./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/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 df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:52:08,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:52:08,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:52:08,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:52:08,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:52:08,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:52:08,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:52:08,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:52:08,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:52:08,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:52:08,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:52:08,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:52:08,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:52:08,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:52:08,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:52:08,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:52:08,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:52:08,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:52:08,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:52:08,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:52:08,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:52:08,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:52:08,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:52:08,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:52:08,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:52:08,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:52:08,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:52:08,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:52:08,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:52:08,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:52:08,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:52:08,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:52:08,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:52:08,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:52:08,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:52:08,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:52:08,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:52:08,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:52:08,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:52:08,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:52:08,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:52:08,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:52:08,839 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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df63a9317cd159d15f0c87211084d5e90c66afa781f3187352107d14a3f61024 [2024-11-08 18:52:09,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:52:09,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:52:09,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:52:09,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:52:09,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:52:09,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c Unable to find full path for "g++" [2024-11-08 18:52:11,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:52:11,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:52:11,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2024-11-08 18:52:11,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/data/3f165c8a2/e641daa351c145b09cdd24e77f35b2f4/FLAG14910626a [2024-11-08 18:52:11,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/data/3f165c8a2/e641daa351c145b09cdd24e77f35b2f4 [2024-11-08 18:52:11,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:52:11,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:52:11,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:11,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:52:11,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:52:11,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:11" (1/1) ... [2024-11-08 18:52:11,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dae1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:11, skipping insertion in model container [2024-11-08 18:52:11,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:11" (1/1) ... [2024-11-08 18:52:11,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:52:12,173 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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c[2904,2917] [2024-11-08 18:52:12,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:12,200 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:52:12,250 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_e6f479d8-39c1-42a9-9dcc-db166b6510cb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c[2904,2917] [2024-11-08 18:52:12,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:12,288 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:52:12,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12 WrapperNode [2024-11-08 18:52:12,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:12,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:12,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:52:12,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:52:12,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,365 INFO L138 Inliner]: procedures = 24, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-11-08 18:52:12,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:12,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:52:12,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:52:12,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:52:12,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,427 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:52:12,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:52:12,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:52:12,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:52:12,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:52:12,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (1/1) ... [2024-11-08 18:52:12,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:52:12,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:12,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:52:12,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:52:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:52:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:52:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:52:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:52:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:52:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:52:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:52:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 18:52:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 18:52:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:52:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-08 18:52:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-08 18:52:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-08 18:52:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-08 18:52:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:52:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:52:12,551 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 18:52:12,730 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:52:12,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:52:13,110 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:52:13,110 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:52:13,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:52:13,395 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:52:13,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:13 BoogieIcfgContainer [2024-11-08 18:52:13,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:52:13,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:52:13,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:52:13,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:52:13,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:52:11" (1/3) ... [2024-11-08 18:52:13,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e746c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:52:13, skipping insertion in model container [2024-11-08 18:52:13,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:12" (2/3) ... [2024-11-08 18:52:13,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e746c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:52:13, skipping insertion in model container [2024-11-08 18:52:13,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:13" (3/3) ... [2024-11-08 18:52:13,419 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-11-08 18:52:13,441 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:52:13,441 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:52:13,441 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:52:13,526 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-08 18:52:13,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 64 transitions, 170 flow [2024-11-08 18:52:13,642 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2024-11-08 18:52:13,643 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:52:13,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 58 events. 12/58 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-08 18:52:13,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 64 transitions, 170 flow [2024-11-08 18:52:13,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 57 transitions, 150 flow [2024-11-08 18:52:13,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:52:13,676 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;@545e81c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:52:13,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 18:52:13,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:52:13,704 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2024-11-08 18:52:13,704 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:52:13,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:52:13,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:13,706 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 4 more)] === [2024-11-08 18:52:13,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:13,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1556648750, now seen corresponding path program 1 times [2024-11-08 18:52:13,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198606747] [2024-11-08 18:52:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:13,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:14,548 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 18:52:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:14,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198606747] [2024-11-08 18:52:14,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198606747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:14,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:14,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:52:14,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219952537] [2024-11-08 18:52:14,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:14,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:52:14,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:14,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:14,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 64 [2024-11-08 18:52:14,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:14,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:52:14,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 64 [2024-11-08 18:52:14,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:52:19,856 INFO L124 PetriNetUnfolderBase]: 23211/29768 cut-off events. [2024-11-08 18:52:19,856 INFO L125 PetriNetUnfolderBase]: For 1331/1331 co-relation queries the response was YES. [2024-11-08 18:52:20,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56149 conditions, 29768 events. 23211/29768 cut-off events. For 1331/1331 co-relation queries the response was YES. Maximal size of possible extension queue 1236. Compared 149376 event pairs, 3972 based on Foata normal form. 1/27397 useless extension candidates. Maximal degree in co-relation 48552. Up to 16365 conditions per place. [2024-11-08 18:52:20,427 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 49 selfloop transitions, 3 changer transitions 1/78 dead transitions. [2024-11-08 18:52:20,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 319 flow [2024-11-08 18:52:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:52:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-11-08 18:52:20,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.765625 [2024-11-08 18:52:20,451 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 150 flow. Second operand 3 states and 147 transitions. [2024-11-08 18:52:20,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 319 flow [2024-11-08 18:52:20,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 78 transitions, 281 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-08 18:52:20,524 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 145 flow [2024-11-08 18:52:20,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-11-08 18:52:20,534 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2024-11-08 18:52:20,534 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 145 flow [2024-11-08 18:52:20,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:20,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:52:20,536 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 18:52:20,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:52:20,537 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 4 more)] === [2024-11-08 18:52:20,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:20,538 INFO L85 PathProgramCache]: Analyzing trace with hash 639065321, now seen corresponding path program 1 times [2024-11-08 18:52:20,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:20,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175459682] [2024-11-08 18:52:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:20,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:52:20,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175459682] [2024-11-08 18:52:20,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175459682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:20,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:20,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:52:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499556505] [2024-11-08 18:52:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:20,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:52:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:20,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:20,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:20,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 64 [2024-11-08 18:52:20,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 18:52:20,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:52:20,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 64 [2024-11-08 18:52:20,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:52:25,825 INFO L124 PetriNetUnfolderBase]: 30538/39504 cut-off events. [2024-11-08 18:52:25,825 INFO L125 PetriNetUnfolderBase]: For 4357/4357 co-relation queries the response was YES. [2024-11-08 18:52:26,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78806 conditions, 39504 events. 30538/39504 cut-off events. For 4357/4357 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 213523 event pairs, 4575 based on Foata normal form. 1/36720 useless extension candidates. Maximal degree in co-relation 26199. Up to 23661 conditions per place. [2024-11-08 18:52:26,437 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 60 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2024-11-08 18:52:26,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 90 transitions, 358 flow [2024-11-08 18:52:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:52:26,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-11-08 18:52:26,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8072916666666666 [2024-11-08 18:52:26,441 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 145 flow. Second operand 3 states and 155 transitions. [2024-11-08 18:52:26,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 90 transitions, 358 flow [2024-11-08 18:52:26,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 90 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:52:26,447 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 161 flow [2024-11-08 18:52:26,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2024-11-08 18:52:26,449 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2024-11-08 18:52:26,449 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 161 flow [2024-11-08 18:52:26,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 18:52:26,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:52:26,450 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 18:52:26,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:52:26,450 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 4 more)] === [2024-11-08 18:52:26,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1981525986, now seen corresponding path program 1 times [2024-11-08 18:52:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773458858] [2024-11-08 18:52:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:52:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:26,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773458858] [2024-11-08 18:52:26,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773458858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:26,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:26,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:52:26,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766383147] [2024-11-08 18:52:26,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:26,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:52:26,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:26,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:26,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:26,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 64 [2024-11-08 18:52:26,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:26,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:52:26,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 64 [2024-11-08 18:52:26,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:52:30,701 INFO L124 PetriNetUnfolderBase]: 39196/51724 cut-off events. [2024-11-08 18:52:30,701 INFO L125 PetriNetUnfolderBase]: For 12577/12577 co-relation queries the response was YES. [2024-11-08 18:52:30,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108596 conditions, 51724 events. 39196/51724 cut-off events. For 12577/12577 co-relation queries the response was YES. Maximal size of possible extension queue 2204. Compared 302300 event pairs, 5698 based on Foata normal form. 1/47788 useless extension candidates. Maximal degree in co-relation 44978. Up to 31100 conditions per place. [2024-11-08 18:52:31,415 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 60 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2024-11-08 18:52:31,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 90 transitions, 376 flow [2024-11-08 18:52:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:52:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-08 18:52:31,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7864583333333334 [2024-11-08 18:52:31,418 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 161 flow. Second operand 3 states and 151 transitions. [2024-11-08 18:52:31,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 90 transitions, 376 flow [2024-11-08 18:52:31,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 90 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:52:31,427 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 177 flow [2024-11-08 18:52:31,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=59, PETRI_TRANSITIONS=63} [2024-11-08 18:52:31,428 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2024-11-08 18:52:31,429 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 177 flow [2024-11-08 18:52:31,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:31,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:52:31,430 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] [2024-11-08 18:52:31,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:52:31,431 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 4 more)] === [2024-11-08 18:52:31,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1732641247, now seen corresponding path program 1 times [2024-11-08 18:52:31,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:31,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983586075] [2024-11-08 18:52:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:31,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:52:31,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:31,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983586075] [2024-11-08 18:52:31,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983586075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:31,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388147223] [2024-11-08 18:52:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:31,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:31,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:31,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:52:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:52:31,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:52:31,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:52:32,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388147223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:52:32,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:52:32,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-08 18:52:32,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431350952] [2024-11-08 18:52:32,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:52:32,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:52:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:32,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:32,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:32,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 64 [2024-11-08 18:52:32,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 63 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 18:52:32,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:52:32,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 64 [2024-11-08 18:52:32,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:52:48,051 INFO L124 PetriNetUnfolderBase]: 134988/161646 cut-off events. [2024-11-08 18:52:48,057 INFO L125 PetriNetUnfolderBase]: For 52287/52287 co-relation queries the response was YES. [2024-11-08 18:52:48,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386849 conditions, 161646 events. 134988/161646 cut-off events. For 52287/52287 co-relation queries the response was YES. Maximal size of possible extension queue 6614. Compared 839681 event pairs, 13381 based on Foata normal form. 6705/155441 useless extension candidates. Maximal degree in co-relation 131428. Up to 51950 conditions per place. [2024-11-08 18:52:49,213 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 152 selfloop transitions, 10 changer transitions 6/187 dead transitions. [2024-11-08 18:52:49,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 187 transitions, 870 flow [2024-11-08 18:52:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:52:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2024-11-08 18:52:49,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7994791666666666 [2024-11-08 18:52:49,215 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 177 flow. Second operand 6 states and 307 transitions. [2024-11-08 18:52:49,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 187 transitions, 870 flow [2024-11-08 18:52:49,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 187 transitions, 859 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:52:49,227 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 248 flow [2024-11-08 18:52:49,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2024-11-08 18:52:49,228 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2024-11-08 18:52:49,229 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 248 flow [2024-11-08 18:52:49,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 18:52:49,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:52:49,229 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] [2024-11-08 18:52:49,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:49,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f479d8-39c1-42a9-9dcc-db166b6510cb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:49,430 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 4 more)] === [2024-11-08 18:52:49,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:49,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2041230147, now seen corresponding path program 1 times [2024-11-08 18:52:49,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:49,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104661372] [2024-11-08 18:52:49,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:49,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:49,829 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 18:52:49,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104661372] [2024-11-08 18:52:49,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104661372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:49,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:49,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:49,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553852982] [2024-11-08 18:52:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:49,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:49,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:49,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 64 [2024-11-08 18:52:49,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 18:52:49,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:52:49,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 64 [2024-11-08 18:52:49,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand