./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/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_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/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_525c2107-08d2-4dbf-9177-7dc3b56f959d/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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:20:25,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:20:25,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:20:25,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:20:25,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:20:25,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:20:25,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:20:25,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:20:25,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:20:25,500 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:20:25,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:20:25,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:20:25,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:20:25,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:20:25,507 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:20:25,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:20:25,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:20:25,508 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:20:25,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:20:25,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:20:25,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:20:25,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:20:25,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:20:25,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:20:25,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:20:25,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:20:25,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:20:25,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:20:25,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:20:25,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:20:25,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:20:25,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:20:25,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:20:25,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:20:25,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:20:25,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:20:25,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:20:25,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:20:25,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:20:25,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:20:25,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:20:25,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:20:25,533 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_525c2107-08d2-4dbf-9177-7dc3b56f959d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2024-11-08 19:20:25,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:20:25,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:20:25,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:20:25,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:20:25,876 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:20:25,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i Unable to find full path for "g++" [2024-11-08 19:20:28,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:20:28,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:20:28,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-08 19:20:28,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/data/14611a37a/283cfcd90c184fcca25c3c4b67acc113/FLAGc85bfd5c7 [2024-11-08 19:20:28,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/data/14611a37a/283cfcd90c184fcca25c3c4b67acc113 [2024-11-08 19:20:28,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:20:28,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:20:28,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:20:28,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:20:28,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:20:28,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:20:28" (1/1) ... [2024-11-08 19:20:28,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64671ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:28, skipping insertion in model container [2024-11-08 19:20:28,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:20:28" (1/1) ... [2024-11-08 19:20:28,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:20:29,053 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_525c2107-08d2-4dbf-9177-7dc3b56f959d/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-08 19:20:29,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:20:29,347 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:20:29,363 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_525c2107-08d2-4dbf-9177-7dc3b56f959d/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-08 19:20:29,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:20:29,480 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:20:29,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29 WrapperNode [2024-11-08 19:20:29,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:20:29,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:20:29,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:20:29,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:20:29,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,546 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 96 [2024-11-08 19:20:29,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:20:29,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:20:29,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:20:29,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:20:29,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,595 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-08 19:20:29,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:20:29,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:20:29,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:20:29,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:20:29,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (1/1) ... [2024-11-08 19:20:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:20:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:29,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:20:29,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:20:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-08 19:20:29,711 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-08 19:20:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:20:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:20:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:20:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:20:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:20:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:20:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:20:29,714 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 19:20:29,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:20:29,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:20:30,160 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:20:30,160 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:20:30,398 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:20:30,398 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:20:30,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:30 BoogieIcfgContainer [2024-11-08 19:20:30,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:20:30,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:20:30,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:20:30,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:20:30,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:20:28" (1/3) ... [2024-11-08 19:20:30,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402c1b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:20:30, skipping insertion in model container [2024-11-08 19:20:30,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:29" (2/3) ... [2024-11-08 19:20:30,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402c1b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:20:30, skipping insertion in model container [2024-11-08 19:20:30,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:30" (3/3) ... [2024-11-08 19:20:30,409 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-11-08 19:20:30,429 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:20:30,429 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:20:30,430 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:20:30,479 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 19:20:30,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 40 transitions, 84 flow [2024-11-08 19:20:30,562 INFO L124 PetriNetUnfolderBase]: 8/39 cut-off events. [2024-11-08 19:20:30,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:20:30,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 39 events. 8/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-08 19:20:30,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 40 transitions, 84 flow [2024-11-08 19:20:30,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 39 transitions, 81 flow [2024-11-08 19:20:30,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:20:30,593 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;@5407fc08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:20:30,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 19:20:30,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:20:30,607 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-08 19:20:30,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:20:30,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:30,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:30,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:30,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash 892751590, now seen corresponding path program 1 times [2024-11-08 19:20:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:30,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724580942] [2024-11-08 19:20:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:30,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:31,042 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 19:20:31,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724580942] [2024-11-08 19:20:31,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724580942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:31,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:31,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:20:31,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502432703] [2024-11-08 19:20:31,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:31,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:20:31,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:31,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:20:31,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:20:31,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-11-08 19:20:31,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 39 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 19:20:31,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:31,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-11-08 19:20:31,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:31,288 INFO L124 PetriNetUnfolderBase]: 131/291 cut-off events. [2024-11-08 19:20:31,289 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:20:31,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 291 events. 131/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1130 event pairs, 47 based on Foata normal form. 22/282 useless extension candidates. Maximal degree in co-relation 499. Up to 174 conditions per place. [2024-11-08 19:20:31,296 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 27 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2024-11-08 19:20:31,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 149 flow [2024-11-08 19:20:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:20:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 19:20:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-08 19:20:31,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-08 19:20:31,316 INFO L175 Difference]: Start difference. First operand has 35 places, 39 transitions, 81 flow. Second operand 3 states and 84 transitions. [2024-11-08 19:20:31,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 149 flow [2024-11-08 19:20:31,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:20:31,324 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 88 flow [2024-11-08 19:20:31,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2024-11-08 19:20:31,331 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-08 19:20:31,331 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 88 flow [2024-11-08 19:20:31,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 19:20:31,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:31,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:31,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:20:31,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:31,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash 892783368, now seen corresponding path program 1 times [2024-11-08 19:20:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:31,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695932018] [2024-11-08 19:20:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:31,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:31,619 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 19:20:31,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:31,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695932018] [2024-11-08 19:20:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695932018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:20:31,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671166573] [2024-11-08 19:20:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:31,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:31,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:31,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:31,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-11-08 19:20:31,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 19:20:31,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:31,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-11-08 19:20:31,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:31,926 INFO L124 PetriNetUnfolderBase]: 166/343 cut-off events. [2024-11-08 19:20:31,929 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-08 19:20:31,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 343 events. 166/343 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1347 event pairs, 58 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 674. Up to 197 conditions per place. [2024-11-08 19:20:31,937 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 35 selfloop transitions, 9 changer transitions 2/57 dead transitions. [2024-11-08 19:20:31,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 225 flow [2024-11-08 19:20:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:20:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-11-08 19:20:31,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54 [2024-11-08 19:20:31,946 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 88 flow. Second operand 5 states and 108 transitions. [2024-11-08 19:20:31,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 225 flow [2024-11-08 19:20:31,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:20:31,951 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 140 flow [2024-11-08 19:20:31,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2024-11-08 19:20:31,954 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2024-11-08 19:20:31,954 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 140 flow [2024-11-08 19:20:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 19:20:31,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:31,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:31,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:20:31,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -582651438, now seen corresponding path program 1 times [2024-11-08 19:20:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:31,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596760522] [2024-11-08 19:20:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:32,160 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 19:20:32,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:32,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596760522] [2024-11-08 19:20:32,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596760522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:32,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:32,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:20:32,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597821673] [2024-11-08 19:20:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:32,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:32,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:32,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:32,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:32,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2024-11-08 19:20:32,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 19:20:32,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:32,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2024-11-08 19:20:32,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:32,355 INFO L124 PetriNetUnfolderBase]: 143/340 cut-off events. [2024-11-08 19:20:32,355 INFO L125 PetriNetUnfolderBase]: For 114/120 co-relation queries the response was YES. [2024-11-08 19:20:32,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 340 events. 143/340 cut-off events. For 114/120 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1260 event pairs, 31 based on Foata normal form. 18/350 useless extension candidates. Maximal degree in co-relation 761. Up to 120 conditions per place. [2024-11-08 19:20:32,362 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 35 selfloop transitions, 6 changer transitions 1/55 dead transitions. [2024-11-08 19:20:32,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 262 flow [2024-11-08 19:20:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:20:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:20:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-11-08 19:20:32,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-08 19:20:32,368 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 140 flow. Second operand 4 states and 100 transitions. [2024-11-08 19:20:32,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 262 flow [2024-11-08 19:20:32,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:20:32,375 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 168 flow [2024-11-08 19:20:32,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-11-08 19:20:32,377 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2024-11-08 19:20:32,377 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 168 flow [2024-11-08 19:20:32,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 19:20:32,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:32,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:32,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:20:32,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:32,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash -582683216, now seen corresponding path program 1 times [2024-11-08 19:20:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115057944] [2024-11-08 19:20:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:32,527 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 19:20:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:32,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115057944] [2024-11-08 19:20:32,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115057944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:32,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:32,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:20:32,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897493339] [2024-11-08 19:20:32,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:32,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:32,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:32,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-11-08 19:20:32,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:20:32,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:32,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-11-08 19:20:32,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:32,813 INFO L124 PetriNetUnfolderBase]: 202/441 cut-off events. [2024-11-08 19:20:32,814 INFO L125 PetriNetUnfolderBase]: For 285/286 co-relation queries the response was YES. [2024-11-08 19:20:32,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 441 events. 202/441 cut-off events. For 285/286 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1788 event pairs, 69 based on Foata normal form. 12/441 useless extension candidates. Maximal degree in co-relation 1122. Up to 241 conditions per place. [2024-11-08 19:20:32,821 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 41 selfloop transitions, 15 changer transitions 0/65 dead transitions. [2024-11-08 19:20:32,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 65 transitions, 360 flow [2024-11-08 19:20:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:20:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-08 19:20:32,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-08 19:20:32,824 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 168 flow. Second operand 5 states and 110 transitions. [2024-11-08 19:20:32,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 65 transitions, 360 flow [2024-11-08 19:20:32,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 19:20:32,835 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 261 flow [2024-11-08 19:20:32,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=261, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2024-11-08 19:20:32,838 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2024-11-08 19:20:32,839 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 261 flow [2024-11-08 19:20:32,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 19:20:32,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:32,839 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:32,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:20:32,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:32,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash 241816162, now seen corresponding path program 1 times [2024-11-08 19:20:32,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:32,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716511887] [2024-11-08 19:20:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:32,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:20:32,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:32,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716511887] [2024-11-08 19:20:32,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716511887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:32,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:32,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:20:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608577734] [2024-11-08 19:20:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:32,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:20:32,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:32,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:20:32,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:20:32,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-11-08 19:20:32,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 19:20:32,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:32,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-11-08 19:20:32,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:33,060 INFO L124 PetriNetUnfolderBase]: 75/208 cut-off events. [2024-11-08 19:20:33,061 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2024-11-08 19:20:33,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 208 events. 75/208 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 683 event pairs, 16 based on Foata normal form. 13/213 useless extension candidates. Maximal degree in co-relation 550. Up to 85 conditions per place. [2024-11-08 19:20:33,063 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 20 selfloop transitions, 4 changer transitions 4/42 dead transitions. [2024-11-08 19:20:33,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 254 flow [2024-11-08 19:20:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:20:33,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 19:20:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-08 19:20:33,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-08 19:20:33,066 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 261 flow. Second operand 3 states and 80 transitions. [2024-11-08 19:20:33,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 254 flow [2024-11-08 19:20:33,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 200 flow, removed 5 selfloop flow, removed 9 redundant places. [2024-11-08 19:20:33,073 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 126 flow [2024-11-08 19:20:33,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-11-08 19:20:33,077 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-08 19:20:33,077 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 126 flow [2024-11-08 19:20:33,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 19:20:33,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:33,078 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:33,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:20:33,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 19:20:33,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:33,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1572494797, now seen corresponding path program 1 times [2024-11-08 19:20:33,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:33,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464998210] [2024-11-08 19:20:33,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:33,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:20:33,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:33,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464998210] [2024-11-08 19:20:33,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464998210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:33,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:33,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:20:33,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539716842] [2024-11-08 19:20:33,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:33,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:20:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:20:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:20:33,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 19:20:33,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:33,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:33,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 19:20:33,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:33,494 INFO L124 PetriNetUnfolderBase]: 99/246 cut-off events. [2024-11-08 19:20:33,494 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-08 19:20:33,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 246 events. 99/246 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 826 event pairs, 31 based on Foata normal form. 16/255 useless extension candidates. Maximal degree in co-relation 576. Up to 89 conditions per place. [2024-11-08 19:20:33,496 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-08 19:20:33,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 266 flow [2024-11-08 19:20:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:20:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:20:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2024-11-08 19:20:33,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-08 19:20:33,499 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 126 flow. Second operand 7 states and 119 transitions. [2024-11-08 19:20:33,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 266 flow [2024-11-08 19:20:33,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 19:20:33,503 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-08 19:20:33,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-11-08 19:20:33,504 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-08 19:20:33,504 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-08 19:20:33,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:33,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-08 19:20:33,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-08 19:20:33,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-08 19:20:33,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-08 19:20:33,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-08 19:20:33,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:20:33,512 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 19:20:33,520 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 19:20:33,520 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:20:33,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:20:33 BasicIcfg [2024-11-08 19:20:33,533 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:20:33,534 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:20:33,534 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:20:33,534 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:20:33,535 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:30" (3/4) ... [2024-11-08 19:20:33,537 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:20:33,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-08 19:20:33,549 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-11-08 19:20:33,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 19:20:33,552 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 19:20:33,552 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 19:20:33,671 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 19:20:33,674 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 19:20:33,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:20:33,675 INFO L158 Benchmark]: Toolchain (without parser) took 4978.98ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 99.8MB in the beginning and 96.1MB in the end (delta: 3.7MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,676 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory was 101.7MB in the beginning and 101.6MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:20:33,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.57ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 76.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.95ms. Allocated memory is still 132.1MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,677 INFO L158 Benchmark]: Boogie Preprocessor took 66.11ms. Allocated memory is still 132.1MB. Free memory was 74.8MB in the beginning and 72.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,681 INFO L158 Benchmark]: RCFGBuilder took 785.42ms. Allocated memory is still 132.1MB. Free memory was 72.6MB in the beginning and 100.5MB in the end (delta: -27.9MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,682 INFO L158 Benchmark]: TraceAbstraction took 3131.13ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 99.8MB in the beginning and 100.3MB in the end (delta: -479.0kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,682 INFO L158 Benchmark]: Witness Printer took 140.78ms. Allocated memory is still 165.7MB. Free memory was 100.3MB in the beginning and 96.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:20:33,685 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 132.1MB. Free memory was 101.7MB in the beginning and 101.6MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.57ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 76.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.95ms. Allocated memory is still 132.1MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.11ms. Allocated memory is still 132.1MB. Free memory was 74.8MB in the beginning and 72.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.42ms. Allocated memory is still 132.1MB. Free memory was 72.6MB in the beginning and 100.5MB in the end (delta: -27.9MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3131.13ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 99.8MB in the beginning and 100.3MB in the end (delta: -479.0kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 140.78ms. Allocated memory is still 165.7MB. Free memory was 100.3MB in the beginning and 96.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 26 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 19:20:33,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525c2107-08d2-4dbf-9177-7dc3b56f959d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE