./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/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_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1 --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-d790fec [2024-12-02 07:51:51,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:51:51,245 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 07:51:51,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:51:51,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:51:51,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:51:51,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:51:51,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:51:51,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:51:51,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:51:51,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:51:51,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:51:51,277 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:51:51,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:51:51,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 07:51:51,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:51:51,279 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:51:51,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:51:51,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:51:51,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:51:51,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:51:51,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:51:51,281 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_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 07:51:51,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:51:51,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:51:51,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:51:51,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:51:51,548 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:51:51,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-12-02 07:51:54,623 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/data/ebafd7633/45e3dd8ab02d46b9b44b00fe199a867c/FLAGb6034e84d [2024-12-02 07:51:54,923 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:51:54,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-12-02 07:51:54,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/data/ebafd7633/45e3dd8ab02d46b9b44b00fe199a867c/FLAGb6034e84d [2024-12-02 07:51:54,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/data/ebafd7633/45e3dd8ab02d46b9b44b00fe199a867c [2024-12-02 07:51:54,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:51:54,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:51:54,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:51:54,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:51:54,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:51:54,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:51:54" (1/1) ... [2024-12-02 07:51:54,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571e5b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:54, skipping insertion in model container [2024-12-02 07:51:54,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:51:54" (1/1) ... [2024-12-02 07:51:54,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:51:55,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:51:55,492 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:51:55,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:51:55,625 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:51:55,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55 WrapperNode [2024-12-02 07:51:55,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:51:55,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:51:55,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:51:55,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:51:55,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,676 INFO L138 Inliner]: procedures = 279, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 374 [2024-12-02 07:51:55,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:51:55,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:51:55,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:51:55,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:51:55,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:51:55,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:51:55,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:51:55,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:51:55,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (1/1) ... [2024-12-02 07:51:55,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:51:55,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:51:55,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:51:55,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ce4d64-0d4c-4fcd-83f4-c17841e2fd3b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:51:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:51:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 07:51:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 07:51:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 07:51:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 07:51:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:51:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:51:55,804 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:51:55,973 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:51:55,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:51:56,634 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:51:56,634 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:51:56,673 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:51:56,673 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 07:51:56,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:51:56 BoogieIcfgContainer [2024-12-02 07:51:56,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:51:56,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:51:56,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:51:56,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:51:56,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:51:54" (1/3) ... [2024-12-02 07:51:56,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7304220b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:51:56, skipping insertion in model container [2024-12-02 07:51:56,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:51:55" (2/3) ... [2024-12-02 07:51:56,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7304220b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:51:56, skipping insertion in model container [2024-12-02 07:51:56,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:51:56" (3/3) ... [2024-12-02 07:51:56,684 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-12-02 07:51:56,701 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:51:56,703 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_81-list_racing.i that has 3 procedures, 386 locations, 1 initial locations, 10 loop locations, and 22 error locations. [2024-12-02 07:51:56,703 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:51:56,839 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 07:51:56,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 392 places, 411 transitions, 842 flow [2024-12-02 07:51:57,201 INFO L124 PetriNetUnfolderBase]: 54/730 cut-off events. [2024-12-02 07:51:57,204 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-02 07:51:57,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 730 events. 54/730 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3067 event pairs, 0 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 385. Up to 8 conditions per place. [2024-12-02 07:51:57,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 411 transitions, 842 flow [2024-12-02 07:51:57,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 392 places, 411 transitions, 842 flow [2024-12-02 07:51:57,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:51:57,255 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;@79739e49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:51:57,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-12-02 07:51:57,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:51:57,270 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2024-12-02 07:51:57,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:51:57,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:51:57,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:57,271 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)] === [2024-12-02 07:51:57,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 467762341, now seen corresponding path program 1 times [2024-12-02 07:51:57,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:57,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287744843] [2024-12-02 07:51:57,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:51:57,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287744843] [2024-12-02 07:51:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287744843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:57,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:51:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684685393] [2024-12-02 07:51:57,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:57,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:51:57,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:57,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:51:57,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:51:57,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 411 [2024-12-02 07:51:57,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 411 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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) [2024-12-02 07:51:57,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:51:57,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 411 [2024-12-02 07:51:57,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:51:58,592 INFO L124 PetriNetUnfolderBase]: 184/2360 cut-off events. [2024-12-02 07:51:58,592 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-12-02 07:51:58,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2360 events. 184/2360 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17491 event pairs, 132 based on Foata normal form. 276/2405 useless extension candidates. Maximal degree in co-relation 1796. Up to 283 conditions per place. [2024-12-02 07:51:58,623 INFO L140 encePairwiseOnDemand]: 391/411 looper letters, 23 selfloop transitions, 2 changer transitions 0/391 dead transitions. [2024-12-02 07:51:58,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 391 transitions, 852 flow [2024-12-02 07:51:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:51:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:51:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2024-12-02 07:51:58,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9278183292781833 [2024-12-02 07:51:58,647 INFO L175 Difference]: Start difference. First operand has 392 places, 411 transitions, 842 flow. Second operand 3 states and 1144 transitions. [2024-12-02 07:51:58,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 391 transitions, 852 flow [2024-12-02 07:51:58,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 391 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:51:58,666 INFO L231 Difference]: Finished difference. Result has 391 places, 391 transitions, 806 flow [2024-12-02 07:51:58,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=391, PETRI_TRANSITIONS=391} [2024-12-02 07:51:58,674 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -1 predicate places. [2024-12-02 07:51:58,674 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 391 transitions, 806 flow [2024-12-02 07:51:58,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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) [2024-12-02 07:51:58,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:51:58,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:58,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:51:58,676 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)] === [2024-12-02 07:51:58,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:58,677 INFO L85 PathProgramCache]: Analyzing trace with hash 553739601, now seen corresponding path program 1 times [2024-12-02 07:51:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919605222] [2024-12-02 07:51:58,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:58,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:51:58,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:58,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919605222] [2024-12-02 07:51:58,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919605222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:58,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:58,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:51:58,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841371855] [2024-12-02 07:51:58,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:58,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:51:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:58,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:51:58,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:51:58,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 411 [2024-12-02 07:51:58,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 391 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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) [2024-12-02 07:51:58,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:51:58,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 411 [2024-12-02 07:51:58,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:51:59,527 INFO L124 PetriNetUnfolderBase]: 104/1860 cut-off events. [2024-12-02 07:51:59,527 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-12-02 07:51:59,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1860 events. 104/1860 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11425 event pairs, 72 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2012. Up to 185 conditions per place. [2024-12-02 07:51:59,548 INFO L140 encePairwiseOnDemand]: 407/411 looper letters, 22 selfloop transitions, 1 changer transitions 0/388 dead transitions. [2024-12-02 07:51:59,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 388 transitions, 846 flow [2024-12-02 07:51:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:51:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:51:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1127 transitions. [2024-12-02 07:51:59,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9140308191403081 [2024-12-02 07:51:59,553 INFO L175 Difference]: Start difference. First operand has 391 places, 391 transitions, 806 flow. Second operand 3 states and 1127 transitions. [2024-12-02 07:51:59,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 388 transitions, 846 flow [2024-12-02 07:51:59,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 388 transitions, 842 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:51:59,561 INFO L231 Difference]: Finished difference. Result has 388 places, 388 transitions, 798 flow [2024-12-02 07:51:59,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=388, PETRI_TRANSITIONS=388} [2024-12-02 07:51:59,563 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -4 predicate places. [2024-12-02 07:51:59,563 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 388 transitions, 798 flow [2024-12-02 07:51:59,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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) [2024-12-02 07:51:59,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:51:59,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:59,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:51:59,565 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)] === [2024-12-02 07:51:59,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -35181057, now seen corresponding path program 1 times [2024-12-02 07:51:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:59,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150731593] [2024-12-02 07:51:59,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:00,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:00,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150731593] [2024-12-02 07:52:00,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150731593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:00,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:00,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188914418] [2024-12-02 07:52:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:00,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:52:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:00,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:52:00,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:52:00,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 411 [2024-12-02 07:52:00,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 388 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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) [2024-12-02 07:52:00,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:52:00,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 411 [2024-12-02 07:52:00,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:52:10,406 INFO L124 PetriNetUnfolderBase]: 22213/59136 cut-off events. [2024-12-02 07:52:10,406 INFO L125 PetriNetUnfolderBase]: For 445/445 co-relation queries the response was YES. [2024-12-02 07:52:10,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93231 conditions, 59136 events. 22213/59136 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 687144 event pairs, 21418 based on Foata normal form. 0/54995 useless extension candidates. Maximal degree in co-relation 93137. Up to 33895 conditions per place. [2024-12-02 07:52:10,675 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 85 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2024-12-02 07:52:10,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 387 transitions, 976 flow [2024-12-02 07:52:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:52:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:52:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2024-12-02 07:52:10,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7716950527169505 [2024-12-02 07:52:10,845 INFO L175 Difference]: Start difference. First operand has 388 places, 388 transitions, 798 flow. Second operand 6 states and 1903 transitions. [2024-12-02 07:52:10,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 387 transitions, 976 flow [2024-12-02 07:52:10,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 387 transitions, 975 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:52:10,857 INFO L231 Difference]: Finished difference. Result has 391 places, 387 transitions, 805 flow [2024-12-02 07:52:10,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=391, PETRI_TRANSITIONS=387} [2024-12-02 07:52:10,858 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -1 predicate places. [2024-12-02 07:52:10,859 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 387 transitions, 805 flow [2024-12-02 07:52:10,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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) [2024-12-02 07:52:10,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:52:10,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:10,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:52:10,861 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)] === [2024-12-02 07:52:10,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1090976278, now seen corresponding path program 1 times [2024-12-02 07:52:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:10,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074370697] [2024-12-02 07:52:10,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:11,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:11,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074370697] [2024-12-02 07:52:11,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074370697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:11,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:11,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097300646] [2024-12-02 07:52:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:11,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:52:11,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:11,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:52:11,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:52:11,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 411 [2024-12-02 07:52:11,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 387 transitions, 805 flow. Second operand has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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) [2024-12-02 07:52:11,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:52:11,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 411 [2024-12-02 07:52:11,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:52:20,699 INFO L124 PetriNetUnfolderBase]: 22213/59135 cut-off events. [2024-12-02 07:52:20,699 INFO L125 PetriNetUnfolderBase]: For 445/445 co-relation queries the response was YES. [2024-12-02 07:52:20,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93235 conditions, 59135 events. 22213/59135 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 687266 event pairs, 21418 based on Foata normal form. 0/54995 useless extension candidates. Maximal degree in co-relation 93141. Up to 33895 conditions per place. [2024-12-02 07:52:21,123 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 85 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-12-02 07:52:21,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 386 transitions, 983 flow [2024-12-02 07:52:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:52:21,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:52:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2024-12-02 07:52:21,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7716950527169505 [2024-12-02 07:52:21,128 INFO L175 Difference]: Start difference. First operand has 391 places, 387 transitions, 805 flow. Second operand 6 states and 1903 transitions. [2024-12-02 07:52:21,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 386 transitions, 983 flow [2024-12-02 07:52:21,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 386 transitions, 973 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 07:52:21,134 INFO L231 Difference]: Finished difference. Result has 390 places, 386 transitions, 803 flow [2024-12-02 07:52:21,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=803, PETRI_PLACES=390, PETRI_TRANSITIONS=386} [2024-12-02 07:52:21,136 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -2 predicate places. [2024-12-02 07:52:21,136 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 386 transitions, 803 flow [2024-12-02 07:52:21,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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) [2024-12-02 07:52:21,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:52:21,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:21,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:52:21,138 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)] === [2024-12-02 07:52:21,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2053511577, now seen corresponding path program 1 times [2024-12-02 07:52:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404730127] [2024-12-02 07:52:21,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:21,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:21,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:21,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404730127] [2024-12-02 07:52:21,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404730127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:21,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:21,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:52:21,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578012555] [2024-12-02 07:52:21,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:21,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:52:21,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:21,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:52:21,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:52:22,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 411 [2024-12-02 07:52:22,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 386 transitions, 803 flow. Second operand has 6 states, 6 states have (on average 297.8333333333333) internal successors, (1787), 6 states have internal predecessors, (1787), 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) [2024-12-02 07:52:22,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:52:22,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 411 [2024-12-02 07:52:22,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:52:32,835 INFO L124 PetriNetUnfolderBase]: 25955/68507 cut-off events. [2024-12-02 07:52:32,835 INFO L125 PetriNetUnfolderBase]: For 445/445 co-relation queries the response was YES. [2024-12-02 07:52:32,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108345 conditions, 68507 events. 25955/68507 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 1387. Compared 824336 event pairs, 24795 based on Foata normal form. 0/63639 useless extension candidates. Maximal degree in co-relation 108250. Up to 39485 conditions per place. [2024-12-02 07:52:33,120 INFO L140 encePairwiseOnDemand]: 384/411 looper letters, 105 selfloop transitions, 86 changer transitions 0/479 dead transitions. [2024-12-02 07:52:33,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 479 transitions, 1371 flow [2024-12-02 07:52:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:52:33,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:52:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1962 transitions. [2024-12-02 07:52:33,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7956204379562044 [2024-12-02 07:52:33,124 INFO L175 Difference]: Start difference. First operand has 390 places, 386 transitions, 803 flow. Second operand 6 states and 1962 transitions. [2024-12-02 07:52:33,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 479 transitions, 1371 flow [2024-12-02 07:52:33,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 479 transitions, 1361 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 07:52:33,143 INFO L231 Difference]: Finished difference. Result has 395 places, 471 transitions, 1359 flow [2024-12-02 07:52:33,144 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1359, PETRI_PLACES=395, PETRI_TRANSITIONS=471} [2024-12-02 07:52:33,145 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, 3 predicate places. [2024-12-02 07:52:33,145 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 471 transitions, 1359 flow [2024-12-02 07:52:33,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.8333333333333) internal successors, (1787), 6 states have internal predecessors, (1787), 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) [2024-12-02 07:52:33,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:52:33,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:33,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:52:33,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 07:52:33,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1448659506, now seen corresponding path program 1 times [2024-12-02 07:52:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:33,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219700809] [2024-12-02 07:52:33,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 07:52:33,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:33,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219700809] [2024-12-02 07:52:33,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219700809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:33,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:33,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:52:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518276445] [2024-12-02 07:52:33,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:33,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:52:33,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:33,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:52:33,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:52:33,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 411 [2024-12-02 07:52:33,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 471 transitions, 1359 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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) [2024-12-02 07:52:33,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:52:33,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 411 [2024-12-02 07:52:33,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:52:33,872 INFO L124 PetriNetUnfolderBase]: 309/2466 cut-off events. [2024-12-02 07:52:33,873 INFO L125 PetriNetUnfolderBase]: For 199/204 co-relation queries the response was YES. [2024-12-02 07:52:33,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3387 conditions, 2466 events. 309/2466 cut-off events. For 199/204 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 16918 event pairs, 94 based on Foata normal form. 1/2272 useless extension candidates. Maximal degree in co-relation 3288. Up to 237 conditions per place. [2024-12-02 07:52:33,885 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 22 selfloop transitions, 3 changer transitions 0/473 dead transitions. [2024-12-02 07:52:33,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 473 transitions, 1413 flow [2024-12-02 07:52:33,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:52:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:52:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1138 transitions. [2024-12-02 07:52:33,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9229521492295215 [2024-12-02 07:52:33,890 INFO L175 Difference]: Start difference. First operand has 395 places, 471 transitions, 1359 flow. Second operand 3 states and 1138 transitions. [2024-12-02 07:52:33,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 473 transitions, 1413 flow [2024-12-02 07:52:33,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 473 transitions, 1413 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:52:33,902 INFO L231 Difference]: Finished difference. Result has 398 places, 471 transitions, 1370 flow [2024-12-02 07:52:33,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1370, PETRI_PLACES=398, PETRI_TRANSITIONS=471} [2024-12-02 07:52:33,904 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, 6 predicate places. [2024-12-02 07:52:33,904 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 471 transitions, 1370 flow [2024-12-02 07:52:33,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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) [2024-12-02 07:52:33,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:52:33,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:33,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:52:33,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-12-02 07:52:33,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:33,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1080324341, now seen corresponding path program 1 times [2024-12-02 07:52:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853011195] [2024-12-02 07:52:33,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:52:33,957 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:52:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:52:34,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:52:34,049 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:52:34,050 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-12-02 07:52:34,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2024-12-02 07:52:34,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-12-02 07:52:34,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-12-02 07:52:34,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-12-02 07:52:34,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-12-02 07:52:34,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-12-02 07:52:34,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:52:34,056 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:34,059 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:52:34,059 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 07:52:34,171 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-02 07:52:34,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 595 places, 630 transitions, 1304 flow [2024-12-02 07:52:34,604 INFO L124 PetriNetUnfolderBase]: 197/1987 cut-off events. [2024-12-02 07:52:34,604 INFO L125 PetriNetUnfolderBase]: For 72/90 co-relation queries the response was YES. [2024-12-02 07:52:34,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1987 events. 197/1987 cut-off events. For 72/90 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 13206 event pairs, 2 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 1255. Up to 32 conditions per place. [2024-12-02 07:52:34,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 595 places, 630 transitions, 1304 flow [2024-12-02 07:52:34,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 595 places, 630 transitions, 1304 flow [2024-12-02 07:52:34,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:52:34,662 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;@79739e49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:52:34,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-12-02 07:52:34,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:52:34,667 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2024-12-02 07:52:34,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:52:34,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:52:34,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:52:34,667 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 48 more)] === [2024-12-02 07:52:34,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:52:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash 297524761, now seen corresponding path program 1 times [2024-12-02 07:52:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:52:34,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575053908] [2024-12-02 07:52:34,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:52:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:52:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:52:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:52:34,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:52:34,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575053908] [2024-12-02 07:52:34,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575053908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:52:34,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:52:34,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:52:34,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900416677] [2024-12-02 07:52:34,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:52:34,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:52:34,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:52:34,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:52:34,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:52:34,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 630 [2024-12-02 07:52:34,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 630 transitions, 1304 flow. Second operand has 3 states, 3 states have (on average 555.3333333333334) internal successors, (1666), 3 states have internal predecessors, (1666), 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) [2024-12-02 07:52:34,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:52:34,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 630 [2024-12-02 07:52:34,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:53:07,897 INFO L124 PetriNetUnfolderBase]: 23494/136731 cut-off events. [2024-12-02 07:53:07,897 INFO L125 PetriNetUnfolderBase]: For 11297/11297 co-relation queries the response was YES. [2024-12-02 07:53:09,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169923 conditions, 136731 events. 23494/136731 cut-off events. For 11297/11297 co-relation queries the response was YES. Maximal size of possible extension queue 2135. Compared 2264585 event pairs, 20092 based on Foata normal form. 22015/146247 useless extension candidates. Maximal degree in co-relation 51573. Up to 28963 conditions per place. [2024-12-02 07:53:10,204 INFO L140 encePairwiseOnDemand]: 597/630 looper letters, 41 selfloop transitions, 2 changer transitions 0/595 dead transitions. [2024-12-02 07:53:10,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 595 transitions, 1320 flow [2024-12-02 07:53:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:53:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:53:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1736 transitions. [2024-12-02 07:53:10,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2024-12-02 07:53:10,207 INFO L175 Difference]: Start difference. First operand has 595 places, 630 transitions, 1304 flow. Second operand 3 states and 1736 transitions. [2024-12-02 07:53:10,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 595 transitions, 1320 flow [2024-12-02 07:53:10,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 595 transitions, 1320 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:53:10,215 INFO L231 Difference]: Finished difference. Result has 592 places, 595 transitions, 1238 flow [2024-12-02 07:53:10,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=630, PETRI_DIFFERENCE_MINUEND_FLOW=1234, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1238, PETRI_PLACES=592, PETRI_TRANSITIONS=595} [2024-12-02 07:53:10,217 INFO L279 CegarLoopForPetriNet]: 595 programPoint places, -3 predicate places. [2024-12-02 07:53:10,217 INFO L471 AbstractCegarLoop]: Abstraction has has 592 places, 595 transitions, 1238 flow [2024-12-02 07:53:10,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 555.3333333333334) internal successors, (1666), 3 states have internal predecessors, (1666), 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) [2024-12-02 07:53:10,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:53:10,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:10,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:53:10,218 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 48 more)] === [2024-12-02 07:53:10,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash -129177147, now seen corresponding path program 1 times [2024-12-02 07:53:10,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:10,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514235867] [2024-12-02 07:53:10,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:10,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:10,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514235867] [2024-12-02 07:53:10,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514235867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:10,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:10,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:53:10,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055792182] [2024-12-02 07:53:10,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:10,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:53:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:10,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:53:10,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:53:10,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 550 out of 630 [2024-12-02 07:53:10,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 595 transitions, 1238 flow. Second operand has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2024-12-02 07:53:10,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:53:10,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 550 of 630 [2024-12-02 07:53:10,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:53:43,362 INFO L124 PetriNetUnfolderBase]: 22798/146137 cut-off events. [2024-12-02 07:53:43,363 INFO L125 PetriNetUnfolderBase]: For 19056/19056 co-relation queries the response was YES. [2024-12-02 07:53:44,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183019 conditions, 146137 events. 22798/146137 cut-off events. For 19056/19056 co-relation queries the response was YES. Maximal size of possible extension queue 2095. Compared 2447970 event pairs, 19717 based on Foata normal form. 0/132186 useless extension candidates. Maximal degree in co-relation 182922. Up to 29778 conditions per place. [2024-12-02 07:53:45,399 INFO L140 encePairwiseOnDemand]: 624/630 looper letters, 42 selfloop transitions, 1 changer transitions 0/590 dead transitions. [2024-12-02 07:53:45,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 590 transitions, 1314 flow [2024-12-02 07:53:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:53:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:53:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1698 transitions. [2024-12-02 07:53:45,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8984126984126984 [2024-12-02 07:53:45,401 INFO L175 Difference]: Start difference. First operand has 592 places, 595 transitions, 1238 flow. Second operand 3 states and 1698 transitions. [2024-12-02 07:53:45,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 590 transitions, 1314 flow [2024-12-02 07:53:45,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 590 transitions, 1310 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:53:45,548 INFO L231 Difference]: Finished difference. Result has 587 places, 590 transitions, 1226 flow [2024-12-02 07:53:45,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=630, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1226, PETRI_PLACES=587, PETRI_TRANSITIONS=590} [2024-12-02 07:53:45,549 INFO L279 CegarLoopForPetriNet]: 595 programPoint places, -8 predicate places. [2024-12-02 07:53:45,549 INFO L471 AbstractCegarLoop]: Abstraction has has 587 places, 590 transitions, 1226 flow [2024-12-02 07:53:45,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2024-12-02 07:53:45,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:53:45,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:45,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:53:45,550 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 48 more)] === [2024-12-02 07:53:45,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:45,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1076889101, now seen corresponding path program 1 times [2024-12-02 07:53:45,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:45,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229319416] [2024-12-02 07:53:45,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:45,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:45,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:45,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229319416] [2024-12-02 07:53:45,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229319416] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:45,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:45,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:53:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649561934] [2024-12-02 07:53:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:45,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:53:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:45,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:53:45,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:53:46,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 630 [2024-12-02 07:53:46,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 590 transitions, 1226 flow. Second operand has 6 states, 6 states have (on average 444.3333333333333) internal successors, (2666), 6 states have internal predecessors, (2666), 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) [2024-12-02 07:53:46,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:53:46,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 630 [2024-12-02 07:53:46,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand