./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd --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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:10:53,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:10:53,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:10:53,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:10:53,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:10:53,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:10:53,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:10:53,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:10:53,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:10:53,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:10:53,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:10:53,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:10:53,683 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:10:53,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:10:53,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:10:53,684 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:10:53,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:10:53,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:10:53,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:10:53,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:10:53,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:10:53,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:10:53,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:10:53,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:10:53,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:10:53,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:53,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:10:53,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:10:53,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:10:53,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:10:53,689 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_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-13 16:10:54,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:54,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:54,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:54,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:54,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:54,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i Unable to find full path for "g++" [2024-11-13 16:10:56,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:56,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:56,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-13 16:10:56,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/data/24592ba4d/72217e85ad844d93a647265087e9b0c0/FLAGf5c4fc0f1 [2024-11-13 16:10:56,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/data/24592ba4d/72217e85ad844d93a647265087e9b0c0 [2024-11-13 16:10:56,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:56,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:56,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:56,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:56,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:56,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:56" (1/1) ... [2024-11-13 16:10:56,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a016aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:56, skipping insertion in model container [2024-11-13 16:10:56,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:56" (1/1) ... [2024-11-13 16:10:56,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:57,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:57,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:57,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:57,549 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:57,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57 WrapperNode [2024-11-13 16:10:57,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:57,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:57,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:57,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:57,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,638 INFO L138 Inliner]: procedures = 280, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 383 [2024-11-13 16:10:57,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:57,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:57,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:57,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:57,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:57,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:57,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:57,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:57,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:57,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:57,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:57,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c4f4c95-0477-4475-a83e-0fa58236b30e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:10:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-13 16:10:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:10:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-13 16:10:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-13 16:10:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:10:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:10:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:10:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:10:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:10:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:57,797 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:10:58,086 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:58,088 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:58,893 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:10:58,893 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:58,927 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:58,928 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-13 16:10:58,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:58 BoogieIcfgContainer [2024-11-13 16:10:58,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:58,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:10:58,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:10:58,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:10:58,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:10:56" (1/3) ... [2024-11-13 16:10:58,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62752451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:58, skipping insertion in model container [2024-11-13 16:10:58,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (2/3) ... [2024-11-13 16:10:58,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62752451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:58, skipping insertion in model container [2024-11-13 16:10:58,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:58" (3/3) ... [2024-11-13 16:10:58,942 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-13 16:10:58,958 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:10:58,960 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_81-list_racing.i that has 3 procedures, 395 locations, 1 initial locations, 10 loop locations, and 22 error locations. [2024-11-13 16:10:58,960 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:10:59,117 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 16:10:59,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 420 transitions, 860 flow [2024-11-13 16:10:59,562 INFO L124 PetriNetUnfolderBase]: 54/739 cut-off events. [2024-11-13 16:10:59,564 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 16:10:59,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 739 events. 54/739 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3049 event pairs, 0 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 394. Up to 8 conditions per place. [2024-11-13 16:10:59,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 420 transitions, 860 flow [2024-11-13 16:10:59,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 401 places, 420 transitions, 860 flow [2024-11-13 16:10:59,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:59,638 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;@74142e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:59,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-13 16:10:59,661 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:10:59,663 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-13 16:10:59,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:10:59,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:59,664 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:59,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 16:10:59,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1903017623, now seen corresponding path program 1 times [2024-11-13 16:10:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:59,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092826583] [2024-11-13 16:10:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:59,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:00,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:00,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092826583] [2024-11-13 16:11:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092826583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:11:00,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033016478] [2024-11-13 16:11:00,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:00,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:11:00,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:00,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:11:00,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:11:00,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 420 [2024-11-13 16:11:00,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 420 transitions, 860 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 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) [2024-11-13 16:11:00,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:00,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 420 [2024-11-13 16:11:00,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:01,364 INFO L124 PetriNetUnfolderBase]: 184/2369 cut-off events. [2024-11-13 16:11:01,365 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-11-13 16:11:01,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2703 conditions, 2369 events. 184/2369 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17442 event pairs, 132 based on Foata normal form. 276/2414 useless extension candidates. Maximal degree in co-relation 1796. Up to 283 conditions per place. [2024-11-13 16:11:01,407 INFO L140 encePairwiseOnDemand]: 400/420 looper letters, 23 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2024-11-13 16:11:01,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 400 transitions, 870 flow [2024-11-13 16:11:01,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:11:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:11:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1171 transitions. [2024-11-13 16:11:01,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293650793650794 [2024-11-13 16:11:01,441 INFO L175 Difference]: Start difference. First operand has 401 places, 420 transitions, 860 flow. Second operand 3 states and 1171 transitions. [2024-11-13 16:11:01,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 400 transitions, 870 flow [2024-11-13 16:11:01,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 870 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:11:01,472 INFO L231 Difference]: Finished difference. Result has 400 places, 400 transitions, 824 flow [2024-11-13 16:11:01,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=400, PETRI_TRANSITIONS=400} [2024-11-13 16:11:01,483 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -1 predicate places. [2024-11-13 16:11:01,485 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 400 transitions, 824 flow [2024-11-13 16:11:01,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 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) [2024-11-13 16:11:01,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:01,487 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:01,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:11:01,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 16:11:01,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1909701356, now seen corresponding path program 1 times [2024-11-13 16:11:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975710391] [2024-11-13 16:11:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:01,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:01,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975710391] [2024-11-13 16:11:01,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975710391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:01,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:01,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:11:01,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688956792] [2024-11-13 16:11:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:01,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:11:01,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:11:01,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:11:01,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 420 [2024-11-13 16:11:01,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 400 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 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) [2024-11-13 16:11:01,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:01,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 420 [2024-11-13 16:11:01,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:02,401 INFO L124 PetriNetUnfolderBase]: 104/1869 cut-off events. [2024-11-13 16:11:02,401 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-13 16:11:02,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 1869 events. 104/1869 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11490 event pairs, 72 based on Foata normal form. 0/1693 useless extension candidates. Maximal degree in co-relation 2012. Up to 185 conditions per place. [2024-11-13 16:11:02,423 INFO L140 encePairwiseOnDemand]: 416/420 looper letters, 22 selfloop transitions, 1 changer transitions 0/397 dead transitions. [2024-11-13 16:11:02,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 397 transitions, 864 flow [2024-11-13 16:11:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:11:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:11:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1154 transitions. [2024-11-13 16:11:02,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9158730158730158 [2024-11-13 16:11:02,427 INFO L175 Difference]: Start difference. First operand has 400 places, 400 transitions, 824 flow. Second operand 3 states and 1154 transitions. [2024-11-13 16:11:02,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 397 transitions, 864 flow [2024-11-13 16:11:02,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 397 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:11:02,443 INFO L231 Difference]: Finished difference. Result has 397 places, 397 transitions, 816 flow [2024-11-13 16:11:02,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=397, PETRI_TRANSITIONS=397} [2024-11-13 16:11:02,446 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -4 predicate places. [2024-11-13 16:11:02,447 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 397 transitions, 816 flow [2024-11-13 16:11:02,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 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) [2024-11-13 16:11:02,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:02,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2024-11-13 16:11:02,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:11:02,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 16:11:02,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1694134684, now seen corresponding path program 1 times [2024-11-13 16:11:02,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:02,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143014079] [2024-11-13 16:11:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:03,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:03,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143014079] [2024-11-13 16:11:03,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143014079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:03,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:03,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:11:03,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130606391] [2024-11-13 16:11:03,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:03,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:11:03,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:11:03,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:11:04,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 420 [2024-11-13 16:11:04,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 397 transitions, 816 flow. Second operand has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 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) [2024-11-13 16:11:04,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:04,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 420 [2024-11-13 16:11:04,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:14,812 INFO L124 PetriNetUnfolderBase]: 22238/59997 cut-off events. [2024-11-13 16:11:14,813 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-11-13 16:11:14,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94076 conditions, 59997 events. 22238/59997 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 702353 event pairs, 21418 based on Foata normal form. 0/55856 useless extension candidates. Maximal degree in co-relation 93973. Up to 33881 conditions per place. [2024-11-13 16:11:15,153 INFO L140 encePairwiseOnDemand]: 414/420 looper letters, 85 selfloop transitions, 5 changer transitions 0/396 dead transitions. [2024-11-13 16:11:15,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 396 transitions, 994 flow [2024-11-13 16:11:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:11:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:11:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1957 transitions. [2024-11-13 16:11:15,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7765873015873016 [2024-11-13 16:11:15,160 INFO L175 Difference]: Start difference. First operand has 397 places, 397 transitions, 816 flow. Second operand 6 states and 1957 transitions. [2024-11-13 16:11:15,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 396 transitions, 994 flow [2024-11-13 16:11:15,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 396 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:11:15,184 INFO L231 Difference]: Finished difference. Result has 400 places, 396 transitions, 823 flow [2024-11-13 16:11:15,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=400, PETRI_TRANSITIONS=396} [2024-11-13 16:11:15,187 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -1 predicate places. [2024-11-13 16:11:15,187 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 396 transitions, 823 flow [2024-11-13 16:11:15,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 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) [2024-11-13 16:11:15,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:15,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2024-11-13 16:11:15,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:11:15,189 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 16:11:15,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash -910127275, now seen corresponding path program 1 times [2024-11-13 16:11:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:15,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288325535] [2024-11-13 16:11:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:16,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288325535] [2024-11-13 16:11:16,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288325535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:16,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:16,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:11:16,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163452215] [2024-11-13 16:11:16,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:16,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:11:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:11:16,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:11:16,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 420 [2024-11-13 16:11:16,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 396 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 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) [2024-11-13 16:11:16,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:16,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 420 [2024-11-13 16:11:16,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:26,593 INFO L124 PetriNetUnfolderBase]: 22238/59996 cut-off events. [2024-11-13 16:11:26,593 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-11-13 16:11:26,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94080 conditions, 59996 events. 22238/59996 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 702189 event pairs, 21418 based on Foata normal form. 0/55856 useless extension candidates. Maximal degree in co-relation 93977. Up to 33881 conditions per place. [2024-11-13 16:11:27,004 INFO L140 encePairwiseOnDemand]: 414/420 looper letters, 85 selfloop transitions, 5 changer transitions 0/395 dead transitions. [2024-11-13 16:11:27,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 395 transitions, 1001 flow [2024-11-13 16:11:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:11:27,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:11:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1957 transitions. [2024-11-13 16:11:27,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7765873015873016 [2024-11-13 16:11:27,013 INFO L175 Difference]: Start difference. First operand has 400 places, 396 transitions, 823 flow. Second operand 6 states and 1957 transitions. [2024-11-13 16:11:27,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 395 transitions, 1001 flow [2024-11-13 16:11:27,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 395 transitions, 991 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:11:27,029 INFO L231 Difference]: Finished difference. Result has 399 places, 395 transitions, 821 flow [2024-11-13 16:11:27,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=420, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=399, PETRI_TRANSITIONS=395} [2024-11-13 16:11:27,033 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -2 predicate places. [2024-11-13 16:11:27,033 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 395 transitions, 821 flow [2024-11-13 16:11:27,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 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) [2024-11-13 16:11:27,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:27,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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] [2024-11-13 16:11:27,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:11:27,036 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 16:11:27,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash 41079631, now seen corresponding path program 1 times [2024-11-13 16:11:27,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:27,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611219457] [2024-11-13 16:11:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:28,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:28,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611219457] [2024-11-13 16:11:28,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611219457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:28,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:28,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:11:28,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588096459] [2024-11-13 16:11:28,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:28,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:11:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:11:28,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:11:28,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 420 [2024-11-13 16:11:28,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 395 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 306.8333333333333) internal successors, (1841), 6 states have internal predecessors, (1841), 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) [2024-11-13 16:11:28,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:28,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 420 [2024-11-13 16:11:28,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand