./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --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_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef6104579cd39e76c5b76a234377fbd5b9383c9dc087b8831335b366ec07a2a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:19:50,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:19:51,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:19:51,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:19:51,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:19:51,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:19:51,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:19:51,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:19:51,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:19:51,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:19:51,077 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:19:51,077 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:19:51,077 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:19:51,078 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:19:51,078 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:19:51,079 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:19:51,079 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:19:51,079 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:19:51,080 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:19:51,080 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:19:51,080 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:19:51,081 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:19:51,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:19:51,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:19:51,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:19:51,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:19:51,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:19:51,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:19:51,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:19:51,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:19:51,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:19:51,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:19:51,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:19:51,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:19:51,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:19:51,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:19:51,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:19:51,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:19:51,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:19:51,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:19:51,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:19:51,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:19:51,089 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:19:51,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:19:51,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:19:51,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:19:51,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:19:51,090 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef6104579cd39e76c5b76a234377fbd5b9383c9dc087b8831335b366ec07a2a3 [2024-11-09 05:19:51,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:19:51,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:19:51,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:19:51,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:19:51,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:19:51,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c Unable to find full path for "g++" [2024-11-09 05:19:53,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:19:54,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:19:54,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2024-11-09 05:19:54,195 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/data/aaa8726db/8ebca707bd3d495485572c310f22f98d/FLAG85cd709a0 [2024-11-09 05:19:54,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/data/aaa8726db/8ebca707bd3d495485572c310f22f98d [2024-11-09 05:19:54,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:19:54,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:19:54,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:19:54,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:19:54,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:19:54,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d66dfb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54, skipping insertion in model container [2024-11-09 05:19:54,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,277 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:19:54,614 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_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[5088,5101] [2024-11-09 05:19:54,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:19:54,636 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:19:54,709 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_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[5088,5101] [2024-11-09 05:19:54,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:19:54,736 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:19:54,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54 WrapperNode [2024-11-09 05:19:54,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:19:54,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:19:54,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:19:54,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:19:54,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,828 INFO L138 Inliner]: procedures = 20, calls = 36, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 365 [2024-11-09 05:19:54,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:19:54,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:19:54,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:19:54,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:19:54,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:19:54,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:19:54,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:19:54,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:19:54,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (1/1) ... [2024-11-09 05:19:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:19:54,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:55,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:19:55,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1635b6-7e55-4305-af40-d3cbd1c3eb62/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:19:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:19:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 05:19:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 05:19:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 05:19:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 05:19:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 05:19:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 05:19:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 05:19:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 05:19:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:19:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:19:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:19:55,118 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 05:19:55,301 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:19:55,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:19:56,089 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:19:56,090 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:19:56,577 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:19:56,579 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:19:56,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:19:56 BoogieIcfgContainer [2024-11-09 05:19:56,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:19:56,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:19:56,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:19:56,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:19:56,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:19:54" (1/3) ... [2024-11-09 05:19:56,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78136e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:19:56, skipping insertion in model container [2024-11-09 05:19:56,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:19:54" (2/3) ... [2024-11-09 05:19:56,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78136e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:19:56, skipping insertion in model container [2024-11-09 05:19:56,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:19:56" (3/3) ... [2024-11-09 05:19:56,599 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2024-11-09 05:19:56,623 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:19:56,623 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:19:56,623 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:19:56,864 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 05:19:56,921 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 135 places, 134 transitions, 296 flow [2024-11-09 05:20:12,577 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 345291 states, 345290 states have (on average 4.851565350864491) internal successors, (1675197), 345290 states have internal predecessors, (1675197), 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) [2024-11-09 05:20:12,640 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:20:12,648 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=FINITE_AUTOMATA, 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;@140d337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:20:12,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 05:20:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 345291 states, 345290 states have (on average 4.851565350864491) internal successors, (1675197), 345290 states have internal predecessors, (1675197), 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) [2024-11-09 05:20:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 05:20:16,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:16,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:16,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 05:20:16,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1522402299, now seen corresponding path program 1 times [2024-11-09 05:20:16,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737202450] [2024-11-09 05:20:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:16,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:16,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737202450] [2024-11-09 05:20:16,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737202450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:16,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:16,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754794855] [2024-11-09 05:20:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:16,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:17,770 INFO L87 Difference]: Start difference. First operand has 345291 states, 345290 states have (on average 4.851565350864491) internal successors, (1675197), 345290 states have internal predecessors, (1675197), 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) Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-11-09 05:20:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:29,656 INFO L93 Difference]: Finished difference Result 523319 states and 2502711 transitions. [2024-11-09 05:20:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:29,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) Word has length 105 [2024-11-09 05:20:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:35,372 INFO L225 Difference]: With dead ends: 523319 [2024-11-09 05:20:35,372 INFO L226 Difference]: Without dead ends: 345291 [2024-11-09 05:20:35,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:35,825 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 63 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:35,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 210 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:20:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345291 states.