./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU --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 7a9379df521a7077d18fd2276dc35da388f77854d23421e689a681d711c31769 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:40,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:40,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:06:40,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:40,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:40,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:40,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:40,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:40,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:40,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:40,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:40,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:40,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:40,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:40,540 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:40,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:40,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:40,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:40,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:40,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:40,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:40,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:40,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:40,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:40,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:40,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:40,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:40,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:40,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:40,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:40,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:40,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:40,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:40,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:40,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:40,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:40,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:40,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:40,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:40,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:40,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:40,553 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:40,554 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_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a9379df521a7077d18fd2276dc35da388f77854d23421e689a681d711c31769 [2024-10-31 22:06:40,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:40,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:40,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:40,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:40,962 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:40,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i Unable to find full path for "g++" [2024-10-31 22:06:43,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:43,654 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:43,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i [2024-10-31 22:06:43,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/data/b93d8d09f/cacb7e3cd7994fac910f8bcb6d20d825/FLAGa262ee78b [2024-10-31 22:06:43,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/data/b93d8d09f/cacb7e3cd7994fac910f8bcb6d20d825 [2024-10-31 22:06:43,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:43,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:43,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:43,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:43,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:43,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:43" (1/1) ... [2024-10-31 22:06:43,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b723e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:43, skipping insertion in model container [2024-10-31 22:06:43,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:43" (1/1) ... [2024-10-31 22:06:44,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:44,228 WARN L251 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_81c2926d-db24-4406-a966-cfc03bb5a950/sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i[995,1008] [2024-10-31 22:06:44,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:44,584 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:44,600 WARN L251 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_81c2926d-db24-4406-a966-cfc03bb5a950/sv-benchmarks/c/pthread-wmm/safe002_power.oepc.i[995,1008] [2024-10-31 22:06:44,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:44,749 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:44,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44 WrapperNode [2024-10-31 22:06:44,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:44,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:44,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:44,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:44,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,812 INFO L138 Inliner]: procedures = 175, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2024-10-31 22:06:44,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:44,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:44,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:44,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:44,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,885 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 11 writes are split as follows [0, 11]. [2024-10-31 22:06:44,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:44,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:44,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:44,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:44,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (1/1) ... [2024-10-31 22:06:44,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:44,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:44,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:06:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:06:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:06:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:06:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:06:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:06:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:06:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:06:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:06:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:06:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:06:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:45,024 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:45,244 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:45,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:45,962 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:45,963 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:46,555 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:46,555 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:06:46,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:46 BoogieIcfgContainer [2024-10-31 22:06:46,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:46,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:46,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:46,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:46,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:43" (1/3) ... [2024-10-31 22:06:46,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d686e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:46, skipping insertion in model container [2024-10-31 22:06:46,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:44" (2/3) ... [2024-10-31 22:06:46,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d686e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:46, skipping insertion in model container [2024-10-31 22:06:46,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:46" (3/3) ... [2024-10-31 22:06:46,572 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.oepc.i [2024-10-31 22:06:46,596 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:46,597 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:06:46,597 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:46,684 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:06:46,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-10-31 22:06:46,768 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-10-31 22:06:46,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:46,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-10-31 22:06:46,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-10-31 22:06:46,777 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-10-31 22:06:46,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:46,798 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;@6aafa0f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:46,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:06:46,821 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:46,823 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-31 22:06:46,823 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:46,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:46,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:46,824 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 1 more)] === [2024-10-31 22:06:46,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1722480578, now seen corresponding path program 1 times [2024-10-31 22:06:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:46,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244442554] [2024-10-31 22:06:46,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:46,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:47,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:47,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244442554] [2024-10-31 22:06:47,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244442554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:47,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:47,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:47,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803467173] [2024-10-31 22:06:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:47,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:47,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:47,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:47,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:47,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:47,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-10-31 22:06:47,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:47,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:47,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:49,238 INFO L124 PetriNetUnfolderBase]: 1041/1733 cut-off events. [2024-10-31 22:06:49,239 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:06:49,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1733 events. 1041/1733 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10508 event pairs, 203 based on Foata normal form. 60/1784 useless extension candidates. Maximal degree in co-relation 3335. Up to 1065 conditions per place. [2024-10-31 22:06:49,260 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 27 selfloop transitions, 2 changer transitions 31/71 dead transitions. [2024-10-31 22:06:49,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 71 transitions, 271 flow [2024-10-31 22:06:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:49,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-10-31 22:06:49,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6015037593984962 [2024-10-31 22:06:49,278 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 160 transitions. [2024-10-31 22:06:49,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 71 transitions, 271 flow [2024-10-31 22:06:49,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 268 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:06:49,289 INFO L231 Difference]: Finished difference. Result has 50 places, 32 transitions, 86 flow [2024-10-31 22:06:49,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=86, PETRI_PLACES=50, PETRI_TRANSITIONS=32} [2024-10-31 22:06:49,296 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-10-31 22:06:49,296 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 86 flow [2024-10-31 22:06:49,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-10-31 22:06:49,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:49,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:49,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:49,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:49,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:49,300 INFO L85 PathProgramCache]: Analyzing trace with hash -157410141, now seen corresponding path program 1 times [2024-10-31 22:06:49,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:49,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424139051] [2024-10-31 22:06:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:49,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:50,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424139051] [2024-10-31 22:06:50,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424139051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:50,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:50,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:50,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260367786] [2024-10-31 22:06:50,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:50,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:50,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:50,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:50,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:50,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:50,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 32 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-10-31 22:06:50,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:50,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:50,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:50,900 INFO L124 PetriNetUnfolderBase]: 879/1567 cut-off events. [2024-10-31 22:06:50,901 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2024-10-31 22:06:50,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3318 conditions, 1567 events. 879/1567 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 9455 event pairs, 297 based on Foata normal form. 48/1598 useless extension candidates. Maximal degree in co-relation 3303. Up to 869 conditions per place. [2024-10-31 22:06:50,915 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 33 selfloop transitions, 2 changer transitions 31/77 dead transitions. [2024-10-31 22:06:50,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 77 transitions, 325 flow [2024-10-31 22:06:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2024-10-31 22:06:50,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6240601503759399 [2024-10-31 22:06:50,918 INFO L175 Difference]: Start difference. First operand has 50 places, 32 transitions, 86 flow. Second operand 7 states and 166 transitions. [2024-10-31 22:06:50,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 77 transitions, 325 flow [2024-10-31 22:06:50,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 303 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:50,932 INFO L231 Difference]: Finished difference. Result has 51 places, 32 transitions, 90 flow [2024-10-31 22:06:50,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=90, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2024-10-31 22:06:50,933 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-10-31 22:06:50,933 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 90 flow [2024-10-31 22:06:50,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-10-31 22:06:50,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:50,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:50,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:50,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:50,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:50,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1743765628, now seen corresponding path program 1 times [2024-10-31 22:06:50,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:50,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53614270] [2024-10-31 22:06:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:50,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53614270] [2024-10-31 22:06:51,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53614270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:51,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376278017] [2024-10-31 22:06:51,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:51,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:51,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:51,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:51,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 90 flow. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-31 22:06:51,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:51,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:52,948 INFO L124 PetriNetUnfolderBase]: 1041/1749 cut-off events. [2024-10-31 22:06:52,948 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-10-31 22:06:52,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 1749 events. 1041/1749 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10782 event pairs, 157 based on Foata normal form. 32/1772 useless extension candidates. Maximal degree in co-relation 3963. Up to 678 conditions per place. [2024-10-31 22:06:52,959 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 32 selfloop transitions, 3 changer transitions 30/76 dead transitions. [2024-10-31 22:06:52,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 76 transitions, 333 flow [2024-10-31 22:06:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 179 transitions. [2024-10-31 22:06:52,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5888157894736842 [2024-10-31 22:06:52,962 INFO L175 Difference]: Start difference. First operand has 51 places, 32 transitions, 90 flow. Second operand 8 states and 179 transitions. [2024-10-31 22:06:52,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 76 transitions, 333 flow [2024-10-31 22:06:52,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 309 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:52,971 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 106 flow [2024-10-31 22:06:52,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2024-10-31 22:06:52,972 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-10-31 22:06:52,972 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 106 flow [2024-10-31 22:06:52,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-31 22:06:52,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:52,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:52,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:52,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:52,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:52,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1382484813, now seen corresponding path program 1 times [2024-10-31 22:06:52,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:52,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114504663] [2024-10-31 22:06:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:54,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:54,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114504663] [2024-10-31 22:06:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114504663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:54,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:54,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:54,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898548096] [2024-10-31 22:06:54,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:54,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:54,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:54,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:54,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:54,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:54,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 106 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:54,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:54,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:55,147 INFO L124 PetriNetUnfolderBase]: 699/1236 cut-off events. [2024-10-31 22:06:55,148 INFO L125 PetriNetUnfolderBase]: For 849/849 co-relation queries the response was YES. [2024-10-31 22:06:55,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 1236 events. 699/1236 cut-off events. For 849/849 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7100 event pairs, 236 based on Foata normal form. 24/1257 useless extension candidates. Maximal degree in co-relation 3170. Up to 835 conditions per place. [2024-10-31 22:06:55,158 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 31 selfloop transitions, 12 changer transitions 14/68 dead transitions. [2024-10-31 22:06:55,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 68 transitions, 338 flow [2024-10-31 22:06:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2024-10-31 22:06:55,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5864661654135338 [2024-10-31 22:06:55,160 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 106 flow. Second operand 7 states and 156 transitions. [2024-10-31 22:06:55,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 68 transitions, 338 flow [2024-10-31 22:06:55,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 318 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:55,168 INFO L231 Difference]: Finished difference. Result has 54 places, 41 transitions, 170 flow [2024-10-31 22:06:55,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=170, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2024-10-31 22:06:55,170 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-10-31 22:06:55,171 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 170 flow [2024-10-31 22:06:55,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:55,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:55,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:55,173 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:55,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash 534119497, now seen corresponding path program 2 times [2024-10-31 22:06:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:55,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784686625] [2024-10-31 22:06:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:57,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:57,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784686625] [2024-10-31 22:06:57,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784686625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:57,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:57,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:06:57,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016505795] [2024-10-31 22:06:57,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:57,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:57,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:57,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:57,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:57,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:57,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 170 flow. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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) [2024-10-31 22:06:57,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:57,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:57,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:58,197 INFO L124 PetriNetUnfolderBase]: 958/1756 cut-off events. [2024-10-31 22:06:58,198 INFO L125 PetriNetUnfolderBase]: For 1610/1610 co-relation queries the response was YES. [2024-10-31 22:06:58,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4971 conditions, 1756 events. 958/1756 cut-off events. For 1610/1610 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11343 event pairs, 96 based on Foata normal form. 24/1759 useless extension candidates. Maximal degree in co-relation 4953. Up to 733 conditions per place. [2024-10-31 22:06:58,212 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 52 selfloop transitions, 18 changer transitions 14/95 dead transitions. [2024-10-31 22:06:58,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 95 transitions, 559 flow [2024-10-31 22:06:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-10-31 22:06:58,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6085526315789473 [2024-10-31 22:06:58,214 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 170 flow. Second operand 8 states and 185 transitions. [2024-10-31 22:06:58,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 95 transitions, 559 flow [2024-10-31 22:06:58,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 95 transitions, 544 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-31 22:06:58,231 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 322 flow [2024-10-31 22:06:58,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=322, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-10-31 22:06:58,232 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 22:06:58,232 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 322 flow [2024-10-31 22:06:58,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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) [2024-10-31 22:06:58,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:58,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:58,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:58,233 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:58,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2016673643, now seen corresponding path program 3 times [2024-10-31 22:06:58,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258610851] [2024-10-31 22:06:58,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:59,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:59,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258610851] [2024-10-31 22:06:59,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258610851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:59,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:59,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:59,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107635545] [2024-10-31 22:06:59,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:59,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:59,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:59,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-10-31 22:06:59,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 322 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:59,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:59,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-10-31 22:06:59,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:00,857 INFO L124 PetriNetUnfolderBase]: 919/1618 cut-off events. [2024-10-31 22:07:00,857 INFO L125 PetriNetUnfolderBase]: For 3021/3025 co-relation queries the response was YES. [2024-10-31 22:07:00,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5392 conditions, 1618 events. 919/1618 cut-off events. For 3021/3025 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10100 event pairs, 189 based on Foata normal form. 26/1634 useless extension candidates. Maximal degree in co-relation 5370. Up to 983 conditions per place. [2024-10-31 22:07:00,874 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 43 selfloop transitions, 16 changer transitions 22/92 dead transitions. [2024-10-31 22:07:00,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 92 transitions, 657 flow [2024-10-31 22:07:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:07:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:07:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 192 transitions. [2024-10-31 22:07:00,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2024-10-31 22:07:00,876 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 322 flow. Second operand 9 states and 192 transitions. [2024-10-31 22:07:00,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 92 transitions, 657 flow [2024-10-31 22:07:00,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 92 transitions, 635 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:00,886 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 360 flow [2024-10-31 22:07:00,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=360, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2024-10-31 22:07:00,888 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2024-10-31 22:07:00,888 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 360 flow [2024-10-31 22:07:00,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:00,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:00,889 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:00,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:07:00,889 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:07:00,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash -314753945, now seen corresponding path program 1 times [2024-10-31 22:07:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607634091] [2024-10-31 22:07:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:01,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607634091] [2024-10-31 22:07:01,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607634091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:01,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:07:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508842185] [2024-10-31 22:07:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:01,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:01,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:01,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:01,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-10-31 22:07:01,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-10-31 22:07:01,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:01,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-10-31 22:07:01,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:02,401 INFO L124 PetriNetUnfolderBase]: 2430/3806 cut-off events. [2024-10-31 22:07:02,401 INFO L125 PetriNetUnfolderBase]: For 9684/9684 co-relation queries the response was YES. [2024-10-31 22:07:02,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12643 conditions, 3806 events. 2430/3806 cut-off events. For 9684/9684 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 22348 event pairs, 262 based on Foata normal form. 196/3991 useless extension candidates. Maximal degree in co-relation 12616. Up to 1937 conditions per place. [2024-10-31 22:07:02,443 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 80 selfloop transitions, 5 changer transitions 1/94 dead transitions. [2024-10-31 22:07:02,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 94 transitions, 839 flow [2024-10-31 22:07:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-31 22:07:02,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6644736842105263 [2024-10-31 22:07:02,445 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 360 flow. Second operand 4 states and 101 transitions. [2024-10-31 22:07:02,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 94 transitions, 839 flow [2024-10-31 22:07:02,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 742 flow, removed 19 selfloop flow, removed 10 redundant places. [2024-10-31 22:07:02,466 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 330 flow [2024-10-31 22:07:02,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-10-31 22:07:02,467 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 22:07:02,468 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 330 flow [2024-10-31 22:07:02,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-10-31 22:07:02,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:02,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:02,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:07:02,469 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:07:02,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash -269445230, now seen corresponding path program 1 times [2024-10-31 22:07:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863849373] [2024-10-31 22:07:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:02,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:02,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863849373] [2024-10-31 22:07:02,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863849373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:02,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:02,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:07:02,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762915562] [2024-10-31 22:07:02,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:02,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:07:02,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:07:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:07:02,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-10-31 22:07:02,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-10-31 22:07:02,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:02,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-10-31 22:07:02,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:03,739 INFO L124 PetriNetUnfolderBase]: 1704/2726 cut-off events. [2024-10-31 22:07:03,740 INFO L125 PetriNetUnfolderBase]: For 4985/4985 co-relation queries the response was YES. [2024-10-31 22:07:03,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9003 conditions, 2726 events. 1704/2726 cut-off events. For 4985/4985 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 14656 event pairs, 114 based on Foata normal form. 166/2882 useless extension candidates. Maximal degree in co-relation 8981. Up to 929 conditions per place. [2024-10-31 22:07:03,775 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 83 selfloop transitions, 8 changer transitions 1/100 dead transitions. [2024-10-31 22:07:03,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 100 transitions, 778 flow [2024-10-31 22:07:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:07:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:07:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-10-31 22:07:03,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6631578947368421 [2024-10-31 22:07:03,778 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 330 flow. Second operand 5 states and 126 transitions. [2024-10-31 22:07:03,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 100 transitions, 778 flow [2024-10-31 22:07:03,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 100 transitions, 734 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-31 22:07:03,788 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 310 flow [2024-10-31 22:07:03,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-10-31 22:07:03,789 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-10-31 22:07:03,789 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 310 flow [2024-10-31 22:07:03,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-10-31 22:07:03,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:03,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:03,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:07:03,790 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:07:03,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:03,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1673445209, now seen corresponding path program 1 times [2024-10-31 22:07:03,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:03,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882859013] [2024-10-31 22:07:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:03,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:04,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:04,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882859013] [2024-10-31 22:07:04,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882859013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:04,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:04,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:07:04,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701222536] [2024-10-31 22:07:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:04,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:07:04,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:04,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:04,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-10-31 22:07:04,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-31 22:07:04,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:04,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-10-31 22:07:04,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:05,029 INFO L124 PetriNetUnfolderBase]: 1057/1709 cut-off events. [2024-10-31 22:07:05,029 INFO L125 PetriNetUnfolderBase]: For 3392/3392 co-relation queries the response was YES. [2024-10-31 22:07:05,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5863 conditions, 1709 events. 1057/1709 cut-off events. For 3392/3392 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8418 event pairs, 83 based on Foata normal form. 84/1783 useless extension candidates. Maximal degree in co-relation 5841. Up to 656 conditions per place. [2024-10-31 22:07:05,041 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 71 selfloop transitions, 11 changer transitions 1/91 dead transitions. [2024-10-31 22:07:05,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 91 transitions, 678 flow [2024-10-31 22:07:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:07:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-10-31 22:07:05,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2024-10-31 22:07:05,043 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 310 flow. Second operand 6 states and 134 transitions. [2024-10-31 22:07:05,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 91 transitions, 678 flow [2024-10-31 22:07:05,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 583 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-10-31 22:07:05,052 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 265 flow [2024-10-31 22:07:05,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-10-31 22:07:05,054 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 22:07:05,054 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 265 flow [2024-10-31 22:07:05,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-31 22:07:05,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:05,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:05,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:07:05,055 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:07:05,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1623765748, now seen corresponding path program 1 times [2024-10-31 22:07:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:05,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211923360] [2024-10-31 22:07:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:05,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:05,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211923360] [2024-10-31 22:07:05,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211923360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:05,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:05,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:07:05,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436337414] [2024-10-31 22:07:05,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:05,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:07:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:05,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-10-31 22:07:05,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-31 22:07:05,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:05,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-10-31 22:07:05,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:06,263 INFO L124 PetriNetUnfolderBase]: 997/1875 cut-off events. [2024-10-31 22:07:06,263 INFO L125 PetriNetUnfolderBase]: For 2001/2019 co-relation queries the response was YES. [2024-10-31 22:07:06,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5343 conditions, 1875 events. 997/1875 cut-off events. For 2001/2019 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11320 event pairs, 205 based on Foata normal form. 8/1836 useless extension candidates. Maximal degree in co-relation 5324. Up to 704 conditions per place. [2024-10-31 22:07:06,276 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 30 selfloop transitions, 1 changer transitions 38/84 dead transitions. [2024-10-31 22:07:06,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 545 flow [2024-10-31 22:07:06,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:07:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2024-10-31 22:07:06,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5394736842105263 [2024-10-31 22:07:06,278 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 265 flow. Second operand 6 states and 123 transitions. [2024-10-31 22:07:06,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 545 flow [2024-10-31 22:07:06,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 481 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-31 22:07:06,290 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 171 flow [2024-10-31 22:07:06,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2024-10-31 22:07:06,291 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-10-31 22:07:06,292 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 171 flow [2024-10-31 22:07:06,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-10-31 22:07:06,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:06,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:06,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:07:06,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:07:06,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1090611954, now seen corresponding path program 2 times [2024-10-31 22:07:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690582496] [2024-10-31 22:07:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:06,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:06,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:06,861 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:07:06,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-31 22:07:06,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-31 22:07:06,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-31 22:07:06,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-31 22:07:06,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:07:06,872 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:07,042 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:07:07,043 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:07:07,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:07:07 BasicIcfg [2024-10-31 22:07:07,052 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:07:07,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:07,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:07,057 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:07,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:46" (3/4) ... [2024-10-31 22:07:07,058 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:07:07,206 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:07,211 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:07,211 INFO L158 Benchmark]: Toolchain (without parser) took 23275.47ms. Allocated memory was 146.8MB in the beginning and 683.7MB in the end (delta: 536.9MB). Free memory was 106.9MB in the beginning and 370.0MB in the end (delta: -263.1MB). Peak memory consumption was 276.9MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,212 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 146.8MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:07,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.13ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 77.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.47ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 74.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,212 INFO L158 Benchmark]: Boogie Preprocessor took 119.62ms. Allocated memory is still 146.8MB. Free memory was 74.4MB in the beginning and 68.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,213 INFO L158 Benchmark]: RCFGBuilder took 1622.91ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 68.6MB in the beginning and 140.5MB in the end (delta: -71.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,213 INFO L158 Benchmark]: TraceAbstraction took 20492.35ms. Allocated memory was 207.6MB in the beginning and 683.7MB in the end (delta: 476.1MB). Free memory was 139.4MB in the beginning and 389.9MB in the end (delta: -250.5MB). Peak memory consumption was 224.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,213 INFO L158 Benchmark]: Witness Printer took 157.67ms. Allocated memory is still 683.7MB. Free memory was 389.9MB in the beginning and 370.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:07:07,217 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 146.8MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.13ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 77.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.47ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 74.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.62ms. Allocated memory is still 146.8MB. Free memory was 74.4MB in the beginning and 68.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1622.91ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 68.6MB in the beginning and 140.5MB in the end (delta: -71.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * TraceAbstraction took 20492.35ms. Allocated memory was 207.6MB in the beginning and 683.7MB in the end (delta: 476.1MB). Free memory was 139.4MB in the beginning and 389.9MB in the end (delta: -250.5MB). Peak memory consumption was 224.5MB. Max. memory is 16.1GB. * Witness Printer took 157.67ms. Allocated memory is still 683.7MB. Free memory was 389.9MB in the beginning and 370.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L713] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L714] 0 int __unbuffered_p0_EAX$mem_tmp; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L723] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L724] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L725] 0 int __unbuffered_p0_EAX$w_buff0; [L726] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L727] 0 int __unbuffered_p0_EAX$w_buff1; [L728] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L730] 0 int __unbuffered_p0_EBX = 0; [L732] 0 int __unbuffered_p2_EAX = 0; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L738] 0 int y = 0; [L739] 0 _Bool y$flush_delayed; [L740] 0 int y$mem_tmp; [L741] 0 _Bool y$r_buff0_thd0; [L742] 0 _Bool y$r_buff0_thd1; [L743] 0 _Bool y$r_buff0_thd2; [L744] 0 _Bool y$r_buff0_thd3; [L745] 0 _Bool y$r_buff1_thd0; [L746] 0 _Bool y$r_buff1_thd1; [L747] 0 _Bool y$r_buff1_thd2; [L748] 0 _Bool y$r_buff1_thd3; [L749] 0 _Bool y$read_delayed; [L750] 0 int *y$read_delayed_var; [L751] 0 int y$w_buff0; [L752] 0 _Bool y$w_buff0_used; [L753] 0 int y$w_buff1; [L754] 0 _Bool y$w_buff1_used; [L755] 0 _Bool weak$$choice0; [L756] 0 _Bool weak$$choice1; [L757] 0 _Bool weak$$choice2; [L853] 0 pthread_t t1825; [L854] FCALL, FORK 0 pthread_create(&t1825, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1825=-2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L761] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 1 y$flush_delayed = weak$$choice2 [L764] EXPR 1 \read(y) [L764] 1 y$mem_tmp = y [L765] 1 weak$$choice1 = __VERIFIER_nondet_bool() [L766] EXPR 1 !y$w_buff0_used ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y : (weak$$choice1 ? y$w_buff0 : y$w_buff1)) : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y$w_buff1 : y$w_buff0) : (weak$$choice0 ? y$w_buff0 : y)))) [L766] EXPR 1 \read(y) [L766] EXPR 1 !y$w_buff0_used ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y : (weak$$choice1 ? y$w_buff0 : y$w_buff1)) : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y$w_buff1 : y$w_buff0) : (weak$$choice0 ? y$w_buff0 : y)))) [L766] 1 y = !y$w_buff0_used ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y : (weak$$choice1 ? y$w_buff0 : y$w_buff1)) : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y$w_buff1 : y$w_buff0) : (weak$$choice0 ? y$w_buff0 : y)))) [L767] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)))) [L768] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)))) [L769] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? weak$$choice0 || !weak$$choice1 : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? weak$$choice0 : weak$$choice0)))) [L770] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? weak$$choice0 : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L771] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L772] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (y$w_buff0_used && !y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (weak$$choice0 ? y$r_buff1_thd1 : (_Bool)0) : (y$w_buff0_used && y$r_buff1_thd1 && y$w_buff1_used && !y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L773] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L774] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L775] EXPR 1 \read(y) [L775] 1 __unbuffered_p0_EAX = y [L776] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L776] EXPR 1 \read(y) [L776] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L776] 1 y = y$flush_delayed ? y$mem_tmp : y [L777] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L855] 0 pthread_t t1826; [L856] FCALL, FORK 0 pthread_create(&t1826, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1825=-2, t1826=-1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L780] 1 __unbuffered_p0_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L785] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L857] 0 pthread_t t1827; [L858] FCALL, FORK 0 pthread_create(&t1827, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1825=-2, t1826=-1, t1827=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L792] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L795] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L798] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L798] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L798] EXPR 2 \read(y) [L798] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L798] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L798] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L799] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L800] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L801] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L802] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L805] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L812] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L813] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L814] 3 y$flush_delayed = weak$$choice2 [L815] EXPR 3 \read(y) [L815] 3 y$mem_tmp = y [L816] EXPR 3 !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L816] EXPR 3 \read(y) [L816] EXPR 3 !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L816] 3 y = !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L817] 3 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0)) [L818] 3 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1)) [L819] 3 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used)) [L820] 3 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L821] 3 y$r_buff0_thd3 = weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3)) [L822] 3 y$r_buff1_thd3 = weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L823] EXPR 3 \read(y) [L823] 3 __unbuffered_p2_EAX = y [L824] EXPR 3 y$flush_delayed ? y$mem_tmp : y [L824] EXPR 3 y$flush_delayed ? y$mem_tmp : y [L824] 3 y = y$flush_delayed ? y$mem_tmp : y [L825] 3 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L828] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L831] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L831] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L831] EXPR 3 \read(y) [L831] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L831] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L831] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L832] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L833] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L834] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L835] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L838] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L860] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1825=-2, t1826=-1, t1827=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L862] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L862] RET 0 assume_abort_if_not(main$tmp_guard0) [L864] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L864] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L864] EXPR 0 \read(y) [L864] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L864] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L864] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L865] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L866] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L867] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L868] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1825=-2, t1826=-1, t1827=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L871] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L872] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L873] 0 y$flush_delayed = weak$$choice2 [L874] EXPR 0 \read(y) [L874] 0 y$mem_tmp = y [L875] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L875] EXPR 0 \read(y) [L875] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L875] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L876] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L877] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L878] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L879] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L880] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L881] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L883] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L883] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L883] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L883] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L884] EXPR 0 \read(y) [L884] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 1) [L885] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L885] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L885] 0 y = y$flush_delayed ? y$mem_tmp : y [L886] 0 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1825=-2, t1826=-1, t1827=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L888] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] - UnprovableResult [Line: 854]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 62 locations, 4 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: 20.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 501 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 483 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1296 IncrementalHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 13 mSDtfsCounter, 1296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=6, InterpolantAutomatonStates: 67, 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: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:07:07,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2926d-db24-4406-a966-cfc03bb5a950/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE