./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:24:10,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:24:10,604 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:24:10,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:24:10,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:24:10,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:24:10,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:24:10,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:24:10,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:24:10,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:24:10,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:24:10,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:24:10,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:24:10,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:24:10,648 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:24:10,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:24:10,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:24:10,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:24:10,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:24:10,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:24:10,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:24:10,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:24:10,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:24:10,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:24:10,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:24:10,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:24:10,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:24:10,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:24:10,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:24:10,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:24:10,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:24:10,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:24:10,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:24:10,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:24:10,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:24:10,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:24:10,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:24:10,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:24:10,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:24:10,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:24:10,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:24:10,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:24:10,660 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2024-10-11 14:24:10,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:24:10,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:24:10,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:24:10,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:24:10,942 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:24:10,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-10-11 14:24:12,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:24:12,770 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:24:12,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-10-11 14:24:12,792 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7e6c0cc89/ce26dbd0d083454f8bced24ddc5ae281/FLAGe18711532 [2024-10-11 14:24:13,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7e6c0cc89/ce26dbd0d083454f8bced24ddc5ae281 [2024-10-11 14:24:13,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:24:13,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:24:13,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:24:13,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:24:13,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:24:13,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19eccdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13, skipping insertion in model container [2024-10-11 14:24:13,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:24:13,562 WARN L248 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_85-list2_racefree.i[47038,47051] [2024-10-11 14:24:13,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:24:13,612 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:24:13,658 WARN L248 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_85-list2_racefree.i[47038,47051] [2024-10-11 14:24:13,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:24:13,741 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:24:13,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13 WrapperNode [2024-10-11 14:24:13,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:24:13,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:24:13,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:24:13,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:24:13,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,827 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 371 [2024-10-11 14:24:13,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:24:13,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:24:13,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:24:13,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:24:13,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,886 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 23, 5, 2, 5, 5, 5, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 0, 5, 5, 5, 0, 0]. The 15 writes are split as follows [0, 12, 0, 1, 0, 0, 0, 1, 1]. [2024-10-11 14:24:13,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:24:13,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:24:13,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:24:13,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:24:13,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (1/1) ... [2024-10-11 14:24:13,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:24:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:24:13,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:24:13,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:24:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:24:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:24:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:24:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:24:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:24:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:24:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:24:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 14:24:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-11 14:24:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-11 14:24:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-11 14:24:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-11 14:24:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:24:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 14:24:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:24:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 14:24:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-11 14:24:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-11 14:24:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-11 14:24:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-11 14:24:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:24:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:24:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:24:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:24:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:24:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:24:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:24:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:24:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:24:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:24:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-10-11 14:24:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:24:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 14:24:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:24:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:24:14,026 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:24:14,249 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:24:14,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:24:14,788 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:24:14,788 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:24:15,097 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:24:15,097 INFO L314 CfgBuilder]: Removed 28 assume(true) statements. [2024-10-11 14:24:15,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:15 BoogieIcfgContainer [2024-10-11 14:24:15,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:24:15,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:24:15,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:24:15,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:24:15,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:13" (1/3) ... [2024-10-11 14:24:15,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c03d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:15, skipping insertion in model container [2024-10-11 14:24:15,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:13" (2/3) ... [2024-10-11 14:24:15,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c03d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:15, skipping insertion in model container [2024-10-11 14:24:15,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:15" (3/3) ... [2024-10-11 14:24:15,108 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2024-10-11 14:24:15,125 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:24:15,126 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 14:24:15,126 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:24:15,227 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-10-11 14:24:15,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2024-10-11 14:24:15,439 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2024-10-11 14:24:15,439 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-11 14:24:15,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 454 events. 120/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2616 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 239. Up to 16 conditions per place. [2024-10-11 14:24:15,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 137 transitions, 313 flow [2024-10-11 14:24:15,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 137 transitions, 313 flow [2024-10-11 14:24:15,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:24:15,485 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;@41f46a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:24:15,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 14:24:15,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:24:15,494 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-10-11 14:24:15,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:24:15,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:24:15,496 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-11 14:24:15,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 14:24:15,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:24:15,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1121559648, now seen corresponding path program 1 times [2024-10-11 14:24:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:24:15,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983985644] [2024-10-11 14:24:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:24:15,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:24:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:15,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 14:24:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:15,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 14:24:15,839 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 14:24:15,840 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-10-11 14:24:15,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-10-11 14:24:15,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-10-11 14:24:15,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-11 14:24:15,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-11 14:24:15,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-10-11 14:24:15,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-10-11 14:24:15,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:24:15,845 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 14:24:15,851 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 14:24:15,852 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 14:24:15,945 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-11 14:24:15,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2024-10-11 14:24:16,508 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2024-10-11 14:24:16,510 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2024-10-11 14:24:16,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 2479 events. 875/2479 cut-off events. For 602/698 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 19718 event pairs, 22 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2024-10-11 14:24:16,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 252 transitions, 588 flow [2024-10-11 14:24:16,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 252 transitions, 588 flow [2024-10-11 14:24:16,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:24:16,611 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;@41f46a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:24:16,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-11 14:24:16,622 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:24:16,623 INFO L124 PetriNetUnfolderBase]: 2/68 cut-off events. [2024-10-11 14:24:16,623 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-11 14:24:16,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:24:16,623 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-10-11 14:24:16,623 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 6 more)] === [2024-10-11 14:24:16,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:24:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -216811223, now seen corresponding path program 1 times [2024-10-11 14:24:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:24:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452917419] [2024-10-11 14:24:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:24:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:24:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:16,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 14:24:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:16,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 14:24:16,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 14:24:16,778 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-11 14:24:16,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-10-11 14:24:16,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-10-11 14:24:16,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-10-11 14:24:16,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-11 14:24:16,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-10-11 14:24:16,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-10-11 14:24:16,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-10-11 14:24:16,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-10-11 14:24:16,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:24:16,780 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 14:24:16,781 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 14:24:16,781 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 14:24:16,951 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-10-11 14:24:16,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 367 transitions, 869 flow [2024-10-11 14:24:22,189 INFO L124 PetriNetUnfolderBase]: 7304/14788 cut-off events. [2024-10-11 14:24:22,190 INFO L125 PetriNetUnfolderBase]: For 7059/7561 co-relation queries the response was YES. [2024-10-11 14:24:22,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21899 conditions, 14788 events. 7304/14788 cut-off events. For 7059/7561 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 123474 event pairs, 1024 based on Foata normal form. 0/12032 useless extension candidates. Maximal degree in co-relation 11039. Up to 2304 conditions per place. [2024-10-11 14:24:22,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 367 transitions, 869 flow [2024-10-11 14:24:22,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 367 transitions, 869 flow [2024-10-11 14:24:22,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:24:22,881 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;@41f46a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:24:22,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-11 14:24:22,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:24:22,988 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-10-11 14:24:22,988 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2024-10-11 14:24:22,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:24:22,989 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-10-11 14:24:22,989 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-10-11 14:24:22,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:24:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -86218433, now seen corresponding path program 1 times [2024-10-11 14:24:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:24:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684272024] [2024-10-11 14:24:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:24:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:24:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:23,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 14:24:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:24:23,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 14:24:23,116 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 14:24:23,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-10-11 14:24:23,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-10-11 14:24:23,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-10-11 14:24:23,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-10-11 14:24:23,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-10-11 14:24:23,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-10-11 14:24:23,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-10-11 14:24:23,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-10-11 14:24:23,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-10-11 14:24:23,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-10-11 14:24:23,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-10-11 14:24:23,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:24:23,121 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 14:24:23,122 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 14:24:23,122 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 14:24:23,282 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-10-11 14:24:23,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 482 transitions, 1156 flow [2024-10-11 14:25:04,993 INFO L124 PetriNetUnfolderBase]: 71437/117079 cut-off events. [2024-10-11 14:25:04,994 INFO L125 PetriNetUnfolderBase]: For 74224/75877 co-relation queries the response was YES. [2024-10-11 14:25:11,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191254 conditions, 117079 events. 71437/117079 cut-off events. For 74224/75877 co-relation queries the response was YES. Maximal size of possible extension queue 2933. Compared 995716 event pairs, 13601 based on Foata normal form. 0/102281 useless extension candidates. Maximal degree in co-relation 91552. Up to 24576 conditions per place. [2024-10-11 14:25:11,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 482 transitions, 1156 flow [2024-10-11 14:25:15,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 482 transitions, 1156 flow [2024-10-11 14:25:15,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:25:15,411 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;@41f46a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:25:15,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-11 14:25:15,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:25:15,433 INFO L124 PetriNetUnfolderBase]: 23/350 cut-off events. [2024-10-11 14:25:15,433 INFO L125 PetriNetUnfolderBase]: For 77/80 co-relation queries the response was YES. [2024-10-11 14:25:15,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:25:15,433 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-10-11 14:25:15,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-10-11 14:25:15,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:25:15,434 INFO L85 PathProgramCache]: Analyzing trace with hash 293653503, now seen corresponding path program 1 times [2024-10-11 14:25:15,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:25:15,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408476916] [2024-10-11 14:25:15,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:25:15,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:25:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:25:15,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 14:25:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 14:25:15,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 14:25:15,549 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 14:25:15,549 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-10-11 14:25:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2024-10-11 14:25:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2024-10-11 14:25:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-10-11 14:25:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2024-10-11 14:25:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2024-10-11 14:25:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2024-10-11 14:25:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-10-11 14:25:15,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:25:15,552 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 14:25:15,553 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 14:25:15,553 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-11 14:25:15,748 INFO L143 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2024-10-11 14:25:15,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 597 transitions, 1449 flow