./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX --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 8dbd267b0e0821e8d358e8d234024d8e484ea32431972ed8b70b87052179a50c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:43:25,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:43:26,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:43:26,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:43:26,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:43:26,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:43:26,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:43:26,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:43:26,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:43:26,063 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:43:26,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:43:26,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:43:26,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:43:26,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:43:26,065 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:43:26,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:43:26,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:43:26,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:43:26,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:43:26,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:43:26,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:43:26,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:43:26,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:43:26,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:43:26,075 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:43:26,075 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:43:26,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:43:26,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:43:26,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:43:26,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:43:26,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:43:26,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:43:26,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:43:26,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:43:26,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:43:26,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:43:26,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:43:26,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:43:26,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:43:26,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:43:26,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:43:26,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:43:26,081 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dbd267b0e0821e8d358e8d234024d8e484ea32431972ed8b70b87052179a50c [2024-11-08 18:43:26,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:43:26,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:43:26,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:43:26,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:43:26,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:43:26,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c Unable to find full path for "g++" [2024-11-08 18:43:28,461 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:43:28,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:43:28,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2024-11-08 18:43:28,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/f2e3d44c4/627f4f5be111432e944580d73b5d1f72/FLAGcd59ac214 [2024-11-08 18:43:28,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/f2e3d44c4/627f4f5be111432e944580d73b5d1f72 [2024-11-08 18:43:28,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:43:28,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:43:28,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:43:28,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:43:28,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:43:28,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:43:28" (1/1) ... [2024-11-08 18:43:28,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c529ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:28, skipping insertion in model container [2024-11-08 18:43:28,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:43:28" (1/1) ... [2024-11-08 18:43:28,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:43:29,270 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4403,4416] [2024-11-08 18:43:29,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:43:29,310 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:43:29,350 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4403,4416] [2024-11-08 18:43:29,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:43:29,375 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:43:29,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29 WrapperNode [2024-11-08 18:43:29,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:43:29,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:43:29,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:43:29,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:43:29,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,449 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 333 [2024-11-08 18:43:29,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:43:29,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:43:29,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:43:29,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:43:29,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,492 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-08 18:43:29,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:43:29,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:43:29,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:43:29,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:43:29,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (1/1) ... [2024-11-08 18:43:29,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:43:29,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:29,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:43:29,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:43:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:43:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:43:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:43:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:43:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:43:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:43:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:43:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:43:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:43:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:43:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:43:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 18:43:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 18:43:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:43:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:43:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 18:43:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 18:43:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:43:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:43:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:43:29,618 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:43:29,778 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:43:29,782 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:43:30,498 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:43:30,499 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:43:31,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:43:31,127 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:43:31,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:43:31 BoogieIcfgContainer [2024-11-08 18:43:31,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:43:31,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:43:31,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:43:31,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:43:31,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:43:28" (1/3) ... [2024-11-08 18:43:31,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23993eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:43:31, skipping insertion in model container [2024-11-08 18:43:31,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:43:29" (2/3) ... [2024-11-08 18:43:31,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23993eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:43:31, skipping insertion in model container [2024-11-08 18:43:31,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:43:31" (3/3) ... [2024-11-08 18:43:31,144 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2024-11-08 18:43:31,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:43:31,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:43:31,168 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:43:31,272 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 18:43:31,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 174 flow [2024-11-08 18:43:31,363 INFO L124 PetriNetUnfolderBase]: 14/69 cut-off events. [2024-11-08 18:43:31,364 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:43:31,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 14/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-08 18:43:31,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 73 transitions, 174 flow [2024-11-08 18:43:31,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 160 flow [2024-11-08 18:43:31,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:43:31,390 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;@56d7cb9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:43:31,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 18:43:31,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:43:31,421 INFO L124 PetriNetUnfolderBase]: 14/67 cut-off events. [2024-11-08 18:43:31,421 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:43:31,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:31,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:31,424 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)] === [2024-11-08 18:43:31,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1792758193, now seen corresponding path program 1 times [2024-11-08 18:43:31,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:31,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348291778] [2024-11-08 18:43:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:31,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348291778] [2024-11-08 18:43:32,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348291778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:32,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:32,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:43:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204757737] [2024-11-08 18:43:32,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:32,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:32,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:32,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:32,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:32,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 73 [2024-11-08 18:43:32,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-08 18:43:32,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:32,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 73 [2024-11-08 18:43:32,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:33,272 INFO L124 PetriNetUnfolderBase]: 2744/4738 cut-off events. [2024-11-08 18:43:33,273 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-08 18:43:33,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8009 conditions, 4738 events. 2744/4738 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 31849 event pairs, 472 based on Foata normal form. 1/3770 useless extension candidates. Maximal degree in co-relation 7230. Up to 2067 conditions per place. [2024-11-08 18:43:33,355 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 43 selfloop transitions, 3 changer transitions 1/85 dead transitions. [2024-11-08 18:43:33,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 85 transitions, 303 flow [2024-11-08 18:43:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:43:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-11-08 18:43:33,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7945205479452054 [2024-11-08 18:43:33,377 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 160 flow. Second operand 3 states and 174 transitions. [2024-11-08 18:43:33,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 85 transitions, 303 flow [2024-11-08 18:43:33,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 277 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-08 18:43:33,399 INFO L231 Difference]: Finished difference. Result has 62 places, 70 transitions, 163 flow [2024-11-08 18:43:33,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=62, PETRI_TRANSITIONS=70} [2024-11-08 18:43:33,408 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, -5 predicate places. [2024-11-08 18:43:33,409 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 70 transitions, 163 flow [2024-11-08 18:43:33,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-08 18:43:33,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:33,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:33,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:43:33,412 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)] === [2024-11-08 18:43:33,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:33,415 INFO L85 PathProgramCache]: Analyzing trace with hash 788215955, now seen corresponding path program 1 times [2024-11-08 18:43:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:33,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012048189] [2024-11-08 18:43:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:33,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:33,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012048189] [2024-11-08 18:43:33,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012048189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:33,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:33,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:43:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471935730] [2024-11-08 18:43:33,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:33,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:33,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:33,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 73 [2024-11-08 18:43:33,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2024-11-08 18:43:33,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:33,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 73 [2024-11-08 18:43:33,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:34,563 INFO L124 PetriNetUnfolderBase]: 2655/4413 cut-off events. [2024-11-08 18:43:34,563 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-08 18:43:34,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8346 conditions, 4413 events. 2655/4413 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 28442 event pairs, 549 based on Foata normal form. 71/3751 useless extension candidates. Maximal degree in co-relation 2973. Up to 2321 conditions per place. [2024-11-08 18:43:34,685 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 51 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-11-08 18:43:34,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 91 transitions, 325 flow [2024-11-08 18:43:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:43:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-11-08 18:43:34,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8082191780821918 [2024-11-08 18:43:34,691 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 163 flow. Second operand 3 states and 177 transitions. [2024-11-08 18:43:34,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 91 transitions, 325 flow [2024-11-08 18:43:34,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:34,695 INFO L231 Difference]: Finished difference. Result has 64 places, 71 transitions, 174 flow [2024-11-08 18:43:34,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=64, PETRI_TRANSITIONS=71} [2024-11-08 18:43:34,697 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, -3 predicate places. [2024-11-08 18:43:34,697 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 71 transitions, 174 flow [2024-11-08 18:43:34,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2024-11-08 18:43:34,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:34,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:34,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:43:34,699 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)] === [2024-11-08 18:43:34,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1232238227, now seen corresponding path program 1 times [2024-11-08 18:43:34,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:34,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332267427] [2024-11-08 18:43:34,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:34,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:34,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332267427] [2024-11-08 18:43:34,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332267427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:34,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:34,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:43:34,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111367514] [2024-11-08 18:43:34,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:34,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:34,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:34,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 73 [2024-11-08 18:43:34,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 71 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2024-11-08 18:43:34,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:34,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 73 [2024-11-08 18:43:34,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:35,970 INFO L124 PetriNetUnfolderBase]: 2639/4571 cut-off events. [2024-11-08 18:43:35,970 INFO L125 PetriNetUnfolderBase]: For 1393/1393 co-relation queries the response was YES. [2024-11-08 18:43:35,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8979 conditions, 4571 events. 2639/4571 cut-off events. For 1393/1393 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 30707 event pairs, 571 based on Foata normal form. 38/3860 useless extension candidates. Maximal degree in co-relation 6544. Up to 2334 conditions per place. [2024-11-08 18:43:36,020 INFO L140 encePairwiseOnDemand]: 70/73 looper letters, 51 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-11-08 18:43:36,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 341 flow [2024-11-08 18:43:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:43:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-11-08 18:43:36,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7990867579908676 [2024-11-08 18:43:36,028 INFO L175 Difference]: Start difference. First operand has 64 places, 71 transitions, 174 flow. Second operand 3 states and 175 transitions. [2024-11-08 18:43:36,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 341 flow [2024-11-08 18:43:36,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:36,031 INFO L231 Difference]: Finished difference. Result has 66 places, 72 transitions, 186 flow [2024-11-08 18:43:36,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=66, PETRI_TRANSITIONS=72} [2024-11-08 18:43:36,034 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-11-08 18:43:36,035 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 72 transitions, 186 flow [2024-11-08 18:43:36,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 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) [2024-11-08 18:43:36,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:36,036 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:36,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:43:36,036 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)] === [2024-11-08 18:43:36,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:36,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2057293505, now seen corresponding path program 1 times [2024-11-08 18:43:36,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:36,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292685940] [2024-11-08 18:43:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:36,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:43:36,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292685940] [2024-11-08 18:43:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292685940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:36,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:43:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067903749] [2024-11-08 18:43:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:36,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:43:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:43:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:43:36,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 18:43:36,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 72 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:43:36,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:36,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 18:43:36,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:37,317 INFO L124 PetriNetUnfolderBase]: 3123/5554 cut-off events. [2024-11-08 18:43:37,318 INFO L125 PetriNetUnfolderBase]: For 2314/2314 co-relation queries the response was YES. [2024-11-08 18:43:37,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11381 conditions, 5554 events. 3123/5554 cut-off events. For 2314/2314 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 41630 event pairs, 2081 based on Foata normal form. 92/4424 useless extension candidates. Maximal degree in co-relation 5414. Up to 3085 conditions per place. [2024-11-08 18:43:37,386 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 74 selfloop transitions, 8 changer transitions 0/114 dead transitions. [2024-11-08 18:43:37,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 114 transitions, 457 flow [2024-11-08 18:43:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:43:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 257 transitions. [2024-11-08 18:43:37,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7041095890410959 [2024-11-08 18:43:37,391 INFO L175 Difference]: Start difference. First operand has 66 places, 72 transitions, 186 flow. Second operand 5 states and 257 transitions. [2024-11-08 18:43:37,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 114 transitions, 457 flow [2024-11-08 18:43:37,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 114 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:37,398 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 244 flow [2024-11-08 18:43:37,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2024-11-08 18:43:37,400 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 5 predicate places. [2024-11-08 18:43:37,401 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 244 flow [2024-11-08 18:43:37,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:43:37,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:37,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:37,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:43:37,402 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)] === [2024-11-08 18:43:37,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 144746001, now seen corresponding path program 1 times [2024-11-08 18:43:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:37,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673215281] [2024-11-08 18:43:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:37,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:43:37,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:37,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673215281] [2024-11-08 18:43:37,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673215281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:37,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:37,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:43:37,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490434075] [2024-11-08 18:43:37,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:37,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:43:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:43:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:43:37,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 18:43:37,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:43:37,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:37,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 18:43:37,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:38,977 INFO L124 PetriNetUnfolderBase]: 3914/7231 cut-off events. [2024-11-08 18:43:38,977 INFO L125 PetriNetUnfolderBase]: For 2989/2989 co-relation queries the response was YES. [2024-11-08 18:43:39,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14414 conditions, 7231 events. 3914/7231 cut-off events. For 2989/2989 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 58334 event pairs, 2645 based on Foata normal form. 132/5806 useless extension candidates. Maximal degree in co-relation 11720. Up to 3861 conditions per place. [2024-11-08 18:43:39,081 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 74 selfloop transitions, 7 changer transitions 2/115 dead transitions. [2024-11-08 18:43:39,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 115 transitions, 526 flow [2024-11-08 18:43:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:43:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 249 transitions. [2024-11-08 18:43:39,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6821917808219178 [2024-11-08 18:43:39,084 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 244 flow. Second operand 5 states and 249 transitions. [2024-11-08 18:43:39,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 115 transitions, 526 flow [2024-11-08 18:43:39,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 115 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:39,093 INFO L231 Difference]: Finished difference. Result has 78 places, 84 transitions, 299 flow [2024-11-08 18:43:39,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=78, PETRI_TRANSITIONS=84} [2024-11-08 18:43:39,094 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2024-11-08 18:43:39,094 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 84 transitions, 299 flow [2024-11-08 18:43:39,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:43:39,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:39,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:39,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:43:39,096 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)] === [2024-11-08 18:43:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 551789775, now seen corresponding path program 1 times [2024-11-08 18:43:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293334884] [2024-11-08 18:43:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:43:39,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:39,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293334884] [2024-11-08 18:43:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293334884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:39,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531057367] [2024-11-08 18:43:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:39,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:39,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:39,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-08 18:43:39,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 84 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 6 states have internal predecessors, (224), 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) [2024-11-08 18:43:39,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:39,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-08 18:43:39,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:42,599 INFO L124 PetriNetUnfolderBase]: 10285/16841 cut-off events. [2024-11-08 18:43:42,600 INFO L125 PetriNetUnfolderBase]: For 6598/6622 co-relation queries the response was YES. [2024-11-08 18:43:42,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35467 conditions, 16841 events. 10285/16841 cut-off events. For 6598/6622 co-relation queries the response was YES. Maximal size of possible extension queue 866. Compared 133824 event pairs, 3828 based on Foata normal form. 222/14856 useless extension candidates. Maximal degree in co-relation 26926. Up to 5533 conditions per place. [2024-11-08 18:43:42,953 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 111 selfloop transitions, 12 changer transitions 1/152 dead transitions. [2024-11-08 18:43:42,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 152 transitions, 763 flow [2024-11-08 18:43:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:43:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:43:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 327 transitions. [2024-11-08 18:43:42,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.639921722113503 [2024-11-08 18:43:42,957 INFO L175 Difference]: Start difference. First operand has 78 places, 84 transitions, 299 flow. Second operand 7 states and 327 transitions. [2024-11-08 18:43:42,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 152 transitions, 763 flow [2024-11-08 18:43:42,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 152 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:42,967 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 368 flow [2024-11-08 18:43:42,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=368, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-11-08 18:43:42,969 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 21 predicate places. [2024-11-08 18:43:42,969 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 368 flow [2024-11-08 18:43:42,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 6 states have internal predecessors, (224), 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) [2024-11-08 18:43:42,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:42,970 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:42,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:43:42,971 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)] === [2024-11-08 18:43:42,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2144702224, now seen corresponding path program 1 times [2024-11-08 18:43:42,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:42,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295463951] [2024-11-08 18:43:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:42,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:43:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:43,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295463951] [2024-11-08 18:43:43,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295463951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:43,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:43,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:43,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572953985] [2024-11-08 18:43:43,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:43,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:43,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:43,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:43,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-08 18:43:43,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 6 states have internal predecessors, (224), 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) [2024-11-08 18:43:43,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:43,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-08 18:43:43,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:46,585 INFO L124 PetriNetUnfolderBase]: 11104/17045 cut-off events. [2024-11-08 18:43:46,585 INFO L125 PetriNetUnfolderBase]: For 8309/8549 co-relation queries the response was YES. [2024-11-08 18:43:46,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38909 conditions, 17045 events. 11104/17045 cut-off events. For 8309/8549 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 126174 event pairs, 4131 based on Foata normal form. 64/15462 useless extension candidates. Maximal degree in co-relation 33800. Up to 7045 conditions per place. [2024-11-08 18:43:46,819 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 74 selfloop transitions, 7 changer transitions 31/140 dead transitions. [2024-11-08 18:43:46,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 140 transitions, 738 flow [2024-11-08 18:43:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:43:46,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:43:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 317 transitions. [2024-11-08 18:43:46,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6203522504892368 [2024-11-08 18:43:46,822 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 368 flow. Second operand 7 states and 317 transitions. [2024-11-08 18:43:46,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 140 transitions, 738 flow [2024-11-08 18:43:46,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 140 transitions, 735 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:46,831 INFO L231 Difference]: Finished difference. Result has 96 places, 85 transitions, 355 flow [2024-11-08 18:43:46,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=355, PETRI_PLACES=96, PETRI_TRANSITIONS=85} [2024-11-08 18:43:46,832 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 29 predicate places. [2024-11-08 18:43:46,833 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 85 transitions, 355 flow [2024-11-08 18:43:46,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 6 states have internal predecessors, (224), 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) [2024-11-08 18:43:46,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:46,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:46,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:43:46,834 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)] === [2024-11-08 18:43:46,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1618788780, now seen corresponding path program 1 times [2024-11-08 18:43:46,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830746544] [2024-11-08 18:43:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:43:47,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:47,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830746544] [2024-11-08 18:43:47,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830746544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:47,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:47,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:47,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685214069] [2024-11-08 18:43:47,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:47,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:47,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:47,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:47,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 73 [2024-11-08 18:43:47,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 85 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2024-11-08 18:43:47,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:47,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 73 [2024-11-08 18:43:47,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:50,034 INFO L124 PetriNetUnfolderBase]: 8713/13936 cut-off events. [2024-11-08 18:43:50,035 INFO L125 PetriNetUnfolderBase]: For 7665/7665 co-relation queries the response was YES. [2024-11-08 18:43:50,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32466 conditions, 13936 events. 8713/13936 cut-off events. For 7665/7665 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 104438 event pairs, 1697 based on Foata normal form. 922/14023 useless extension candidates. Maximal degree in co-relation 27616. Up to 6863 conditions per place. [2024-11-08 18:43:50,176 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 93 selfloop transitions, 10 changer transitions 5/141 dead transitions. [2024-11-08 18:43:50,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 141 transitions, 777 flow [2024-11-08 18:43:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:43:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:43:50,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 331 transitions. [2024-11-08 18:43:50,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6477495107632094 [2024-11-08 18:43:50,178 INFO L175 Difference]: Start difference. First operand has 96 places, 85 transitions, 355 flow. Second operand 7 states and 331 transitions. [2024-11-08 18:43:50,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 141 transitions, 777 flow [2024-11-08 18:43:50,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 141 transitions, 753 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-08 18:43:50,191 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 390 flow [2024-11-08 18:43:50,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=390, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2024-11-08 18:43:50,193 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 26 predicate places. [2024-11-08 18:43:50,193 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 390 flow [2024-11-08 18:43:50,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2024-11-08 18:43:50,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:50,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:50,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:43:50,194 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)] === [2024-11-08 18:43:50,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:50,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1912716999, now seen corresponding path program 1 times [2024-11-08 18:43:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:50,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494953740] [2024-11-08 18:43:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:43:50,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:50,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494953740] [2024-11-08 18:43:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494953740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:50,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:50,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771784763] [2024-11-08 18:43:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:50,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:50,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:50,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:50,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 73 [2024-11-08 18:43:50,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2024-11-08 18:43:50,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:50,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 73 [2024-11-08 18:43:50,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:51,719 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][100], [Black: 120#(= ~j~0 0), 37#L57true, 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 107#(= ~i~0 0), 131#true, 148#(and (= |thread1Thread1of1ForFork2_~cond~0#1| 1) (<= (+ ~i~0 1) ~N~0)), 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,720 INFO L294 olderBase$Statistics]: this new event has 46 ancestors and is cut-off event [2024-11-08 18:43:51,720 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2024-11-08 18:43:51,720 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2024-11-08 18:43:51,720 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2024-11-08 18:43:51,786 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][100], [Black: 120#(= ~j~0 0), 24#L149true, 37#L57true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 107#(= ~i~0 0), 131#true, 53#thread2EXITtrue, 148#(and (= |thread1Thread1of1ForFork2_~cond~0#1| 1) (<= (+ ~i~0 1) ~N~0)), Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,786 INFO L294 olderBase$Statistics]: this new event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,787 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,787 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,787 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,787 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), 3#thread4EXITtrue, Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 28#L60true, 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,787 INFO L294 olderBase$Statistics]: this new event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,788 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,788 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,788 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2024-11-08 18:43:51,848 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 24#L149true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 28#L60true, 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,848 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,849 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,849 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,849 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,849 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, 11#L63true, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,850 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,850 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,850 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,850 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2024-11-08 18:43:51,897 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 24#L149true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, 11#L63true, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,897 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,898 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,898 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,898 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,899 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), 3#thread4EXITtrue, Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 131#true, 47#L51-2true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,899 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,899 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,899 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,899 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2024-11-08 18:43:51,931 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 24#L149true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), 3#thread4EXITtrue, Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 131#true, 47#L51-2true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,932 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,932 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,932 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,932 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,933 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 12#thread1EXITtrue, 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,933 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,933 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,934 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,934 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-08 18:43:51,944 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 37#L57true, 59#L148-4true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,945 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,945 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,945 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,945 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,959 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 24#L149true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 12#thread1EXITtrue, 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,959 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,959 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,959 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,960 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-08 18:43:51,966 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), 24#L149true, 37#L57true, Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,966 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,966 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,966 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,966 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,975 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, 53#thread2EXITtrue, 62#L149-1true, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,975 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,975 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,976 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,976 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2024-11-08 18:43:51,982 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), 21#thread3EXITtrue, 31#L150true, Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,982 INFO L294 olderBase$Statistics]: this new event has 53 ancestors and is cut-off event [2024-11-08 18:43:51,982 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2024-11-08 18:43:51,982 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2024-11-08 18:43:51,982 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2024-11-08 18:43:51,986 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1018] L114-2-->thread4EXIT: Formula: (and (= |v_thread4Thread1of1ForFork3_#res#1.offset_1| 0) (= |v_thread4Thread1of1ForFork3_#res#1.base_1| 0)) InVars {} OutVars{thread4Thread1of1ForFork3_#res#1.base=|v_thread4Thread1of1ForFork3_#res#1.base_1|, thread4Thread1of1ForFork3_#res#1.offset=|v_thread4Thread1of1ForFork3_#res#1.offset_1|} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_#res#1.base, thread4Thread1of1ForFork3_#res#1.offset][118], [Black: 120#(= ~j~0 0), Black: 101#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 99#(<= ~n2~0 0), Black: 98#(and (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 3#thread4EXITtrue, 131#true, Black: 136#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 138#(and (<= (div |thread4Thread1of1ForFork3_~cond~3#1| 256) 0) (or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)) (<= 1 |thread4Thread1of1ForFork3_~cond~3#1|)), Black: 135#(or (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 134#(or (and (= ~j~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0)) (< ~j~0 ~N~0) (< ~q2_front~0 ~q2_back~0)), Black: 77#(= ~total~0 0), Black: 81#(<= ~q1_back~0 ~q1_front~0), Black: 107#(= ~i~0 0), Black: 108#(and (= ~i~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 15#L151true, 143#true, Black: 85#(= ~q2_back~0 ~q2_front~0), Black: 90#(<= ~n1~0 0), Black: 89#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0)), Black: 92#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~1#1| 0))]) [2024-11-08 18:43:51,987 INFO L294 olderBase$Statistics]: this new event has 54 ancestors and is cut-off event [2024-11-08 18:43:51,987 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-08 18:43:51,987 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-08 18:43:51,987 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-08 18:43:51,997 INFO L124 PetriNetUnfolderBase]: 6930/10666 cut-off events. [2024-11-08 18:43:51,997 INFO L125 PetriNetUnfolderBase]: For 12660/13167 co-relation queries the response was YES. [2024-11-08 18:43:52,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27733 conditions, 10666 events. 6930/10666 cut-off events. For 12660/13167 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 72136 event pairs, 374 based on Foata normal form. 696/10939 useless extension candidates. Maximal degree in co-relation 24525. Up to 6128 conditions per place. [2024-11-08 18:43:52,101 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 87 selfloop transitions, 5 changer transitions 5/130 dead transitions. [2024-11-08 18:43:52,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 774 flow [2024-11-08 18:43:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:43:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2024-11-08 18:43:52,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.636986301369863 [2024-11-08 18:43:52,104 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 390 flow. Second operand 6 states and 279 transitions. [2024-11-08 18:43:52,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 774 flow [2024-11-08 18:43:52,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 130 transitions, 754 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-08 18:43:52,118 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 346 flow [2024-11-08 18:43:52,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2024-11-08 18:43:52,120 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 26 predicate places. [2024-11-08 18:43:52,121 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 346 flow [2024-11-08 18:43:52,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2024-11-08 18:43:52,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:52,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:52,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:43:52,123 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)] === [2024-11-08 18:43:52,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash -327253945, now seen corresponding path program 1 times [2024-11-08 18:43:52,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:52,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998310459] [2024-11-08 18:43:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:52,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:43:52,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:52,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998310459] [2024-11-08 18:43:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998310459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:52,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765850668] [2024-11-08 18:43:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:52,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:52,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:52,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:52,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:43:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:52,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:43:52,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:43:53,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:43:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765850668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:43:53,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:43:53,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2024-11-08 18:43:53,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254183185] [2024-11-08 18:43:53,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:53,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 18:43:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 18:43:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:43:53,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 73 [2024-11-08 18:43:53,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 346 flow. Second operand has 17 states, 17 states have (on average 29.0) internal successors, (493), 17 states have internal predecessors, (493), 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) [2024-11-08 18:43:53,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:53,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 73 [2024-11-08 18:43:53,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:44:00,458 INFO L124 PetriNetUnfolderBase]: 25789/38405 cut-off events. [2024-11-08 18:44:00,458 INFO L125 PetriNetUnfolderBase]: For 40025/40301 co-relation queries the response was YES. [2024-11-08 18:44:00,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102699 conditions, 38405 events. 25789/38405 cut-off events. For 40025/40301 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 289528 event pairs, 77 based on Foata normal form. 1192/38279 useless extension candidates. Maximal degree in co-relation 102656. Up to 4785 conditions per place. [2024-11-08 18:44:00,766 INFO L140 encePairwiseOnDemand]: 51/73 looper letters, 475 selfloop transitions, 161 changer transitions 10/665 dead transitions. [2024-11-08 18:44:00,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 665 transitions, 4037 flow [2024-11-08 18:44:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-08 18:44:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-08 18:44:00,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 1620 transitions. [2024-11-08 18:44:00,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4931506849315068 [2024-11-08 18:44:00,774 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 346 flow. Second operand 45 states and 1620 transitions. [2024-11-08 18:44:00,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 665 transitions, 4037 flow [2024-11-08 18:44:00,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 665 transitions, 3973 flow, removed 17 selfloop flow, removed 7 redundant places. [2024-11-08 18:44:00,870 INFO L231 Difference]: Finished difference. Result has 156 places, 242 transitions, 1886 flow [2024-11-08 18:44:00,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1886, PETRI_PLACES=156, PETRI_TRANSITIONS=242} [2024-11-08 18:44:00,871 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 89 predicate places. [2024-11-08 18:44:00,871 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 242 transitions, 1886 flow [2024-11-08 18:44:00,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 29.0) internal successors, (493), 17 states have internal predecessors, (493), 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) [2024-11-08 18:44:00,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:44:00,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:00,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:01,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:01,074 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)] === [2024-11-08 18:44:01,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1691273457, now seen corresponding path program 1 times [2024-11-08 18:44:01,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:01,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073869275] [2024-11-08 18:44:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:44:01,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:01,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073869275] [2024-11-08 18:44:01,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073869275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:01,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:01,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:44:01,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629985705] [2024-11-08 18:44:01,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:01,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:44:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:01,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:44:01,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:44:01,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2024-11-08 18:44:01,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 242 transitions, 1886 flow. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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) [2024-11-08 18:44:01,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:44:01,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2024-11-08 18:44:01,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:44:10,060 INFO L124 PetriNetUnfolderBase]: 31784/49800 cut-off events. [2024-11-08 18:44:10,060 INFO L125 PetriNetUnfolderBase]: For 299895/302117 co-relation queries the response was YES. [2024-11-08 18:44:10,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198875 conditions, 49800 events. 31784/49800 cut-off events. For 299895/302117 co-relation queries the response was YES. Maximal size of possible extension queue 2213. Compared 410345 event pairs, 5868 based on Foata normal form. 1269/48800 useless extension candidates. Maximal degree in co-relation 198809. Up to 13699 conditions per place. [2024-11-08 18:44:11,023 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 305 selfloop transitions, 57 changer transitions 0/435 dead transitions. [2024-11-08 18:44:11,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 435 transitions, 4113 flow [2024-11-08 18:44:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:44:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:44:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2024-11-08 18:44:11,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7214611872146118 [2024-11-08 18:44:11,025 INFO L175 Difference]: Start difference. First operand has 156 places, 242 transitions, 1886 flow. Second operand 6 states and 316 transitions. [2024-11-08 18:44:11,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 435 transitions, 4113 flow [2024-11-08 18:44:15,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 435 transitions, 3967 flow, removed 36 selfloop flow, removed 7 redundant places. [2024-11-08 18:44:15,341 INFO L231 Difference]: Finished difference. Result has 158 places, 273 transitions, 2260 flow [2024-11-08 18:44:15,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1749, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2260, PETRI_PLACES=158, PETRI_TRANSITIONS=273} [2024-11-08 18:44:15,342 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 91 predicate places. [2024-11-08 18:44:15,342 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 273 transitions, 2260 flow [2024-11-08 18:44:15,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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) [2024-11-08 18:44:15,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:44:15,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:15,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:44:15,343 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)] === [2024-11-08 18:44:15,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -271440221, now seen corresponding path program 1 times [2024-11-08 18:44:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:44:15,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144802060] [2024-11-08 18:44:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:15,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:44:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:44:19,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:44:19,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144802060] [2024-11-08 18:44:19,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144802060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:44:19,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639199402] [2024-11-08 18:44:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:19,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:19,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:19,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:44:19,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:44:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:19,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 18:44:19,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:20,536 INFO L349 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2024-11-08 18:44:20,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 46 [2024-11-08 18:44:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:44:20,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:21,391 INFO L349 Elim1Store]: treesize reduction 19, result has 92.5 percent of original size [2024-11-08 18:44:21,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 250 [2024-11-08 18:44:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:44:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639199402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:44:30,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:44:30,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 8] total 29 [2024-11-08 18:44:30,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277911619] [2024-11-08 18:44:30,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:44:30,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 18:44:30,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:44:30,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 18:44:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:44:32,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-08 18:44:32,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 273 transitions, 2260 flow. Second operand has 30 states, 30 states have (on average 36.13333333333333) internal successors, (1084), 30 states have internal predecessors, (1084), 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) [2024-11-08 18:44:32,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:44:32,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-08 18:44:32,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:44:41,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:47,908 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-08 18:44:47,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-08 18:44:47,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:48,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 18:44:48,116 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.enhanceAnddeterminizeInterpolantAutomaton(CegarLoopForPetriNet.java:485) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.refineAbstraction(CegarLoopForPetriNet.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-08 18:44:48,120 INFO L158 Benchmark]: Toolchain (without parser) took 79322.15ms. Allocated memory was 146.8MB in the beginning and 12.5GB in the end (delta: 12.4GB). Free memory was 114.6MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-11-08 18:44:48,121 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 91.0MB in the beginning and 90.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:44:48,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.78ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 111.9MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 18:44:48,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.36ms. Allocated memory is still 146.8MB. Free memory was 111.9MB in the beginning and 109.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:44:48,122 INFO L158 Benchmark]: Boogie Preprocessor took 64.91ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 105.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:44:48,123 INFO L158 Benchmark]: RCFGBuilder took 1609.88ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2024-11-08 18:44:48,123 INFO L158 Benchmark]: TraceAbstraction took 76987.59ms. Allocated memory was 176.2MB in the beginning and 12.5GB in the end (delta: 12.4GB). Free memory was 103.0MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-11-08 18:44:48,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 91.0MB in the beginning and 90.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.78ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 111.9MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.36ms. Allocated memory is still 146.8MB. Free memory was 111.9MB in the beginning and 109.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.91ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 105.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1609.88ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * TraceAbstraction took 76987.59ms. Allocated memory was 176.2MB in the beginning and 12.5GB in the end (delta: 12.4GB). Free memory was 103.0MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX --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 8dbd267b0e0821e8d358e8d234024d8e484ea32431972ed8b70b87052179a50c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:44:50,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:44:50,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:44:50,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:44:50,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:44:50,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:44:50,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:44:50,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:44:50,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:44:50,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:44:50,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:44:50,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:44:50,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:44:50,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:44:50,919 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:44:50,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:44:50,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:44:50,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:44:50,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:44:50,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:44:50,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:44:50,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:44:50,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:44:50,926 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:44:50,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:44:50,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:44:50,927 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:44:50,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:44:50,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:44:50,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:44:50,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:44:50,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:44:50,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:44:50,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:44:50,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:44:50,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:44:50,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:44:50,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:44:50,933 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:44:50,943 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:44:50,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:44:50,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:44:50,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:44:50,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:44:50,948 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dbd267b0e0821e8d358e8d234024d8e484ea32431972ed8b70b87052179a50c [2024-11-08 18:44:51,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:44:51,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:44:51,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:44:51,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:44:51,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:44:51,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c Unable to find full path for "g++" [2024-11-08 18:44:53,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:44:53,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:44:53,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2024-11-08 18:44:53,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/ef4f8c53a/106cb6c4192749bf868793fdfaadea41/FLAGf1687ee73 [2024-11-08 18:44:54,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/data/ef4f8c53a/106cb6c4192749bf868793fdfaadea41 [2024-11-08 18:44:54,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:44:54,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:44:54,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:44:54,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:44:54,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:44:54,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a6cafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54, skipping insertion in model container [2024-11-08 18:44:54,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:44:54,393 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4403,4416] [2024-11-08 18:44:54,410 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:44:54,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:44:54,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:44:54,484 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4403,4416] [2024-11-08 18:44:54,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:44:54,519 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:44:54,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54 WrapperNode [2024-11-08 18:44:54,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:44:54,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:44:54,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:44:54,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:44:54,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,640 INFO L138 Inliner]: procedures = 28, calls = 67, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 323 [2024-11-08 18:44:54,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:44:54,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:44:54,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:44:54,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:44:54,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,685 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-08 18:44:54,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:44:54,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:44:54,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:44:54,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:44:54,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (1/1) ... [2024-11-08 18:44:54,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:44:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:54,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:44:54,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:44:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:44:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:44:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:44:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:44:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:44:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:44:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:44:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:44:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:44:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:44:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:44:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 18:44:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 18:44:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 18:44:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 18:44:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:44:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:44:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:44:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:44:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:44:54,799 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:44:54,957 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:44:54,959 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:44:55,632 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:44:55,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:44:56,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:44:56,231 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:44:56,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:44:56 BoogieIcfgContainer [2024-11-08 18:44:56,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:44:56,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:44:56,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:44:56,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:44:56,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:44:54" (1/3) ... [2024-11-08 18:44:56,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@822b7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:44:56, skipping insertion in model container [2024-11-08 18:44:56,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:44:54" (2/3) ... [2024-11-08 18:44:56,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@822b7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:44:56, skipping insertion in model container [2024-11-08 18:44:56,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:44:56" (3/3) ... [2024-11-08 18:44:56,244 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2024-11-08 18:44:56,266 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:44:56,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:44:56,267 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:44:56,387 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 18:44:56,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 174 flow [2024-11-08 18:44:56,504 INFO L124 PetriNetUnfolderBase]: 14/69 cut-off events. [2024-11-08 18:44:56,507 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:44:56,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 14/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-08 18:44:56,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 73 transitions, 174 flow [2024-11-08 18:44:56,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 160 flow [2024-11-08 18:44:56,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:44:56,544 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;@49cc80f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:44:56,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 18:44:56,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:44:56,583 INFO L124 PetriNetUnfolderBase]: 14/67 cut-off events. [2024-11-08 18:44:56,583 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:44:56,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:44:56,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:56,584 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)] === [2024-11-08 18:44:56,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:56,591 INFO L85 PathProgramCache]: Analyzing trace with hash -47309373, now seen corresponding path program 1 times [2024-11-08 18:44:56,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:56,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229616314] [2024-11-08 18:44:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:56,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:56,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:56,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:44:56,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:44:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:56,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:44:56,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:44:57,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:44:57,124 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:57,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229616314] [2024-11-08 18:44:57,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229616314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:57,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:57,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:44:57,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094179410] [2024-11-08 18:44:57,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:57,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:44:57,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:44:57,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:44:57,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 73 [2024-11-08 18:44:57,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-08 18:44:57,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:44:57,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 73 [2024-11-08 18:44:57,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:44:58,697 INFO L124 PetriNetUnfolderBase]: 2738/4714 cut-off events. [2024-11-08 18:44:58,701 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-08 18:44:58,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7985 conditions, 4714 events. 2738/4714 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 31785 event pairs, 472 based on Foata normal form. 1/3780 useless extension candidates. Maximal degree in co-relation 7206. Up to 2067 conditions per place. [2024-11-08 18:44:58,823 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 43 selfloop transitions, 3 changer transitions 1/85 dead transitions. [2024-11-08 18:44:58,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 85 transitions, 303 flow [2024-11-08 18:44:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:44:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:44:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-11-08 18:44:58,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7945205479452054 [2024-11-08 18:44:58,841 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 160 flow. Second operand 3 states and 174 transitions. [2024-11-08 18:44:58,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 85 transitions, 303 flow [2024-11-08 18:44:58,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 277 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-08 18:44:58,855 INFO L231 Difference]: Finished difference. Result has 62 places, 70 transitions, 163 flow [2024-11-08 18:44:58,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=62, PETRI_TRANSITIONS=70} [2024-11-08 18:44:58,867 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, -5 predicate places. [2024-11-08 18:44:58,868 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 70 transitions, 163 flow [2024-11-08 18:44:58,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-08 18:44:58,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:44:58,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:44:58,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:59,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:59,071 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)] === [2024-11-08 18:44:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1663300481, now seen corresponding path program 1 times [2024-11-08 18:44:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:59,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201602320] [2024-11-08 18:44:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:59,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:44:59,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:44:59,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:44:59,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:44:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:59,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:44:59,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:44:59,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:44:59,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:59,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201602320] [2024-11-08 18:44:59,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201602320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:44:59,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:44:59,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:44:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569959629] [2024-11-08 18:44:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:59,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:44:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:44:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:44:59,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 18:44:59,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:44:59,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:44:59,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 18:44:59,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:00,901 INFO L124 PetriNetUnfolderBase]: 3168/5403 cut-off events. [2024-11-08 18:45:00,901 INFO L125 PetriNetUnfolderBase]: For 686/686 co-relation queries the response was YES. [2024-11-08 18:45:00,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10020 conditions, 5403 events. 3168/5403 cut-off events. For 686/686 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 38342 event pairs, 1733 based on Foata normal form. 158/4236 useless extension candidates. Maximal degree in co-relation 3734. Up to 2885 conditions per place. [2024-11-08 18:45:00,972 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 66 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2024-11-08 18:45:00,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 103 transitions, 386 flow [2024-11-08 18:45:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:45:00,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:45:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2024-11-08 18:45:00,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.684931506849315 [2024-11-08 18:45:00,978 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 163 flow. Second operand 5 states and 250 transitions. [2024-11-08 18:45:00,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 103 transitions, 386 flow [2024-11-08 18:45:00,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:45:00,984 INFO L231 Difference]: Finished difference. Result has 68 places, 74 transitions, 200 flow [2024-11-08 18:45:00,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=68, PETRI_TRANSITIONS=74} [2024-11-08 18:45:00,986 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2024-11-08 18:45:00,986 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 74 transitions, 200 flow [2024-11-08 18:45:00,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:45:00,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:00,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:01,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:45:01,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:01,189 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)] === [2024-11-08 18:45:01,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1770601305, now seen corresponding path program 1 times [2024-11-08 18:45:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595018490] [2024-11-08 18:45:01,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:01,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:01,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:01,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:45:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:01,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:45:01,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:01,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:45:01,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:01,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595018490] [2024-11-08 18:45:01,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595018490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:01,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:01,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:45:01,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571377109] [2024-11-08 18:45:01,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:01,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:45:01,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:01,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:45:01,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:45:01,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2024-11-08 18:45:01,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 74 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:45:01,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:01,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2024-11-08 18:45:01,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:02,900 INFO L124 PetriNetUnfolderBase]: 4130/7487 cut-off events. [2024-11-08 18:45:02,900 INFO L125 PetriNetUnfolderBase]: For 2040/2040 co-relation queries the response was YES. [2024-11-08 18:45:02,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14036 conditions, 7487 events. 4130/7487 cut-off events. For 2040/2040 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 58463 event pairs, 2284 based on Foata normal form. 152/5733 useless extension candidates. Maximal degree in co-relation 11440. Up to 3751 conditions per place. [2024-11-08 18:45:02,986 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 65 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-08 18:45:02,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 103 transitions, 420 flow [2024-11-08 18:45:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:45:02,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:45:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 246 transitions. [2024-11-08 18:45:02,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.673972602739726 [2024-11-08 18:45:02,988 INFO L175 Difference]: Start difference. First operand has 68 places, 74 transitions, 200 flow. Second operand 5 states and 246 transitions. [2024-11-08 18:45:02,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 103 transitions, 420 flow [2024-11-08 18:45:02,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 103 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:45:02,992 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 241 flow [2024-11-08 18:45:02,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2024-11-08 18:45:02,993 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-11-08 18:45:02,993 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 241 flow [2024-11-08 18:45:02,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:45:02,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:02,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:03,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:45:03,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:03,199 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)] === [2024-11-08 18:45:03,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash 484302852, now seen corresponding path program 1 times [2024-11-08 18:45:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325266313] [2024-11-08 18:45:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:03,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:03,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:03,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:03,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:45:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:03,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:45:03,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:03,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:04,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:04,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325266313] [2024-11-08 18:45:04,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325266313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:45:04,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:45:04,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-08 18:45:04,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360253475] [2024-11-08 18:45:04,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:45:04,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:45:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:45:04,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:45:04,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-08 18:45:04,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 241 flow. Second operand has 11 states, 11 states have (on average 37.27272727272727) internal successors, (410), 11 states have internal predecessors, (410), 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) [2024-11-08 18:45:04,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:04,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-08 18:45:04,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:06,969 INFO L124 PetriNetUnfolderBase]: 5977/10540 cut-off events. [2024-11-08 18:45:06,969 INFO L125 PetriNetUnfolderBase]: For 4749/4749 co-relation queries the response was YES. [2024-11-08 18:45:07,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21380 conditions, 10540 events. 5977/10540 cut-off events. For 4749/4749 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 82220 event pairs, 1695 based on Foata normal form. 67/8747 useless extension candidates. Maximal degree in co-relation 17459. Up to 2811 conditions per place. [2024-11-08 18:45:07,097 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 101 selfloop transitions, 16 changer transitions 0/146 dead transitions. [2024-11-08 18:45:07,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 146 transitions, 679 flow [2024-11-08 18:45:07,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:45:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:45:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 408 transitions. [2024-11-08 18:45:07,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6210045662100456 [2024-11-08 18:45:07,099 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 241 flow. Second operand 9 states and 408 transitions. [2024-11-08 18:45:07,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 146 transitions, 679 flow [2024-11-08 18:45:07,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 146 transitions, 676 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:45:07,106 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 341 flow [2024-11-08 18:45:07,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=341, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2024-11-08 18:45:07,107 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 19 predicate places. [2024-11-08 18:45:07,107 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 341 flow [2024-11-08 18:45:07,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 37.27272727272727) internal successors, (410), 11 states have internal predecessors, (410), 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) [2024-11-08 18:45:07,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:07,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:07,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:45:07,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:07,309 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)] === [2024-11-08 18:45:07,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:07,309 INFO L85 PathProgramCache]: Analyzing trace with hash -656785681, now seen corresponding path program 1 times [2024-11-08 18:45:07,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:07,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977598746] [2024-11-08 18:45:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:07,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:07,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:07,312 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:07,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:45:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:07,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:45:07,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:07,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:08,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:08,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977598746] [2024-11-08 18:45:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977598746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:45:08,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:45:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-08 18:45:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542458298] [2024-11-08 18:45:08,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:45:08,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:45:08,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:08,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:45:08,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:45:08,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-08 18:45:08,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 341 flow. Second operand has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 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) [2024-11-08 18:45:08,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:08,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-08 18:45:08,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:11,166 INFO L124 PetriNetUnfolderBase]: 7029/12682 cut-off events. [2024-11-08 18:45:11,167 INFO L125 PetriNetUnfolderBase]: For 11322/11322 co-relation queries the response was YES. [2024-11-08 18:45:11,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27800 conditions, 12682 events. 7029/12682 cut-off events. For 11322/11322 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 103319 event pairs, 2578 based on Foata normal form. 291/10744 useless extension candidates. Maximal degree in co-relation 18622. Up to 4624 conditions per place. [2024-11-08 18:45:11,363 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 121 selfloop transitions, 11 changer transitions 0/161 dead transitions. [2024-11-08 18:45:11,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 161 transitions, 945 flow [2024-11-08 18:45:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:45:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:45:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 366 transitions. [2024-11-08 18:45:11,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6267123287671232 [2024-11-08 18:45:11,367 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 341 flow. Second operand 8 states and 366 transitions. [2024-11-08 18:45:11,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 161 transitions, 945 flow [2024-11-08 18:45:11,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 161 transitions, 890 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-08 18:45:11,388 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 397 flow [2024-11-08 18:45:11,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=397, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-11-08 18:45:11,391 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 28 predicate places. [2024-11-08 18:45:11,392 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 397 flow [2024-11-08 18:45:11,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 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) [2024-11-08 18:45:11,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:11,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:11,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:45:11,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:11,595 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)] === [2024-11-08 18:45:11,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:11,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1952702266, now seen corresponding path program 1 times [2024-11-08 18:45:11,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227224770] [2024-11-08 18:45:11,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:11,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:11,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:11,605 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:11,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:45:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:11,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:45:11,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:45:12,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:45:12,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227224770] [2024-11-08 18:45:12,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227224770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:45:12,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:45:12,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2024-11-08 18:45:12,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211877666] [2024-11-08 18:45:12,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:45:12,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:45:12,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:45:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:45:12,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 73 [2024-11-08 18:45:12,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 397 flow. Second operand has 12 states, 12 states have (on average 29.916666666666668) internal successors, (359), 12 states have internal predecessors, (359), 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) [2024-11-08 18:45:12,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:12,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 73 [2024-11-08 18:45:12,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:33,803 INFO L124 PetriNetUnfolderBase]: 110427/146741 cut-off events. [2024-11-08 18:45:33,803 INFO L125 PetriNetUnfolderBase]: For 126805/126805 co-relation queries the response was YES. [2024-11-08 18:45:34,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361499 conditions, 146741 events. 110427/146741 cut-off events. For 126805/126805 co-relation queries the response was YES. Maximal size of possible extension queue 5415. Compared 1021797 event pairs, 1917 based on Foata normal form. 0/137571 useless extension candidates. Maximal degree in co-relation 266969. Up to 17950 conditions per place. [2024-11-08 18:45:35,444 INFO L140 encePairwiseOnDemand]: 59/73 looper letters, 490 selfloop transitions, 117 changer transitions 1/638 dead transitions. [2024-11-08 18:45:35,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 638 transitions, 3656 flow [2024-11-08 18:45:35,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-08 18:45:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-08 18:45:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1498 transitions. [2024-11-08 18:45:35,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5546094039244724 [2024-11-08 18:45:35,455 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 397 flow. Second operand 37 states and 1498 transitions. [2024-11-08 18:45:35,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 638 transitions, 3656 flow [2024-11-08 18:45:35,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 638 transitions, 3605 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-08 18:45:35,578 INFO L231 Difference]: Finished difference. Result has 147 places, 211 transitions, 1274 flow [2024-11-08 18:45:35,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1274, PETRI_PLACES=147, PETRI_TRANSITIONS=211} [2024-11-08 18:45:35,580 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 80 predicate places. [2024-11-08 18:45:35,580 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 211 transitions, 1274 flow [2024-11-08 18:45:35,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.916666666666668) internal successors, (359), 12 states have internal predecessors, (359), 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) [2024-11-08 18:45:35,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:35,581 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:35,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:45:35,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:35,785 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)] === [2024-11-08 18:45:35,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1045428410, now seen corresponding path program 2 times [2024-11-08 18:45:35,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:35,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036462607] [2024-11-08 18:45:35,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:45:35,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:35,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:35,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:35,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:45:35,967 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:45:35,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:45:35,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:45:35,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:45:36,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:45:36,222 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036462607] [2024-11-08 18:45:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036462607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:45:36,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:45:36,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:45:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671009712] [2024-11-08 18:45:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:45:36,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:45:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:36,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:45:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:45:36,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-11-08 18:45:36,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 211 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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) [2024-11-08 18:45:36,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:36,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-11-08 18:45:36,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:45:47,669 INFO L124 PetriNetUnfolderBase]: 46483/71611 cut-off events. [2024-11-08 18:45:47,669 INFO L125 PetriNetUnfolderBase]: For 181376/183753 co-relation queries the response was YES. [2024-11-08 18:45:48,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214025 conditions, 71611 events. 46483/71611 cut-off events. For 181376/183753 co-relation queries the response was YES. Maximal size of possible extension queue 2965. Compared 623116 event pairs, 8459 based on Foata normal form. 1486/68267 useless extension candidates. Maximal degree in co-relation 168651. Up to 21658 conditions per place. [2024-11-08 18:45:48,502 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 218 selfloop transitions, 20 changer transitions 0/322 dead transitions. [2024-11-08 18:45:48,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 322 transitions, 2255 flow [2024-11-08 18:45:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:45:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:45:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 398 transitions. [2024-11-08 18:45:48,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057838660578386 [2024-11-08 18:45:48,504 INFO L175 Difference]: Start difference. First operand has 147 places, 211 transitions, 1274 flow. Second operand 9 states and 398 transitions. [2024-11-08 18:45:48,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 322 transitions, 2255 flow [2024-11-08 18:45:51,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 322 transitions, 2251 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-08 18:45:51,325 INFO L231 Difference]: Finished difference. Result has 160 places, 227 transitions, 1438 flow [2024-11-08 18:45:51,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1438, PETRI_PLACES=160, PETRI_TRANSITIONS=227} [2024-11-08 18:45:51,327 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 93 predicate places. [2024-11-08 18:45:51,327 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 227 transitions, 1438 flow [2024-11-08 18:45:51,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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) [2024-11-08 18:45:51,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:45:51,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:51,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:45:51,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:51,528 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)] === [2024-11-08 18:45:51,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:51,529 INFO L85 PathProgramCache]: Analyzing trace with hash -663022329, now seen corresponding path program 1 times [2024-11-08 18:45:51,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:51,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012502452] [2024-11-08 18:45:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:51,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:51,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:51,532 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:51,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ed30aea-3acb-4a4a-b8f2-816cd1d77281/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:45:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:51,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:45:51,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:45:51,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:45:52,030 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:45:52,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012502452] [2024-11-08 18:45:52,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012502452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:45:52,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:45:52,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-08 18:45:52,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011605544] [2024-11-08 18:45:52,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:45:52,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:45:52,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:45:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:45:52,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:45:52,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-11-08 18:45:52,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 227 transitions, 1438 flow. Second operand has 11 states, 11 states have (on average 33.90909090909091) internal successors, (373), 11 states have internal predecessors, (373), 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) [2024-11-08 18:45:52,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:45:52,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-11-08 18:45:52,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand