08,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:08,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32569056] [2024-11-07 11:15:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:08,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:09,033 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 11:15:09,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:09,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32569056] [2024-11-07 11:15:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32569056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:09,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:09,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:15:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377521025] [2024-11-07 11:15:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:09,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:15:09,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:15:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:15:09,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:15:09,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 11:15:09,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:09,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:15:09,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:09,486 INFO L124 PetriNetUnfolderBase]: 4407/7444 cut-off events. [2024-11-07 11:15:09,487 INFO L125 PetriNetUnfolderBase]: For 3890/4222 co-relation queries the response was YES. [2024-11-07 11:15:09,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16153 conditions, 7444 events. 4407/7444 cut-off events. For 3890/4222 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 56295 event pairs, 1368 based on Foata normal form. 331/7436 useless extension candidates. Maximal degree in co-relation 16129. Up to 3405 conditions per place. [2024-11-07 11:15:09,551 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 32 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-11-07 11:15:09,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 65 transitions, 357 flow [2024-11-07 11:15:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:15:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:15:09,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-07 11:15:09,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-07 11:15:09,554 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 241 flow. Second operand 4 states and 132 transitions. [2024-11-07 11:15:09,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 65 transitions, 357 flow [2024-11-07 11:15:09,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 326 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 11:15:09,582 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 256 flow [2024-11-07 11:15:09,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2024-11-07 11:15:09,583 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-11-07 11:15:09,584 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 256 flow [2024-11-07 11:15:09,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 11:15:09,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:09,584 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] [2024-11-07 11:15:09,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 11:15:09,584 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:09,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -9488843, now seen corresponding path program 1 times [2024-11-07 11:15:09,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:09,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13687524] [2024-11-07 11:15:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:09,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:09,705 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 11:15:09,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:09,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13687524] [2024-11-07 11:15:09,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13687524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:09,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:09,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:15:09,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359643339] [2024-11-07 11:15:09,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:09,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:15:09,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:09,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:15:09,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:15:09,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:15:09,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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 11:15:09,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:09,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:15:09,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:10,326 INFO L124 PetriNetUnfolderBase]: 4340/7275 cut-off events. [2024-11-07 11:15:10,326 INFO L125 PetriNetUnfolderBase]: For 3728/5456 co-relation queries the response was YES. [2024-11-07 11:15:10,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18508 conditions, 7275 events. 4340/7275 cut-off events. For 3728/5456 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 52747 event pairs, 727 based on Foata normal form. 343/7309 useless extension candidates. Maximal degree in co-relation 18486. Up to 3412 conditions per place. [2024-11-07 11:15:10,377 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 40 selfloop transitions, 10 changer transitions 0/77 dead transitions. [2024-11-07 11:15:10,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 77 transitions, 431 flow [2024-11-07 11:15:10,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:15:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:15:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-07 11:15:10,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2024-11-07 11:15:10,380 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 256 flow. Second operand 5 states and 167 transitions. [2024-11-07 11:15:10,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 77 transitions, 431 flow [2024-11-07 11:15:10,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 11:15:10,384 INFO L231 Difference]: Finished difference. Result has 73 places, 57 transitions, 321 flow [2024-11-07 11:15:10,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=73, PETRI_TRANSITIONS=57} [2024-11-07 11:15:10,385 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-11-07 11:15:10,387 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 321 flow [2024-11-07 11:15:10,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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 11:15:10,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:10,388 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] [2024-11-07 11:15:10,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 11:15:10,388 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:10,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash 388334536, now seen corresponding path program 1 times [2024-11-07 11:15:10,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:10,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308045941] [2024-11-07 11:15:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:10,509 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 11:15:10,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308045941] [2024-11-07 11:15:10,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308045941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:10,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:10,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:10,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407313164] [2024-11-07 11:15:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:10,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:10,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:10,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:15:10,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 321 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 11:15:10,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:10,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:15:10,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:11,057 INFO L124 PetriNetUnfolderBase]: 3828/6243 cut-off events. [2024-11-07 11:15:11,057 INFO L125 PetriNetUnfolderBase]: For 8081/11784 co-relation queries the response was YES. [2024-11-07 11:15:11,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18960 conditions, 6243 events. 3828/6243 cut-off events. For 8081/11784 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 42109 event pairs, 225 based on Foata normal form. 326/6316 useless extension candidates. Maximal degree in co-relation 18935. Up to 2992 conditions per place. [2024-11-07 11:15:11,095 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 48 selfloop transitions, 14 changer transitions 0/89 dead transitions. [2024-11-07 11:15:11,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 554 flow [2024-11-07 11:15:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:15:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:15:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-11-07 11:15:11,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-07 11:15:11,096 INFO L175 Difference]: Start difference. First operand has 73 places, 57 transitions, 321 flow. Second operand 6 states and 202 transitions. [2024-11-07 11:15:11,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 554 flow [2024-11-07 11:15:11,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 538 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-07 11:15:11,101 INFO L231 Difference]: Finished difference. Result has 78 places, 62 transitions, 391 flow [2024-11-07 11:15:11,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=391, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2024-11-07 11:15:11,102 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 27 predicate places. [2024-11-07 11:15:11,102 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 391 flow [2024-11-07 11:15:11,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 11:15:11,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:11,102 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] [2024-11-07 11:15:11,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 11:15:11,102 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:11,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash -226380468, now seen corresponding path program 1 times [2024-11-07 11:15:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199233432] [2024-11-07 11:15:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:11,228 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 11:15:11,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:11,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199233432] [2024-11-07 11:15:11,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199233432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:11,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:11,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:15:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412564790] [2024-11-07 11:15:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:11,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:15:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:15:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:15:11,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:15:11,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 391 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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 11:15:11,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:11,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:15:11,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:11,800 INFO L124 PetriNetUnfolderBase]: 3400/5343 cut-off events. [2024-11-07 11:15:11,801 INFO L125 PetriNetUnfolderBase]: For 14514/17669 co-relation queries the response was YES. [2024-11-07 11:15:11,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19047 conditions, 5343 events. 3400/5343 cut-off events. For 14514/17669 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 33958 event pairs, 125 based on Foata normal form. 235/5341 useless extension candidates. Maximal degree in co-relation 19020. Up to 2284 conditions per place. [2024-11-07 11:15:11,830 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 46 selfloop transitions, 18 changer transitions 0/91 dead transitions. [2024-11-07 11:15:11,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 592 flow [2024-11-07 11:15:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:15:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:15:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-07 11:15:11,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2024-11-07 11:15:11,832 INFO L175 Difference]: Start difference. First operand has 78 places, 62 transitions, 391 flow. Second operand 7 states and 227 transitions. [2024-11-07 11:15:11,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 592 flow [2024-11-07 11:15:11,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 91 transitions, 546 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-07 11:15:11,848 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 409 flow [2024-11-07 11:15:11,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=409, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-07 11:15:11,849 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 30 predicate places. [2024-11-07 11:15:11,849 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 409 flow [2024-11-07 11:15:11,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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 11:15:11,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:11,850 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] [2024-11-07 11:15:11,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 11:15:11,850 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:11,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1456105085, now seen corresponding path program 1 times [2024-11-07 11:15:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604381406] [2024-11-07 11:15:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:11,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:11,976 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 11:15:11,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:11,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604381406] [2024-11-07 11:15:11,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604381406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:11,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:11,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:15:11,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497607076] [2024-11-07 11:15:11,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:11,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:11,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:11,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:11,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:15:11,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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 11:15:11,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:11,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:15:11,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:12,427 INFO L124 PetriNetUnfolderBase]: 2331/4588 cut-off events. [2024-11-07 11:15:12,427 INFO L125 PetriNetUnfolderBase]: For 10856/12140 co-relation queries the response was YES. [2024-11-07 11:15:12,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14526 conditions, 4588 events. 2331/4588 cut-off events. For 10856/12140 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 38279 event pairs, 423 based on Foata normal form. 94/4052 useless extension candidates. Maximal degree in co-relation 14499. Up to 1792 conditions per place. [2024-11-07 11:15:12,459 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2024-11-07 11:15:12,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 569 flow [2024-11-07 11:15:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:15:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:15:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-11-07 11:15:12,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6703703703703704 [2024-11-07 11:15:12,461 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 409 flow. Second operand 6 states and 181 transitions. [2024-11-07 11:15:12,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 569 flow [2024-11-07 11:15:12,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 502 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-07 11:15:12,511 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-11-07 11:15:12,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-11-07 11:15:12,512 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 27 predicate places. [2024-11-07 11:15:12,513 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-11-07 11:15:12,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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 11:15:12,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-07 11:15:12,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-07 11:15:12,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-07 11:15:12,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-07 11:15:12,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-07 11:15:12,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 11:15:12,518 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:15:12,521 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:15:12,522 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:15:12,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:15:12 BasicIcfg [2024-11-07 11:15:12,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:15:12,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:15:12,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:15:12,528 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:15:12,532 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:59" (3/4) ... [2024-11-07 11:15:12,534 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:15:12,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-07 11:15:12,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-07 11:15:12,538 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-07 11:15:12,538 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-07 11:15:12,542 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-11-07 11:15:12,542 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-07 11:15:12,543 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 11:15:12,543 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 11:15:12,613 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:15:12,614 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:15:12,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:15:12,615 INFO L158 Benchmark]: Toolchain (without parser) took 13885.72ms. Allocated memory was 100.7MB in the beginning and 310.4MB in the end (delta: 209.7MB). Free memory was 75.1MB in the beginning and 81.7MB in the end (delta: -6.6MB). Peak memory consumption was 204.5MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,615 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:12,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.69ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 54.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.05ms. Allocated memory is still 100.7MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,616 INFO L158 Benchmark]: Boogie Preprocessor took 38.69ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 51.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:12,617 INFO L158 Benchmark]: RCFGBuilder took 564.30ms. Allocated memory is still 100.7MB. Free memory was 51.3MB in the beginning and 70.9MB in the end (delta: -19.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,617 INFO L158 Benchmark]: TraceAbstraction took 12604.91ms. Allocated memory was 100.7MB in the beginning and 310.4MB in the end (delta: 209.7MB). Free memory was 70.4MB in the beginning and 86.7MB in the end (delta: -16.3MB). Peak memory consumption was 192.4MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,618 INFO L158 Benchmark]: Witness Printer took 85.67ms. Allocated memory is still 310.4MB. Free memory was 86.7MB in the beginning and 81.7MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:15:12,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.69ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 54.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.05ms. Allocated memory is still 100.7MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.69ms. Allocated memory is still 100.7MB. Free memory was 53.0MB in the beginning and 51.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 564.30ms. Allocated memory is still 100.7MB. Free memory was 51.3MB in the beginning and 70.9MB in the end (delta: -19.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12604.91ms. Allocated memory was 100.7MB in the beginning and 310.4MB in the end (delta: 209.7MB). Free memory was 70.4MB in the beginning and 86.7MB in the end (delta: -16.3MB). Peak memory consumption was 192.4MB. Max. memory is 16.1GB. * Witness Printer took 85.67ms. Allocated memory is still 310.4MB. Free memory was 86.7MB in the beginning and 81.7MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 9 procedures, 75 locations, 5 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: 12.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 811 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 743 mSDsluCounter, 368 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1500 IncrementalHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 109 mSDtfsCounter, 1500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=4, InterpolantAutomatonStates: 98, 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, 2.2s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 1151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 11:15:12,648 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