./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:21:47,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:21:47,551 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:21:47,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:21:47,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:21:47,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:21:47,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:21:47,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:21:47,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:21:47,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:21:47,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:21:47,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:21:47,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:21:47,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:21:47,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:21:47,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:21:47,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:21:47,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:21:47,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:21:47,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:21:47,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:21:47,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:21:47,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:21:47,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:21:47,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:21:47,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:21:47,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:21:47,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:21:47,598 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:21:47,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:21:47,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:21:47,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:21:47,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:21:47,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:21:47,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:21:47,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:21:47,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:21:47,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:21:47,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:21:47,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:21:47,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:21:47,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:21:47,602 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-16 19:21:47,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:21:47,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:21:47,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:21:47,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:21:47,929 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:21:47,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-16 19:21:49,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:21:49,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:21:49,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-16 19:21:49,694 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bcdd0b1e/4c6acbba8a474faf9d8fb1301b00d08e/FLAG1eb7c2f58 [2024-11-16 19:21:49,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bcdd0b1e/4c6acbba8a474faf9d8fb1301b00d08e [2024-11-16 19:21:49,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:21:49,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:21:49,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:21:49,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:21:49,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:21:49,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:21:49" (1/1) ... [2024-11-16 19:21:49,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee1b65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:49, skipping insertion in model container [2024-11-16 19:21:49,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:21:49" (1/1) ... [2024-11-16 19:21:50,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:21:50,462 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-16 19:21:50,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:21:50,564 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:21:50,609 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-16 19:21:50,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:21:50,689 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:21:50,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50 WrapperNode [2024-11-16 19:21:50,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:21:50,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:21:50,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:21:50,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:21:50,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,760 INFO L138 Inliner]: procedures = 280, calls = 98, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 397 [2024-11-16 19:21:50,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:21:50,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:21:50,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:21:50,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:21:50,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,778 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,817 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 2, 28, 5, 5, 2, 5, 5, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 0, 5, 5, 0, 5, 5, 0]. The 17 writes are split as follows [0, 1, 14, 0, 0, 1, 0, 0, 1]. [2024-11-16 19:21:50,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,837 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:21:50,869 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:21:50,870 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:21:50,870 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:21:50,871 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (1/1) ... [2024-11-16 19:21:50,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:21:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:21:50,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:21:50,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:21:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:21:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:21:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:21:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:21:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-16 19:21:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 19:21:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 19:21:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:21:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:21:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:21:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 19:21:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-16 19:21:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 19:21:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 19:21:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:21:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:21:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:21:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:21:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:21:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:21:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:21:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 19:21:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-16 19:21:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 19:21:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:21:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:21:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:21:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:21:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:21:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-16 19:21:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-16 19:21:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 19:21:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 19:21:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:21:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:21:50,988 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:21:51,245 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:21:51,247 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:21:51,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 19:21:51,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 19:21:51,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 19:21:51,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 19:21:51,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2024-11-16 19:21:51,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2024-11-16 19:21:51,916 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:21:51,916 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:21:52,238 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:21:52,238 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:21:52,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:21:52 BoogieIcfgContainer [2024-11-16 19:21:52,239 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:21:52,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:21:52,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:21:52,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:21:52,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:21:49" (1/3) ... [2024-11-16 19:21:52,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b300a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:21:52, skipping insertion in model container [2024-11-16 19:21:52,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:21:50" (2/3) ... [2024-11-16 19:21:52,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b300a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:21:52, skipping insertion in model container [2024-11-16 19:21:52,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:21:52" (3/3) ... [2024-11-16 19:21:52,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-16 19:21:52,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:21:52,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:21:52,266 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:21:52,407 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-16 19:21:52,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 173 transitions, 385 flow [2024-11-16 19:21:52,647 INFO L124 PetriNetUnfolderBase]: 174/682 cut-off events. [2024-11-16 19:21:52,647 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-16 19:21:52,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 682 events. 174/682 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4108 event pairs, 0 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 353. Up to 16 conditions per place. [2024-11-16 19:21:52,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 173 transitions, 385 flow [2024-11-16 19:21:52,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 173 transitions, 385 flow [2024-11-16 19:21:52,691 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:52,699 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;@6de7def3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:52,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 19:21:52,707 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:52,708 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-16 19:21:52,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:21:52,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:52,709 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-16 19:21:52,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:21:52,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2041982395, now seen corresponding path program 1 times [2024-11-16 19:21:52,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:52,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880969135] [2024-11-16 19:21:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:52,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:52,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:53,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:53,047 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:53,048 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-16 19:21:53,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-16 19:21:53,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-16 19:21:53,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-16 19:21:53,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-16 19:21:53,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-16 19:21:53,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-16 19:21:53,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:21:53,052 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:53,061 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:53,061 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 19:21:53,190 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-16 19:21:53,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 294 transitions, 672 flow [2024-11-16 19:21:54,033 INFO L124 PetriNetUnfolderBase]: 1160/3568 cut-off events. [2024-11-16 19:21:54,034 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-16 19:21:54,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4216 conditions, 3568 events. 1160/3568 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 27939 event pairs, 11 based on Foata normal form. 0/2692 useless extension candidates. Maximal degree in co-relation 2323. Up to 192 conditions per place. [2024-11-16 19:21:54,119 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 294 transitions, 672 flow [2024-11-16 19:21:54,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 294 transitions, 672 flow [2024-11-16 19:21:54,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:21:54,236 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;@6de7def3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:21:54,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-16 19:21:54,247 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:21:54,247 INFO L124 PetriNetUnfolderBase]: 14/92 cut-off events. [2024-11-16 19:21:54,247 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:21:54,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:21:54,248 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-16 19:21:54,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-16 19:21:54,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:21:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash 447831378, now seen corresponding path program 1 times [2024-11-16 19:21:54,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:21:54,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765469361] [2024-11-16 19:21:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:21:54,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:21:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:54,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:21:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:21:54,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:21:54,421 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:21:54,421 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-16 19:21:54,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-16 19:21:54,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-16 19:21:54,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-16 19:21:54,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-16 19:21:54,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-16 19:21:54,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-16 19:21:54,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-16 19:21:54,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-16 19:21:54,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:21:54,425 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:21:54,426 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:21:54,426 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 19:21:54,562 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-11-16 19:21:54,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 415 transitions, 965 flow [2024-11-16 19:22:01,114 INFO L124 PetriNetUnfolderBase]: 9052/20596 cut-off events. [2024-11-16 19:22:01,114 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2024-11-16 19:22:01,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27707 conditions, 20596 events. 9052/20596 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 181709 event pairs, 512 based on Foata normal form. 0/16328 useless extension candidates. Maximal degree in co-relation 14243. Up to 2304 conditions per place. [2024-11-16 19:22:01,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 415 transitions, 965 flow [2024-11-16 19:22:02,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 415 transitions, 965 flow [2024-11-16 19:22:02,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:22:02,330 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;@6de7def3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:22:02,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-16 19:22:02,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:22:02,513 INFO L124 PetriNetUnfolderBase]: 36/224 cut-off events. [2024-11-16 19:22:02,513 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-16 19:22:02,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:22:02,514 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-16 19:22:02,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-16 19:22:02,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:22:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1284399174, now seen corresponding path program 1 times [2024-11-16 19:22:02,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:22:02,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820619151] [2024-11-16 19:22:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:22:02,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:22:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:22:02,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:22:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:22:02,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:22:02,659 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:22:02,660 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-16 19:22:02,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-11-16 19:22:02,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-11-16 19:22:02,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-11-16 19:22:02,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-11-16 19:22:02,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-11-16 19:22:02,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-11-16 19:22:02,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-11-16 19:22:02,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-11-16 19:22:02,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-11-16 19:22:02,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-11-16 19:22:02,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:22:02,663 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:22:02,663 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:22:02,663 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 19:22:02,806 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-11-16 19:22:02,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 536 transitions, 1264 flow