./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:35:47,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:35:47,456 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:35:47,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:35:47,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:35:47,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:35:47,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:35:47,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:35:47,515 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:35:47,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:35:47,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:35:47,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:35:47,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:35:47,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:35:47,521 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:35:47,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:35:47,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:35:47,522 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:35:47,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:35:47,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:35:47,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:35:47,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:35:47,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:35:47,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:35:47,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:35:47,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:35:47,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:35:47,530 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:35:47,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:35:47,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:35:47,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:35:47,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:35:47,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:35:47,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:35:47,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:35:47,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:35:47,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:35:47,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:35:47,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:35:47,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:35:47,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:35:47,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:35:47,537 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_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-08 16:35:47,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:35:47,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:35:47,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:35:47,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:35:47,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:35:47,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i Unable to find full path for "g++" [2024-11-08 16:35:50,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:35:50,679 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:35:50,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-08 16:35:50,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/data/f5e71817e/68000e167c6c463dbe0830ecba0c6163/FLAG4dcf4fdf2 [2024-11-08 16:35:50,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/data/f5e71817e/68000e167c6c463dbe0830ecba0c6163 [2024-11-08 16:35:50,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:35:50,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:35:50,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:35:50,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:35:50,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:35:50,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:35:50" (1/1) ... [2024-11-08 16:35:50,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6916958c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:50, skipping insertion in model container [2024-11-08 16:35:50,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:35:50" (1/1) ... [2024-11-08 16:35:50,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:35:51,565 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-08 16:35:51,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:35:51,633 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:35:51,694 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2024-11-08 16:35:51,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:35:51,798 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:35:51,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51 WrapperNode [2024-11-08 16:35:51,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:35:51,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:35:51,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:35:51,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:35:51,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,871 INFO L138 Inliner]: procedures = 279, calls = 67, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 212 [2024-11-08 16:35:51,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:35:51,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:35:51,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:35:51,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:35:51,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,921 INFO L175 MemorySlicer]: Split 35 memory accesses to 7 slices as follows [2, 5, 5, 5, 14, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 0, 8, 1, 1]. [2024-11-08 16:35:51,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:35:51,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:35:51,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:35:51,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:35:51,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (1/1) ... [2024-11-08 16:35:51,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:35:51,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:35:51,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:35:52,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_335c0519-19b5-4c20-baee-db52097024ac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:35:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:35:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:35:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:35:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:35:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:35:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:35:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:35:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 16:35:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 16:35:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:35:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:35:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:35:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:35:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 16:35:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 16:35:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 16:35:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:35:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:35:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:35:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 16:35:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:35:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:35:52,038 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:35:52,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:35:52,290 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:35:52,718 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:35:52,718 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:35:53,014 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:35:53,014 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 16:35:53,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:35:53 BoogieIcfgContainer [2024-11-08 16:35:53,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:35:53,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:35:53,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:35:53,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:35:53,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:35:50" (1/3) ... [2024-11-08 16:35:53,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:35:53, skipping insertion in model container [2024-11-08 16:35:53,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:35:51" (2/3) ... [2024-11-08 16:35:53,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1ac57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:35:53, skipping insertion in model container [2024-11-08 16:35:53,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:35:53" (3/3) ... [2024-11-08 16:35:53,029 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-08 16:35:53,051 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:35:53,051 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:35:53,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:35:53,150 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 16:35:53,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 87 transitions, 194 flow [2024-11-08 16:35:53,316 INFO L124 PetriNetUnfolderBase]: 50/197 cut-off events. [2024-11-08 16:35:53,317 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:35:53,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 197 events. 50/197 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 769 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 101. Up to 8 conditions per place. [2024-11-08 16:35:53,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 87 transitions, 194 flow [2024-11-08 16:35:53,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 85 transitions, 184 flow [2024-11-08 16:35:53,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:35:53,361 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;@2bc25775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:35:53,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-08 16:35:53,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:35:53,379 INFO L124 PetriNetUnfolderBase]: 7/40 cut-off events. [2024-11-08 16:35:53,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:35:53,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:35:53,380 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:35:53,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 16:35:53,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:35:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2083616840, now seen corresponding path program 1 times [2024-11-08 16:35:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:35:53,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773631836] [2024-11-08 16:35:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:35:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:35:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:53,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:35:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:53,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:35:53,740 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:35:53,746 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-08 16:35:53,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-08 16:35:53,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-08 16:35:53,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-08 16:35:53,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:35:53,753 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:35:53,757 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:35:53,757 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:35:53,858 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 16:35:53,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 147 transitions, 338 flow [2024-11-08 16:35:54,039 INFO L124 PetriNetUnfolderBase]: 185/639 cut-off events. [2024-11-08 16:35:54,039 INFO L125 PetriNetUnfolderBase]: For 72/84 co-relation queries the response was YES. [2024-11-08 16:35:54,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 639 events. 185/639 cut-off events. For 72/84 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3565 event pairs, 2 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 410. Up to 32 conditions per place. [2024-11-08 16:35:54,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 147 transitions, 338 flow [2024-11-08 16:35:54,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 147 transitions, 338 flow [2024-11-08 16:35:54,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:35:54,066 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;@2bc25775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:35:54,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 16:35:54,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:35:54,082 INFO L124 PetriNetUnfolderBase]: 17/98 cut-off events. [2024-11-08 16:35:54,082 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:35:54,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:35:54,083 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-08 16:35:54,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 16:35:54,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:35:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1151451806, now seen corresponding path program 1 times [2024-11-08 16:35:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:35:54,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481874619] [2024-11-08 16:35:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:35:54,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:35:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:54,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:35:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:54,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:35:54,217 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:35:54,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-08 16:35:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-08 16:35:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-08 16:35:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-08 16:35:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-08 16:35:54,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:35:54,219 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:35:54,224 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:35:54,228 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 16:35:54,332 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-08 16:35:54,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 207 transitions, 486 flow [2024-11-08 16:35:54,863 INFO L124 PetriNetUnfolderBase]: 652/1889 cut-off events. [2024-11-08 16:35:54,864 INFO L125 PetriNetUnfolderBase]: For 419/455 co-relation queries the response was YES. [2024-11-08 16:35:54,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 1889 events. 652/1889 cut-off events. For 419/455 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12580 event pairs, 32 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 1289. Up to 192 conditions per place. [2024-11-08 16:35:54,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 207 transitions, 486 flow [2024-11-08 16:35:54,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 207 transitions, 486 flow [2024-11-08 16:35:54,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:35:54,931 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;@2bc25775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:35:54,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 16:35:54,955 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:35:54,956 INFO L124 PetriNetUnfolderBase]: 33/190 cut-off events. [2024-11-08 16:35:54,957 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-08 16:35:54,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:35:54,958 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-08 16:35:54,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 16:35:54,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:35:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash -15470359, now seen corresponding path program 1 times [2024-11-08 16:35:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:35:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077445374] [2024-11-08 16:35:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:35:54,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:35:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:55,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:35:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:35:55,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:35:55,080 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:35:55,081 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-08 16:35:55,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-08 16:35:55,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-08 16:35:55,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-08 16:35:55,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-08 16:35:55,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-08 16:35:55,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:35:55,083 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:35:55,084 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:35:55,084 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 16:35:55,200 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-08 16:35:55,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 267 transitions, 638 flow [2024-11-08 16:35:57,617 INFO L124 PetriNetUnfolderBase]: 2639/6323 cut-off events. [2024-11-08 16:35:57,617 INFO L125 PetriNetUnfolderBase]: For 2144/2239 co-relation queries the response was YES. [2024-11-08 16:35:57,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8464 conditions, 6323 events. 2639/6323 cut-off events. For 2144/2239 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 47882 event pairs, 626 based on Foata normal form. 0/4914 useless extension candidates. Maximal degree in co-relation 4357. Up to 1024 conditions per place. [2024-11-08 16:35:57,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 267 transitions, 638 flow [2024-11-08 16:35:57,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 267 transitions, 638 flow [2024-11-08 16:35:57,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:35:57,969 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;@2bc25775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:35:57,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 16:35:58,028 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:35:58,029 INFO L124 PetriNetUnfolderBase]: 53/298 cut-off events. [2024-11-08 16:35:58,029 INFO L125 PetriNetUnfolderBase]: For 50/56 co-relation queries the response was YES. [2024-11-08 16:35:58,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:35:58,029 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] [2024-11-08 16:35:58,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 16:35:58,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:35:58,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1425992414, now seen corresponding path program 1 times [2024-11-08 16:35:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:35:58,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270157680] [2024-11-08 16:35:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:35:58,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:35:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:35:58,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:35:58,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:35:58,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270157680] [2024-11-08 16:35:58,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270157680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:35:58,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:35:58,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:35:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325985411] [2024-11-08 16:35:58,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:35:58,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:35:58,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:35:58,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:35:58,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:35:58,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 267 [2024-11-08 16:35:58,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 267 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:35:58,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:35:58,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 267 [2024-11-08 16:35:58,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand