./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:38:50,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:38:50,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-23 18:38:50,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:38:50,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:38:50,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:38:50,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:38:50,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:38:50,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:38:50,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:38:50,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:38:50,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:38:50,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:38:50,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:38:50,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:38:50,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:38:50,769 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:50,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:38:50,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:50,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:38:50,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:38:50,771 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:38:50,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:38:50,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:38:50,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:38:50,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:38:50,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:38:50,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:38:50,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:38:50,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC 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 ! data-race) ) 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 -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2024-11-23 18:38:51,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:38:51,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:38:51,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:38:51,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:38:51,093 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:38:51,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-23 18:38:54,120 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/data/64a87b5db/a3b08b926fc3490d9c7dac72305f883f/FLAG01a829f18 [2024-11-23 18:38:54,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:38:54,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-23 18:38:54,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/data/64a87b5db/a3b08b926fc3490d9c7dac72305f883f/FLAG01a829f18 [2024-11-23 18:38:54,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/data/64a87b5db/a3b08b926fc3490d9c7dac72305f883f [2024-11-23 18:38:54,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:38:54,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:38:54,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:54,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:38:54,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:38:54,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d0666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54, skipping insertion in model container [2024-11-23 18:38:54,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:54,500 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:38:54,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:54,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:38:54,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:38:54,967 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:38:54,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54 WrapperNode [2024-11-23 18:38:54,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:38:54,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:54,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:38:54,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:38:54,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,054 INFO L138 Inliner]: procedures = 173, calls = 57, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 311 [2024-11-23 18:38:55,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:38:55,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:38:55,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:38:55,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:38:55,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:38:55,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:38:55,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:38:55,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:38:55,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (1/1) ... [2024-11-23 18:38:55,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:38:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:38:55,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:38:55,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0824fbbb-f4a9-41ae-bc54-95109fd5e372/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:38:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 18:38:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-23 18:38:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-23 18:38:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 18:38:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-23 18:38:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 18:38:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:38:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:38:55,211 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:38:55,407 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:38:55,409 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:38:56,054 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:38:56,055 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:38:56,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:38:56,124 INFO L312 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-23 18:38:56,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:56 BoogieIcfgContainer [2024-11-23 18:38:56,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:38:56,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:38:56,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:38:56,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:38:56,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:38:54" (1/3) ... [2024-11-23 18:38:56,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cef2e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:56, skipping insertion in model container [2024-11-23 18:38:56,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:54" (2/3) ... [2024-11-23 18:38:56,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cef2e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:56, skipping insertion in model container [2024-11-23 18:38:56,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:56" (3/3) ... [2024-11-23 18:38:56,138 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2024-11-23 18:38:56,155 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:38:56,156 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_10-ptrmunge_racefree.i that has 3 procedures, 296 locations, 1 initial locations, 14 loop locations, and 14 error locations. [2024-11-23 18:38:56,157 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:38:56,332 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 18:38:56,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 331 transitions, 682 flow [2024-11-23 18:38:56,751 INFO L124 PetriNetUnfolderBase]: 61/612 cut-off events. [2024-11-23 18:38:56,754 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-23 18:38:56,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 612 events. 61/612 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3146 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 340. Up to 8 conditions per place. [2024-11-23 18:38:56,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 331 transitions, 682 flow [2024-11-23 18:38:56,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 331 transitions, 682 flow [2024-11-23 18:38:56,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:38:56,815 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;@1df59dd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:38:56,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-23 18:38:56,827 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:38:56,828 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-23 18:38:56,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:38:56,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:38:56,830 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:56,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-23 18:38:56,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:56,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2065065054, now seen corresponding path program 1 times [2024-11-23 18:38:56,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:56,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688750687] [2024-11-23 18:38:56,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:56,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:38:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:38:57,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:38:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688750687] [2024-11-23 18:38:57,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688750687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:38:57,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:38:57,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:38:57,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308496834] [2024-11-23 18:38:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:58,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:38:58,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:38:58,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:38:58,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:38:58,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 331 [2024-11-23 18:38:58,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 331 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:38:58,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:38:58,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 331 [2024-11-23 18:38:58,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:39:09,747 INFO L124 PetriNetUnfolderBase]: 25883/66272 cut-off events. [2024-11-23 18:39:09,747 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2024-11-23 18:39:09,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105967 conditions, 66272 events. 25883/66272 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 817132 event pairs, 23170 based on Foata normal form. 11017/72758 useless extension candidates. Maximal degree in co-relation 102576. Up to 39291 conditions per place. [2024-11-23 18:39:10,126 INFO L140 encePairwiseOnDemand]: 276/331 looper letters, 119 selfloop transitions, 86 changer transitions 0/416 dead transitions. [2024-11-23 18:39:10,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 416 transitions, 1262 flow [2024-11-23 18:39:10,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:39:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:39:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1560 transitions. [2024-11-23 18:39:10,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7854984894259819 [2024-11-23 18:39:10,159 INFO L175 Difference]: Start difference. First operand has 302 places, 331 transitions, 682 flow. Second operand 6 states and 1560 transitions. [2024-11-23 18:39:10,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 416 transitions, 1262 flow [2024-11-23 18:39:10,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 416 transitions, 1262 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:39:10,191 INFO L231 Difference]: Finished difference. Result has 308 places, 384 transitions, 1184 flow [2024-11-23 18:39:10,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1184, PETRI_PLACES=308, PETRI_TRANSITIONS=384} [2024-11-23 18:39:10,199 INFO L279 CegarLoopForPetriNet]: 302 programPoint places, 6 predicate places. [2024-11-23 18:39:10,201 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 384 transitions, 1184 flow [2024-11-23 18:39:10,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.5) internal successors, (1287), 6 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:39:10,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:39:10,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:10,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:39:10,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-23 18:39:10,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash -744831224, now seen corresponding path program 1 times [2024-11-23 18:39:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132110102] [2024-11-23 18:39:10,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:10,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:10,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:10,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132110102] [2024-11-23 18:39:10,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132110102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:10,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:10,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:39:10,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207901053] [2024-11-23 18:39:10,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:10,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:39:10,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:10,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:39:10,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:39:10,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 331 [2024-11-23 18:39:10,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 384 transitions, 1184 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:39:10,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:39:10,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 331 [2024-11-23 18:39:10,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:39:11,344 INFO L124 PetriNetUnfolderBase]: 500/4048 cut-off events. [2024-11-23 18:39:11,344 INFO L125 PetriNetUnfolderBase]: For 274/296 co-relation queries the response was YES. [2024-11-23 18:39:11,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5328 conditions, 4048 events. 500/4048 cut-off events. For 274/296 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 38406 event pairs, 280 based on Foata normal form. 1/3689 useless extension candidates. Maximal degree in co-relation 4797. Up to 565 conditions per place. [2024-11-23 18:39:11,371 INFO L140 encePairwiseOnDemand]: 328/331 looper letters, 34 selfloop transitions, 3 changer transitions 0/392 dead transitions. [2024-11-23 18:39:11,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 392 transitions, 1274 flow [2024-11-23 18:39:11,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:39:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:39:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 856 transitions. [2024-11-23 18:39:11,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8620342396777442 [2024-11-23 18:39:11,377 INFO L175 Difference]: Start difference. First operand has 308 places, 384 transitions, 1184 flow. Second operand 3 states and 856 transitions. [2024-11-23 18:39:11,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 392 transitions, 1274 flow [2024-11-23 18:39:11,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 392 transitions, 1274 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:39:11,397 INFO L231 Difference]: Finished difference. Result has 311 places, 384 transitions, 1195 flow [2024-11-23 18:39:11,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1195, PETRI_PLACES=311, PETRI_TRANSITIONS=384} [2024-11-23 18:39:11,399 INFO L279 CegarLoopForPetriNet]: 302 programPoint places, 9 predicate places. [2024-11-23 18:39:11,399 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 384 transitions, 1195 flow [2024-11-23 18:39:11,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:39:11,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:39:11,400 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:11,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:39:11,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-23 18:39:11,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash 784507688, now seen corresponding path program 1 times [2024-11-23 18:39:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:11,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045765510] [2024-11-23 18:39:11,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:39:11,456 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:39:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:39:11,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:39:11,528 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:39:11,529 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-23 18:39:11,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-23 18:39:11,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-23 18:39:11,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-23 18:39:11,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-23 18:39:11,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-23 18:39:11,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-23 18:39:11,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-23 18:39:11,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-23 18:39:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:39:11,538 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 18:39:11,542 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:39:11,542 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-23 18:39:11,726 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-23 18:39:11,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 494 places, 549 transitions, 1142 flow [2024-11-23 18:39:12,426 INFO L124 PetriNetUnfolderBase]: 205/1754 cut-off events. [2024-11-23 18:39:12,426 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2024-11-23 18:39:12,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1754 events. 205/1754 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12117 event pairs, 1 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 1063. Up to 32 conditions per place. [2024-11-23 18:39:12,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 494 places, 549 transitions, 1142 flow [2024-11-23 18:39:12,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 494 places, 549 transitions, 1142 flow [2024-11-23 18:39:12,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:39:12,509 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;@1df59dd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:39:12,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-23 18:39:12,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:39:12,524 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-23 18:39:12,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:39:12,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:39:12,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:12,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-23 18:39:12,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1440236837, now seen corresponding path program 1 times [2024-11-23 18:39:12,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:39:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260991703] [2024-11-23 18:39:12,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:39:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:39:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:39:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260991703] [2024-11-23 18:39:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260991703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:13,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:13,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:39:13,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861888323] [2024-11-23 18:39:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:13,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:13,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:39:13,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:13,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:39:14,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 549 [2024-11-23 18:39:14,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 549 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 344.5) internal successors, (2067), 6 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:39:14,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:39:14,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 549 [2024-11-23 18:39:14,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand