./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.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_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB --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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:56,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:56,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:06:56,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:56,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:56,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:56,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:56,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:56,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:56,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:56,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:56,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:56,590 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:56,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:56,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:56,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:56,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:56,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:56,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:56,596 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:56,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:56,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:56,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:56,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:56,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:56,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:56,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:56,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:56,599 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_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2024-11-28 03:06:56,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:56,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:56,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:56,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:56,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:56,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-11-28 03:06:59,860 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/data/27d973f27/97f545496a084534876b6617c10135af/FLAGcdc3771d8 [2024-11-28 03:07:00,302 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:07:00,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-11-28 03:07:00,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/data/27d973f27/97f545496a084534876b6617c10135af/FLAGcdc3771d8 [2024-11-28 03:07:00,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/data/27d973f27/97f545496a084534876b6617c10135af [2024-11-28 03:07:00,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:07:00,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:07:00,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:00,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:07:00,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:07:00,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:00" (1/1) ... [2024-11-28 03:07:00,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2babbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:00, skipping insertion in model container [2024-11-28 03:07:00,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:00" (1/1) ... [2024-11-28 03:07:00,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:07:01,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:01,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:07:01,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:01,469 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:07:01,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01 WrapperNode [2024-11-28 03:07:01,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:01,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:01,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:07:01,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:07:01,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,530 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-28 03:07:01,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:01,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:07:01,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:07:01,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:07:01,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:07:01,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:07:01,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:07:01,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:07:01,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (1/1) ... [2024-11-28 03:07:01,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:01,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:01,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:07:01,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:07:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:07:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:07:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:07:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:07:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:07:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:07:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:07:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:07:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 03:07:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 03:07:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:07:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:07:01,646 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:07:01,813 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:07:01,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:07:02,089 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:07:02,089 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:07:02,118 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:07:02,119 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:07:02,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:02 BoogieIcfgContainer [2024-11-28 03:07:02,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:07:02,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:07:02,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:07:02,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:07:02,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:00" (1/3) ... [2024-11-28 03:07:02,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7539d6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:02, skipping insertion in model container [2024-11-28 03:07:02,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:01" (2/3) ... [2024-11-28 03:07:02,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7539d6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:02, skipping insertion in model container [2024-11-28 03:07:02,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:02" (3/3) ... [2024-11-28 03:07:02,137 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2024-11-28 03:07:02,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:07:02,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-dynamic-race-2.i that has 2 procedures, 85 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-28 03:07:02,158 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:07:02,252 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:07:02,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 185 flow [2024-11-28 03:07:02,431 INFO L124 PetriNetUnfolderBase]: 6/123 cut-off events. [2024-11-28 03:07:02,434 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:07:02,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 123 events. 6/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-28 03:07:02,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 89 transitions, 185 flow [2024-11-28 03:07:02,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 89 transitions, 185 flow [2024-11-28 03:07:02,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:02,478 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;@6c85ad97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:02,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 03:07:02,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:07:02,497 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 03:07:02,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:07:02,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:02,498 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] [2024-11-28 03:07:02,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:02,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1766193537, now seen corresponding path program 1 times [2024-11-28 03:07:02,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844377692] [2024-11-28 03:07:02,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:02,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844377692] [2024-11-28 03:07:02,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844377692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:02,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:02,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:02,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596147870] [2024-11-28 03:07:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:02,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:02,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:02,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:02,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:02,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 89 [2024-11-28 03:07:02,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:02,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:02,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 89 [2024-11-28 03:07:02,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:03,042 INFO L124 PetriNetUnfolderBase]: 8/161 cut-off events. [2024-11-28 03:07:03,043 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-28 03:07:03,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 161 events. 8/161 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 415 event pairs, 1 based on Foata normal form. 8/152 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-11-28 03:07:03,046 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 8 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2024-11-28 03:07:03,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 211 flow [2024-11-28 03:07:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-28 03:07:03,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9363295880149812 [2024-11-28 03:07:03,067 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 185 flow. Second operand 3 states and 250 transitions. [2024-11-28 03:07:03,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 211 flow [2024-11-28 03:07:03,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:07:03,081 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 199 flow [2024-11-28 03:07:03,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-11-28 03:07:03,094 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-28 03:07:03,094 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 199 flow [2024-11-28 03:07:03,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:03,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:03,095 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] [2024-11-28 03:07:03,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:07:03,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:03,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1082358490, now seen corresponding path program 1 times [2024-11-28 03:07:03,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:03,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463125877] [2024-11-28 03:07:03,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:03,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:03,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:03,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463125877] [2024-11-28 03:07:03,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463125877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:03,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:03,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46687229] [2024-11-28 03:07:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:03,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:03,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:03,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:03,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:03,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 89 [2024-11-28 03:07:03,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:03,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:03,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 89 [2024-11-28 03:07:03,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:03,870 INFO L124 PetriNetUnfolderBase]: 17/224 cut-off events. [2024-11-28 03:07:03,874 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 03:07:03,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 224 events. 17/224 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 779 event pairs, 7 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 215. Up to 49 conditions per place. [2024-11-28 03:07:03,876 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 15 selfloop transitions, 2 changer transitions 5/94 dead transitions. [2024-11-28 03:07:03,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 94 transitions, 257 flow [2024-11-28 03:07:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:03,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2024-11-28 03:07:03,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8408239700374532 [2024-11-28 03:07:03,882 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 199 flow. Second operand 6 states and 449 transitions. [2024-11-28 03:07:03,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 94 transitions, 257 flow [2024-11-28 03:07:03,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:03,890 INFO L231 Difference]: Finished difference. Result has 98 places, 87 transitions, 211 flow [2024-11-28 03:07:03,891 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=98, PETRI_TRANSITIONS=87} [2024-11-28 03:07:03,892 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-28 03:07:03,892 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 87 transitions, 211 flow [2024-11-28 03:07:03,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:03,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:03,892 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] [2024-11-28 03:07:03,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:07:03,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:03,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash 383388444, now seen corresponding path program 1 times [2024-11-28 03:07:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486793962] [2024-11-28 03:07:03,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:04,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:04,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486793962] [2024-11-28 03:07:04,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486793962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:04,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:04,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:04,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673614233] [2024-11-28 03:07:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:04,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:04,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:04,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:04,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:05,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 89 [2024-11-28 03:07:05,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 87 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:05,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 89 [2024-11-28 03:07:05,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:05,140 INFO L124 PetriNetUnfolderBase]: 30/239 cut-off events. [2024-11-28 03:07:05,140 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-28 03:07:05,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 239 events. 30/239 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1007 event pairs, 5 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 295. Up to 61 conditions per place. [2024-11-28 03:07:05,143 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 24 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2024-11-28 03:07:05,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 283 flow [2024-11-28 03:07:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 414 transitions. [2024-11-28 03:07:05,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7752808988764045 [2024-11-28 03:07:05,146 INFO L175 Difference]: Start difference. First operand has 98 places, 87 transitions, 211 flow. Second operand 6 states and 414 transitions. [2024-11-28 03:07:05,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 283 flow [2024-11-28 03:07:05,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 269 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:05,150 INFO L231 Difference]: Finished difference. Result has 94 places, 86 transitions, 205 flow [2024-11-28 03:07:05,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2024-11-28 03:07:05,152 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-28 03:07:05,152 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 205 flow [2024-11-28 03:07:05,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:05,153 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] [2024-11-28 03:07:05,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:07:05,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:05,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1407678576, now seen corresponding path program 1 times [2024-11-28 03:07:05,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:05,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579586322] [2024-11-28 03:07:05,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:05,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:05,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579586322] [2024-11-28 03:07:05,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579586322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:05,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:05,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:05,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909721007] [2024-11-28 03:07:05,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:05,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:05,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:05,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:05,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:05,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 89 [2024-11-28 03:07:05,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:05,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 89 [2024-11-28 03:07:05,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:05,297 INFO L124 PetriNetUnfolderBase]: 5/167 cut-off events. [2024-11-28 03:07:05,297 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-28 03:07:05,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 167 events. 5/167 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 478 event pairs, 3 based on Foata normal form. 1/156 useless extension candidates. Maximal degree in co-relation 173. Up to 25 conditions per place. [2024-11-28 03:07:05,298 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 8 selfloop transitions, 4 changer transitions 3/89 dead transitions. [2024-11-28 03:07:05,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 241 flow [2024-11-28 03:07:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-11-28 03:07:05,302 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2024-11-28 03:07:05,302 INFO L175 Difference]: Start difference. First operand has 94 places, 86 transitions, 205 flow. Second operand 3 states and 242 transitions. [2024-11-28 03:07:05,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 241 flow [2024-11-28 03:07:05,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 231 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:05,308 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 217 flow [2024-11-28 03:07:05,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-11-28 03:07:05,309 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-28 03:07:05,310 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 217 flow [2024-11-28 03:07:05,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:05,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:05,310 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] [2024-11-28 03:07:05,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:07:05,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:05,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1137819091, now seen corresponding path program 1 times [2024-11-28 03:07:05,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:05,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914183426] [2024-11-28 03:07:05,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:05,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:05,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914183426] [2024-11-28 03:07:05,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914183426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:05,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:05,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:05,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985036104] [2024-11-28 03:07:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:05,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:05,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:05,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:05,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:06,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2024-11-28 03:07:06,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:06,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:06,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2024-11-28 03:07:06,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:06,198 INFO L124 PetriNetUnfolderBase]: 25/280 cut-off events. [2024-11-28 03:07:06,198 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-11-28 03:07:06,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 280 events. 25/280 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1216 event pairs, 15 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-11-28 03:07:06,203 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 12 selfloop transitions, 0 changer transitions 18/93 dead transitions. [2024-11-28 03:07:06,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 93 transitions, 285 flow [2024-11-28 03:07:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-11-28 03:07:06,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7940074906367042 [2024-11-28 03:07:06,207 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 217 flow. Second operand 6 states and 424 transitions. [2024-11-28 03:07:06,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 93 transitions, 285 flow [2024-11-28 03:07:06,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:06,222 INFO L231 Difference]: Finished difference. Result has 95 places, 75 transitions, 184 flow [2024-11-28 03:07:06,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=95, PETRI_TRANSITIONS=75} [2024-11-28 03:07:06,226 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2024-11-28 03:07:06,226 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 75 transitions, 184 flow [2024-11-28 03:07:06,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:06,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:06,227 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] [2024-11-28 03:07:06,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:07:06,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:07:06,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1105888144, now seen corresponding path program 1 times [2024-11-28 03:07:06,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:06,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586661904] [2024-11-28 03:07:06,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:06,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:07:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:06,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:07:06,303 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:07:06,304 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-28 03:07:06,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-28 03:07:06,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-28 03:07:06,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-28 03:07:06,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-28 03:07:06,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-28 03:07:06,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:07:06,307 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:07:06,310 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:07:06,311 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:07:06,333 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:07:06,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 230 flow [2024-11-28 03:07:06,367 INFO L124 PetriNetUnfolderBase]: 11/206 cut-off events. [2024-11-28 03:07:06,368 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:07:06,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 206 events. 11/206 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2024-11-28 03:07:06,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 107 transitions, 230 flow [2024-11-28 03:07:06,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 230 flow [2024-11-28 03:07:06,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:06,373 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;@6c85ad97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:06,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 03:07:06,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:07:06,379 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 03:07:06,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:07:06,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:06,379 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] [2024-11-28 03:07:06,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:06,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1671684895, now seen corresponding path program 1 times [2024-11-28 03:07:06,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:06,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647261901] [2024-11-28 03:07:06,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:06,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:06,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647261901] [2024-11-28 03:07:06,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647261901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:06,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:06,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:06,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536746758] [2024-11-28 03:07:06,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:06,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:06,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:06,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:06,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:06,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2024-11-28 03:07:06,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:06,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:06,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2024-11-28 03:07:06,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:06,625 INFO L124 PetriNetUnfolderBase]: 119/719 cut-off events. [2024-11-28 03:07:06,625 INFO L125 PetriNetUnfolderBase]: For 68/92 co-relation queries the response was YES. [2024-11-28 03:07:06,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 719 events. 119/719 cut-off events. For 68/92 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4222 event pairs, 50 based on Foata normal form. 36/670 useless extension candidates. Maximal degree in co-relation 741. Up to 139 conditions per place. [2024-11-28 03:07:06,631 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 16 selfloop transitions, 4 changer transitions 1/111 dead transitions. [2024-11-28 03:07:06,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 278 flow [2024-11-28 03:07:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-11-28 03:07:06,633 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9252336448598131 [2024-11-28 03:07:06,633 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 297 transitions. [2024-11-28 03:07:06,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 278 flow [2024-11-28 03:07:06,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:07:06,636 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 252 flow [2024-11-28 03:07:06,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2024-11-28 03:07:06,637 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2024-11-28 03:07:06,637 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 252 flow [2024-11-28 03:07:06,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:06,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:06,638 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] [2024-11-28 03:07:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:07:06,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:06,639 INFO L85 PathProgramCache]: Analyzing trace with hash 111039386, now seen corresponding path program 1 times [2024-11-28 03:07:06,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483345496] [2024-11-28 03:07:06,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:06,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:06,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:06,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483345496] [2024-11-28 03:07:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483345496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:06,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792991054] [2024-11-28 03:07:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:06,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:06,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:06,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2024-11-28 03:07:06,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:06,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:06,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2024-11-28 03:07:06,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:07,247 INFO L124 PetriNetUnfolderBase]: 187/1181 cut-off events. [2024-11-28 03:07:07,247 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-28 03:07:07,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1181 events. 187/1181 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8511 event pairs, 130 based on Foata normal form. 1/1083 useless extension candidates. Maximal degree in co-relation 1078. Up to 312 conditions per place. [2024-11-28 03:07:07,256 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 20 selfloop transitions, 2 changer transitions 5/114 dead transitions. [2024-11-28 03:07:07,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 114 transitions, 322 flow [2024-11-28 03:07:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 538 transitions. [2024-11-28 03:07:07,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.838006230529595 [2024-11-28 03:07:07,259 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 252 flow. Second operand 6 states and 538 transitions. [2024-11-28 03:07:07,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 114 transitions, 322 flow [2024-11-28 03:07:07,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 114 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:07,263 INFO L231 Difference]: Finished difference. Result has 117 places, 107 transitions, 266 flow [2024-11-28 03:07:07,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=117, PETRI_TRANSITIONS=107} [2024-11-28 03:07:07,264 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 10 predicate places. [2024-11-28 03:07:07,264 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 107 transitions, 266 flow [2024-11-28 03:07:07,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:07,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:07,265 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] [2024-11-28 03:07:07,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:07:07,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:07,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash -587930660, now seen corresponding path program 1 times [2024-11-28 03:07:07,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:07,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370208331] [2024-11-28 03:07:07,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:07,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:07,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370208331] [2024-11-28 03:07:07,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370208331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:07,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:07,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952848382] [2024-11-28 03:07:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:07,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:07,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:07,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2024-11-28 03:07:07,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 107 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:07,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:07,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2024-11-28 03:07:07,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:08,212 INFO L124 PetriNetUnfolderBase]: 298/1303 cut-off events. [2024-11-28 03:07:08,213 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-11-28 03:07:08,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1303 events. 298/1303 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9887 event pairs, 57 based on Foata normal form. 0/1194 useless extension candidates. Maximal degree in co-relation 1806. Up to 371 conditions per place. [2024-11-28 03:07:08,228 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 37 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2024-11-28 03:07:08,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 122 transitions, 380 flow [2024-11-28 03:07:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2024-11-28 03:07:08,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.794392523364486 [2024-11-28 03:07:08,233 INFO L175 Difference]: Start difference. First operand has 117 places, 107 transitions, 266 flow. Second operand 6 states and 510 transitions. [2024-11-28 03:07:08,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 122 transitions, 380 flow [2024-11-28 03:07:08,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 122 transitions, 368 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:07:08,241 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 262 flow [2024-11-28 03:07:08,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2024-11-28 03:07:08,242 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 7 predicate places. [2024-11-28 03:07:08,243 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 262 flow [2024-11-28 03:07:08,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:08,244 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] [2024-11-28 03:07:08,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:07:08,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:08,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash -3979776, now seen corresponding path program 1 times [2024-11-28 03:07:08,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043536286] [2024-11-28 03:07:08,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:08,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:08,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043536286] [2024-11-28 03:07:08,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043536286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:08,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:08,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:08,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297237519] [2024-11-28 03:07:08,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:08,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:08,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:08,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:08,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-11-28 03:07:08,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:08,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-11-28 03:07:08,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:08,559 INFO L124 PetriNetUnfolderBase]: 165/981 cut-off events. [2024-11-28 03:07:08,559 INFO L125 PetriNetUnfolderBase]: For 205/322 co-relation queries the response was YES. [2024-11-28 03:07:08,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1551 conditions, 981 events. 165/981 cut-off events. For 205/322 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7177 event pairs, 88 based on Foata normal form. 3/871 useless extension candidates. Maximal degree in co-relation 1267. Up to 269 conditions per place. [2024-11-28 03:07:08,567 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 0/115 dead transitions. [2024-11-28 03:07:08,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 115 transitions, 346 flow [2024-11-28 03:07:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-11-28 03:07:08,569 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2024-11-28 03:07:08,569 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 262 flow. Second operand 3 states and 291 transitions. [2024-11-28 03:07:08,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 115 transitions, 346 flow [2024-11-28 03:07:08,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 336 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:08,574 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 308 flow [2024-11-28 03:07:08,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2024-11-28 03:07:08,576 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2024-11-28 03:07:08,577 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 308 flow [2024-11-28 03:07:08,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:08,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:08,578 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] [2024-11-28 03:07:08,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:07:08,578 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:08,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1401784600, now seen corresponding path program 1 times [2024-11-28 03:07:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84592038] [2024-11-28 03:07:08,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84592038] [2024-11-28 03:07:09,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84592038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:09,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398745763] [2024-11-28 03:07:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:09,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:09,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-11-28 03:07:09,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:09,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:09,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-11-28 03:07:09,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:09,696 INFO L124 PetriNetUnfolderBase]: 356/1815 cut-off events. [2024-11-28 03:07:09,697 INFO L125 PetriNetUnfolderBase]: For 306/352 co-relation queries the response was YES. [2024-11-28 03:07:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 1815 events. 356/1815 cut-off events. For 306/352 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15382 event pairs, 177 based on Foata normal form. 3/1659 useless extension candidates. Maximal degree in co-relation 2422. Up to 360 conditions per place. [2024-11-28 03:07:09,712 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 34 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-11-28 03:07:09,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 416 flow [2024-11-28 03:07:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-11-28 03:07:09,716 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8099688473520249 [2024-11-28 03:07:09,716 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 308 flow. Second operand 6 states and 520 transitions. [2024-11-28 03:07:09,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 416 flow [2024-11-28 03:07:09,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:09,723 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 302 flow [2024-11-28 03:07:09,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2024-11-28 03:07:09,725 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2024-11-28 03:07:09,726 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 302 flow [2024-11-28 03:07:09,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:09,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:09,727 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] [2024-11-28 03:07:09,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:07:09,728 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:09,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash 309902969, now seen corresponding path program 1 times [2024-11-28 03:07:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:09,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409472027] [2024-11-28 03:07:09,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:09,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409472027] [2024-11-28 03:07:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409472027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492638534] [2024-11-28 03:07:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:09,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:09,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:10,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 107 [2024-11-28 03:07:10,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:10,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:10,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 107 [2024-11-28 03:07:10,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:10,387 INFO L124 PetriNetUnfolderBase]: 141/992 cut-off events. [2024-11-28 03:07:10,388 INFO L125 PetriNetUnfolderBase]: For 139/167 co-relation queries the response was YES. [2024-11-28 03:07:10,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 992 events. 141/992 cut-off events. For 139/167 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6844 event pairs, 43 based on Foata normal form. 15/943 useless extension candidates. Maximal degree in co-relation 974. Up to 189 conditions per place. [2024-11-28 03:07:10,394 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 23 selfloop transitions, 6 changer transitions 6/123 dead transitions. [2024-11-28 03:07:10,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 123 transitions, 402 flow [2024-11-28 03:07:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2024-11-28 03:07:10,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8411214953271028 [2024-11-28 03:07:10,397 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 302 flow. Second operand 6 states and 540 transitions. [2024-11-28 03:07:10,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 123 transitions, 402 flow [2024-11-28 03:07:10,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 123 transitions, 390 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:10,402 INFO L231 Difference]: Finished difference. Result has 117 places, 110 transitions, 308 flow [2024-11-28 03:07:10,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=308, PETRI_PLACES=117, PETRI_TRANSITIONS=110} [2024-11-28 03:07:10,404 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 10 predicate places. [2024-11-28 03:07:10,405 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 308 flow [2024-11-28 03:07:10,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:10,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:10,406 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] [2024-11-28 03:07:10,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:07:10,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:10,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash 804489469, now seen corresponding path program 1 times [2024-11-28 03:07:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:10,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446309893] [2024-11-28 03:07:10,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:10,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:10,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446309893] [2024-11-28 03:07:10,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446309893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:10,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:10,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:10,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390667448] [2024-11-28 03:07:10,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:10,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:10,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:10,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:10,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:10,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-11-28 03:07:10,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:10,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:10,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-11-28 03:07:10,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:10,628 INFO L124 PetriNetUnfolderBase]: 56/601 cut-off events. [2024-11-28 03:07:10,628 INFO L125 PetriNetUnfolderBase]: For 235/296 co-relation queries the response was YES. [2024-11-28 03:07:10,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 601 events. 56/601 cut-off events. For 235/296 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3608 event pairs, 30 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 867. Up to 119 conditions per place. [2024-11-28 03:07:10,632 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 1/117 dead transitions. [2024-11-28 03:07:10,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 117 transitions, 385 flow [2024-11-28 03:07:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-11-28 03:07:10,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9034267912772586 [2024-11-28 03:07:10,634 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 308 flow. Second operand 3 states and 290 transitions. [2024-11-28 03:07:10,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 117 transitions, 385 flow [2024-11-28 03:07:10,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:07:10,638 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 350 flow [2024-11-28 03:07:10,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2024-11-28 03:07:10,639 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2024-11-28 03:07:10,640 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 350 flow [2024-11-28 03:07:10,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:10,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:10,641 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:07:10,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:07:10,641 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:07:10,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash -385553027, now seen corresponding path program 1 times [2024-11-28 03:07:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477708988] [2024-11-28 03:07:10,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:10,681 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:07:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:10,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:07:10,720 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:07:10,720 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 03:07:10,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 03:07:10,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:07:10,722 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:10,722 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:07:10,722 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:07:10,756 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 03:07:10,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 125 transitions, 277 flow [2024-11-28 03:07:10,808 INFO L124 PetriNetUnfolderBase]: 21/336 cut-off events. [2024-11-28 03:07:10,809 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 03:07:10,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 336 events. 21/336 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 903 event pairs, 1 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 214. Up to 16 conditions per place. [2024-11-28 03:07:10,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 125 transitions, 277 flow [2024-11-28 03:07:10,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 125 transitions, 277 flow [2024-11-28 03:07:10,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:10,815 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c85ad97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:10,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:07:10,821 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:07:10,821 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 03:07:10,821 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:07:10,821 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:10,821 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] [2024-11-28 03:07:10,822 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:10,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1938679425, now seen corresponding path program 1 times [2024-11-28 03:07:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508924539] [2024-11-28 03:07:10,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:10,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:10,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508924539] [2024-11-28 03:07:10,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508924539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:10,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:10,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389196433] [2024-11-28 03:07:10,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:10,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:10,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:10,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:10,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 125 [2024-11-28 03:07:10,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:10,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:10,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 125 [2024-11-28 03:07:10,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:11,640 INFO L124 PetriNetUnfolderBase]: 1071/3960 cut-off events. [2024-11-28 03:07:11,640 INFO L125 PetriNetUnfolderBase]: For 416/521 co-relation queries the response was YES. [2024-11-28 03:07:11,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 3960 events. 1071/3960 cut-off events. For 416/521 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 35699 event pairs, 542 based on Foata normal form. 180/3699 useless extension candidates. Maximal degree in co-relation 4604. Up to 1110 conditions per place. [2024-11-28 03:07:11,673 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 23 selfloop transitions, 5 changer transitions 1/132 dead transitions. [2024-11-28 03:07:11,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 347 flow [2024-11-28 03:07:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-28 03:07:11,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-11-28 03:07:11,675 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 277 flow. Second operand 3 states and 344 transitions. [2024-11-28 03:07:11,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 347 flow [2024-11-28 03:07:11,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:07:11,680 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 307 flow [2024-11-28 03:07:11,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2024-11-28 03:07:11,682 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 4 predicate places. [2024-11-28 03:07:11,682 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 307 flow [2024-11-28 03:07:11,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:11,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:11,683 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] [2024-11-28 03:07:11,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:07:11,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:11,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash -662420262, now seen corresponding path program 1 times [2024-11-28 03:07:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64063927] [2024-11-28 03:07:11,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:11,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:11,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:11,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64063927] [2024-11-28 03:07:11,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64063927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:11,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:11,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:11,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780580618] [2024-11-28 03:07:11,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:11,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:11,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:11,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:11,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:11,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 125 [2024-11-28 03:07:11,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 307 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:11,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:11,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 125 [2024-11-28 03:07:11,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:13,178 INFO L124 PetriNetUnfolderBase]: 1315/6208 cut-off events. [2024-11-28 03:07:13,178 INFO L125 PetriNetUnfolderBase]: For 412/420 co-relation queries the response was YES. [2024-11-28 03:07:13,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9025 conditions, 6208 events. 1315/6208 cut-off events. For 412/420 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 63045 event pairs, 754 based on Foata normal form. 1/5481 useless extension candidates. Maximal degree in co-relation 5371. Up to 1711 conditions per place. [2024-11-28 03:07:13,239 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 24 selfloop transitions, 2 changer transitions 5/133 dead transitions. [2024-11-28 03:07:13,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 133 transitions, 385 flow [2024-11-28 03:07:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2024-11-28 03:07:13,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8346666666666667 [2024-11-28 03:07:13,242 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 307 flow. Second operand 6 states and 626 transitions. [2024-11-28 03:07:13,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 133 transitions, 385 flow [2024-11-28 03:07:13,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 133 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:13,258 INFO L231 Difference]: Finished difference. Result has 136 places, 126 transitions, 319 flow [2024-11-28 03:07:13,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=136, PETRI_TRANSITIONS=126} [2024-11-28 03:07:13,259 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 10 predicate places. [2024-11-28 03:07:13,259 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 126 transitions, 319 flow [2024-11-28 03:07:13,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:13,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:13,260 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] [2024-11-28 03:07:13,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:07:13,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:13,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1361390308, now seen corresponding path program 1 times [2024-11-28 03:07:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362390676] [2024-11-28 03:07:13,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:13,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:13,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362390676] [2024-11-28 03:07:13,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362390676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:13,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:13,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:13,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123763980] [2024-11-28 03:07:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:13,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:13,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:13,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:13,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:13,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 125 [2024-11-28 03:07:13,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 126 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:13,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:13,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 125 [2024-11-28 03:07:13,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:15,223 INFO L124 PetriNetUnfolderBase]: 2000/6634 cut-off events. [2024-11-28 03:07:15,223 INFO L125 PetriNetUnfolderBase]: For 564/564 co-relation queries the response was YES. [2024-11-28 03:07:15,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10863 conditions, 6634 events. 2000/6634 cut-off events. For 564/564 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 66099 event pairs, 899 based on Foata normal form. 0/5999 useless extension candidates. Maximal degree in co-relation 10527. Up to 2164 conditions per place. [2024-11-28 03:07:15,281 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 49 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-11-28 03:07:15,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 149 transitions, 473 flow [2024-11-28 03:07:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2024-11-28 03:07:15,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.808 [2024-11-28 03:07:15,285 INFO L175 Difference]: Start difference. First operand has 136 places, 126 transitions, 319 flow. Second operand 6 states and 606 transitions. [2024-11-28 03:07:15,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 149 transitions, 473 flow [2024-11-28 03:07:15,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 149 transitions, 461 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:07:15,302 INFO L231 Difference]: Finished difference. Result has 133 places, 125 transitions, 315 flow [2024-11-28 03:07:15,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=133, PETRI_TRANSITIONS=125} [2024-11-28 03:07:15,303 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 7 predicate places. [2024-11-28 03:07:15,304 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 125 transitions, 315 flow [2024-11-28 03:07:15,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:15,305 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:15,305 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] [2024-11-28 03:07:15,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:07:15,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:15,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:15,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1301682320, now seen corresponding path program 1 times [2024-11-28 03:07:15,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374407033] [2024-11-28 03:07:15,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:15,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:15,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374407033] [2024-11-28 03:07:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374407033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:15,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:15,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:15,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722452991] [2024-11-28 03:07:15,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:15,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:15,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:15,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:15,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-11-28 03:07:15,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 125 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:15,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:15,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-11-28 03:07:15,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:16,799 INFO L124 PetriNetUnfolderBase]: 1740/6509 cut-off events. [2024-11-28 03:07:16,799 INFO L125 PetriNetUnfolderBase]: For 1543/2148 co-relation queries the response was YES. [2024-11-28 03:07:16,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10834 conditions, 6509 events. 1740/6509 cut-off events. For 1543/2148 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 67739 event pairs, 967 based on Foata normal form. 10/5720 useless extension candidates. Maximal degree in co-relation 9068. Up to 2240 conditions per place. [2024-11-28 03:07:16,850 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 29 selfloop transitions, 9 changer transitions 0/140 dead transitions. [2024-11-28 03:07:16,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 449 flow [2024-11-28 03:07:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:16,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2024-11-28 03:07:16,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2024-11-28 03:07:16,852 INFO L175 Difference]: Start difference. First operand has 133 places, 125 transitions, 315 flow. Second operand 3 states and 340 transitions. [2024-11-28 03:07:16,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 449 flow [2024-11-28 03:07:16,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 439 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:16,857 INFO L231 Difference]: Finished difference. Result has 132 places, 132 transitions, 381 flow [2024-11-28 03:07:16,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=132, PETRI_TRANSITIONS=132} [2024-11-28 03:07:16,858 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2024-11-28 03:07:16,859 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 132 transitions, 381 flow [2024-11-28 03:07:16,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:16,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:16,859 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] [2024-11-28 03:07:16,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:07:16,859 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:16,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:16,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2033029429, now seen corresponding path program 1 times [2024-11-28 03:07:16,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:16,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900763593] [2024-11-28 03:07:16,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:17,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:17,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900763593] [2024-11-28 03:07:17,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900763593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:17,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:17,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:17,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101464800] [2024-11-28 03:07:17,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:17,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:17,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:17,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:17,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:17,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2024-11-28 03:07:17,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:17,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:17,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2024-11-28 03:07:17,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:18,967 INFO L124 PetriNetUnfolderBase]: 2856/10331 cut-off events. [2024-11-28 03:07:18,967 INFO L125 PetriNetUnfolderBase]: For 1725/2289 co-relation queries the response was YES. [2024-11-28 03:07:19,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17463 conditions, 10331 events. 2856/10331 cut-off events. For 1725/2289 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 114443 event pairs, 1400 based on Foata normal form. 17/9185 useless extension candidates. Maximal degree in co-relation 13963. Up to 2139 conditions per place. [2024-11-28 03:07:19,045 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 46 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2024-11-28 03:07:19,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 155 transitions, 529 flow [2024-11-28 03:07:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2024-11-28 03:07:19,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8213333333333334 [2024-11-28 03:07:19,048 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 381 flow. Second operand 6 states and 616 transitions. [2024-11-28 03:07:19,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 155 transitions, 529 flow [2024-11-28 03:07:19,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 155 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:19,062 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 371 flow [2024-11-28 03:07:19,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2024-11-28 03:07:19,063 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2024-11-28 03:07:19,063 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 371 flow [2024-11-28 03:07:19,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:19,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:19,064 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] [2024-11-28 03:07:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:07:19,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:19,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 40832454, now seen corresponding path program 1 times [2024-11-28 03:07:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443354137] [2024-11-28 03:07:19,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:19,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:19,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443354137] [2024-11-28 03:07:19,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443354137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:19,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:19,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:19,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547415599] [2024-11-28 03:07:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:19,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:19,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:19,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:19,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:19,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2024-11-28 03:07:19,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:19,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:19,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2024-11-28 03:07:19,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:20,362 INFO L124 PetriNetUnfolderBase]: 1305/6108 cut-off events. [2024-11-28 03:07:20,362 INFO L125 PetriNetUnfolderBase]: For 975/1236 co-relation queries the response was YES. [2024-11-28 03:07:20,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10066 conditions, 6108 events. 1305/6108 cut-off events. For 975/1236 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 62999 event pairs, 532 based on Foata normal form. 65/5601 useless extension candidates. Maximal degree in co-relation 4987. Up to 1228 conditions per place. [2024-11-28 03:07:20,401 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 38 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-28 03:07:20,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 150 transitions, 508 flow [2024-11-28 03:07:20,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2024-11-28 03:07:20,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.844 [2024-11-28 03:07:20,404 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 371 flow. Second operand 6 states and 633 transitions. [2024-11-28 03:07:20,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 150 transitions, 508 flow [2024-11-28 03:07:20,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 150 transitions, 496 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:20,412 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 387 flow [2024-11-28 03:07:20,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-28 03:07:20,413 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 10 predicate places. [2024-11-28 03:07:20,413 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 387 flow [2024-11-28 03:07:20,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:20,413 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:20,414 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] [2024-11-28 03:07:20,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:07:20,414 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:20,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash -310036710, now seen corresponding path program 1 times [2024-11-28 03:07:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906344691] [2024-11-28 03:07:20,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:20,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:20,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:20,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906344691] [2024-11-28 03:07:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906344691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:20,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:20,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:20,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726079813] [2024-11-28 03:07:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:20,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:20,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:20,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:20,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:20,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-11-28 03:07:20,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:20,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:20,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-11-28 03:07:20,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:21,355 INFO L124 PetriNetUnfolderBase]: 1088/4747 cut-off events. [2024-11-28 03:07:21,355 INFO L125 PetriNetUnfolderBase]: For 2403/2621 co-relation queries the response was YES. [2024-11-28 03:07:21,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8849 conditions, 4747 events. 1088/4747 cut-off events. For 2403/2621 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49163 event pairs, 589 based on Foata normal form. 7/4393 useless extension candidates. Maximal degree in co-relation 8119. Up to 1450 conditions per place. [2024-11-28 03:07:21,387 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 31 selfloop transitions, 13 changer transitions 0/149 dead transitions. [2024-11-28 03:07:21,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 149 transitions, 548 flow [2024-11-28 03:07:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2024-11-28 03:07:21,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.904 [2024-11-28 03:07:21,390 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 387 flow. Second operand 3 states and 339 transitions. [2024-11-28 03:07:21,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 149 transitions, 548 flow [2024-11-28 03:07:21,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 149 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:07:21,397 INFO L231 Difference]: Finished difference. Result has 137 places, 142 transitions, 497 flow [2024-11-28 03:07:21,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=137, PETRI_TRANSITIONS=142} [2024-11-28 03:07:21,398 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 11 predicate places. [2024-11-28 03:07:21,398 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 497 flow [2024-11-28 03:07:21,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:21,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:21,399 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] [2024-11-28 03:07:21,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:07:21,399 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:21,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash -305102546, now seen corresponding path program 1 times [2024-11-28 03:07:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278795064] [2024-11-28 03:07:21,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:21,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:21,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278795064] [2024-11-28 03:07:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278795064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:21,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:21,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551573072] [2024-11-28 03:07:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:21,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:21,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:21,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:21,551 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 125 [2024-11-28 03:07:21,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:21,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:21,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 125 [2024-11-28 03:07:21,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:21,797 INFO L124 PetriNetUnfolderBase]: 124/1629 cut-off events. [2024-11-28 03:07:21,797 INFO L125 PetriNetUnfolderBase]: For 710/827 co-relation queries the response was YES. [2024-11-28 03:07:21,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2647 conditions, 1629 events. 124/1629 cut-off events. For 710/827 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13430 event pairs, 20 based on Foata normal form. 21/1580 useless extension candidates. Maximal degree in co-relation 1069. Up to 142 conditions per place. [2024-11-28 03:07:21,805 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 12 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2024-11-28 03:07:21,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 137 transitions, 470 flow [2024-11-28 03:07:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-28 03:07:21,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.928 [2024-11-28 03:07:21,807 INFO L175 Difference]: Start difference. First operand has 137 places, 142 transitions, 497 flow. Second operand 3 states and 348 transitions. [2024-11-28 03:07:21,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 137 transitions, 470 flow [2024-11-28 03:07:21,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 456 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:21,812 INFO L231 Difference]: Finished difference. Result has 137 places, 132 transitions, 401 flow [2024-11-28 03:07:21,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=137, PETRI_TRANSITIONS=132} [2024-11-28 03:07:21,813 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 11 predicate places. [2024-11-28 03:07:21,813 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 132 transitions, 401 flow [2024-11-28 03:07:21,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:21,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:21,814 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:07:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:07:21,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:21,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash -731868241, now seen corresponding path program 1 times [2024-11-28 03:07:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:21,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341438474] [2024-11-28 03:07:21,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:21,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:21,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341438474] [2024-11-28 03:07:21,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341438474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:21,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683295115] [2024-11-28 03:07:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:21,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:21,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:21,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:21,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-11-28 03:07:21,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:21,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:21,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-11-28 03:07:21,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:22,161 INFO L124 PetriNetUnfolderBase]: 203/1827 cut-off events. [2024-11-28 03:07:22,161 INFO L125 PetriNetUnfolderBase]: For 1279/1344 co-relation queries the response was YES. [2024-11-28 03:07:22,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3402 conditions, 1827 events. 203/1827 cut-off events. For 1279/1344 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 16015 event pairs, 134 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2856. Up to 435 conditions per place. [2024-11-28 03:07:22,169 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 25 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2024-11-28 03:07:22,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 137 transitions, 483 flow [2024-11-28 03:07:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:22,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2024-11-28 03:07:22,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8853333333333333 [2024-11-28 03:07:22,171 INFO L175 Difference]: Start difference. First operand has 137 places, 132 transitions, 401 flow. Second operand 3 states and 332 transitions. [2024-11-28 03:07:22,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 137 transitions, 483 flow [2024-11-28 03:07:22,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 137 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:07:22,177 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 435 flow [2024-11-28 03:07:22,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=435, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2024-11-28 03:07:22,178 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2024-11-28 03:07:22,178 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 435 flow [2024-11-28 03:07:22,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:22,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:22,179 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:22,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:07:22,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:07:22,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:22,180 INFO L85 PathProgramCache]: Analyzing trace with hash 401071311, now seen corresponding path program 1 times [2024-11-28 03:07:22,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:22,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752677718] [2024-11-28 03:07:22,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:22,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:22,222 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:07:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:22,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:07:22,262 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-28 03:07:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-28 03:07:22,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:07:22,264 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:22,265 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:07:22,265 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 03:07:22,300 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 03:07:22,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 326 flow [2024-11-28 03:07:22,374 INFO L124 PetriNetUnfolderBase]: 43/562 cut-off events. [2024-11-28 03:07:22,375 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 03:07:22,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 562 events. 43/562 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2000 event pairs, 6 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 356. Up to 32 conditions per place. [2024-11-28 03:07:22,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 326 flow [2024-11-28 03:07:22,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 143 transitions, 326 flow [2024-11-28 03:07:22,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:22,384 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;@6c85ad97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:22,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:07:22,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:07:22,389 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 03:07:22,389 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:07:22,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:22,389 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] [2024-11-28 03:07:22,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:22,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -287615391, now seen corresponding path program 1 times [2024-11-28 03:07:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818231937] [2024-11-28 03:07:22,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:22,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:22,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818231937] [2024-11-28 03:07:22,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818231937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:22,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:22,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:22,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937786335] [2024-11-28 03:07:22,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:22,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:22,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:22,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:22,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:22,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2024-11-28 03:07:22,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:22,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:22,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2024-11-28 03:07:22,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:25,501 INFO L124 PetriNetUnfolderBase]: 7859/23223 cut-off events. [2024-11-28 03:07:25,501 INFO L125 PetriNetUnfolderBase]: For 2255/2606 co-relation queries the response was YES. [2024-11-28 03:07:25,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35573 conditions, 23223 events. 7859/23223 cut-off events. For 2255/2606 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 267454 event pairs, 4292 based on Foata normal form. 899/21904 useless extension candidates. Maximal degree in co-relation 28335. Up to 7653 conditions per place. [2024-11-28 03:07:25,630 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 30 selfloop transitions, 6 changer transitions 1/153 dead transitions. [2024-11-28 03:07:25,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 418 flow [2024-11-28 03:07:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:25,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2024-11-28 03:07:25,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9114219114219114 [2024-11-28 03:07:25,632 INFO L175 Difference]: Start difference. First operand has 145 places, 143 transitions, 326 flow. Second operand 3 states and 391 transitions. [2024-11-28 03:07:25,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 418 flow [2024-11-28 03:07:25,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 153 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:07:25,639 INFO L231 Difference]: Finished difference. Result has 149 places, 144 transitions, 364 flow [2024-11-28 03:07:25,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=149, PETRI_TRANSITIONS=144} [2024-11-28 03:07:25,640 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 4 predicate places. [2024-11-28 03:07:25,640 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 144 transitions, 364 flow [2024-11-28 03:07:25,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:25,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:25,641 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] [2024-11-28 03:07:25,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:07:25,642 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:25,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1238020454, now seen corresponding path program 1 times [2024-11-28 03:07:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800555179] [2024-11-28 03:07:25,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:25,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:25,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800555179] [2024-11-28 03:07:25,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800555179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:25,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:25,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:25,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015829866] [2024-11-28 03:07:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:25,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:25,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:25,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:25,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 143 [2024-11-28 03:07:25,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 144 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:25,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:25,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 143 [2024-11-28 03:07:25,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:30,280 INFO L124 PetriNetUnfolderBase]: 9298/33531 cut-off events. [2024-11-28 03:07:30,281 INFO L125 PetriNetUnfolderBase]: For 2629/2717 co-relation queries the response was YES. [2024-11-28 03:07:30,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50460 conditions, 33531 events. 9298/33531 cut-off events. For 2629/2717 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 429045 event pairs, 7446 based on Foata normal form. 1/29634 useless extension candidates. Maximal degree in co-relation 31413. Up to 10742 conditions per place. [2024-11-28 03:07:30,677 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 28 selfloop transitions, 2 changer transitions 5/152 dead transitions. [2024-11-28 03:07:30,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 152 transitions, 450 flow [2024-11-28 03:07:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2024-11-28 03:07:30,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8321678321678322 [2024-11-28 03:07:30,680 INFO L175 Difference]: Start difference. First operand has 149 places, 144 transitions, 364 flow. Second operand 6 states and 714 transitions. [2024-11-28 03:07:30,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 152 transitions, 450 flow [2024-11-28 03:07:30,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 152 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:30,765 INFO L231 Difference]: Finished difference. Result has 155 places, 145 transitions, 374 flow [2024-11-28 03:07:30,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=374, PETRI_PLACES=155, PETRI_TRANSITIONS=145} [2024-11-28 03:07:30,766 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2024-11-28 03:07:30,766 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 145 transitions, 374 flow [2024-11-28 03:07:30,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:30,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:30,767 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] [2024-11-28 03:07:30,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:07:30,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:30,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:30,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1936990500, now seen corresponding path program 1 times [2024-11-28 03:07:30,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:30,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866036891] [2024-11-28 03:07:30,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:30,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:31,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:31,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866036891] [2024-11-28 03:07:31,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866036891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:31,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:31,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:31,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859793721] [2024-11-28 03:07:31,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:31,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:31,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:31,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:31,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:31,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2024-11-28 03:07:31,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 145 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:31,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:31,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2024-11-28 03:07:31,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:36,585 INFO L124 PetriNetUnfolderBase]: 12654/34911 cut-off events. [2024-11-28 03:07:36,585 INFO L125 PetriNetUnfolderBase]: For 3229/3233 co-relation queries the response was YES. [2024-11-28 03:07:36,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57801 conditions, 34911 events. 12654/34911 cut-off events. For 3229/3233 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 423344 event pairs, 6023 based on Foata normal form. 0/31281 useless extension candidates. Maximal degree in co-relation 26413. Up to 12817 conditions per place. [2024-11-28 03:07:36,856 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 61 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2024-11-28 03:07:36,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 176 transitions, 568 flow [2024-11-28 03:07:36,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:36,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-11-28 03:07:36,859 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2024-11-28 03:07:36,859 INFO L175 Difference]: Start difference. First operand has 155 places, 145 transitions, 374 flow. Second operand 6 states and 702 transitions. [2024-11-28 03:07:36,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 176 transitions, 568 flow [2024-11-28 03:07:36,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 176 transitions, 556 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 03:07:36,915 INFO L231 Difference]: Finished difference. Result has 152 places, 144 transitions, 370 flow [2024-11-28 03:07:36,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=152, PETRI_TRANSITIONS=144} [2024-11-28 03:07:36,916 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 7 predicate places. [2024-11-28 03:07:36,916 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 144 transitions, 370 flow [2024-11-28 03:07:36,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:36,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:36,917 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] [2024-11-28 03:07:36,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:07:36,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:36,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1961393040, now seen corresponding path program 1 times [2024-11-28 03:07:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:36,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146840937] [2024-11-28 03:07:36,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146840937] [2024-11-28 03:07:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146840937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:36,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365726605] [2024-11-28 03:07:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:36,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:36,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:36,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:36,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-11-28 03:07:36,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 144 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:36,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:36,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-11-28 03:07:36,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:42,455 INFO L124 PetriNetUnfolderBase]: 13629/40864 cut-off events. [2024-11-28 03:07:42,456 INFO L125 PetriNetUnfolderBase]: For 10548/13607 co-relation queries the response was YES. [2024-11-28 03:07:42,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70264 conditions, 40864 events. 13629/40864 cut-off events. For 10548/13607 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 523458 event pairs, 7860 based on Foata normal form. 36/36075 useless extension candidates. Maximal degree in co-relation 58384. Up to 15880 conditions per place. [2024-11-28 03:07:42,781 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 39 selfloop transitions, 11 changer transitions 0/165 dead transitions. [2024-11-28 03:07:42,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 165 transitions, 556 flow [2024-11-28 03:07:42,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:07:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-11-28 03:07:42,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9067599067599068 [2024-11-28 03:07:42,789 INFO L175 Difference]: Start difference. First operand has 152 places, 144 transitions, 370 flow. Second operand 3 states and 389 transitions. [2024-11-28 03:07:42,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 165 transitions, 556 flow [2024-11-28 03:07:42,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 165 transitions, 546 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:42,796 INFO L231 Difference]: Finished difference. Result has 151 places, 153 transitions, 456 flow [2024-11-28 03:07:42,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=151, PETRI_TRANSITIONS=153} [2024-11-28 03:07:42,797 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 6 predicate places. [2024-11-28 03:07:42,797 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 153 transitions, 456 flow [2024-11-28 03:07:42,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:42,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:42,798 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] [2024-11-28 03:07:42,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:07:42,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:42,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:42,799 INFO L85 PathProgramCache]: Analyzing trace with hash 576688404, now seen corresponding path program 1 times [2024-11-28 03:07:42,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:42,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13259802] [2024-11-28 03:07:42,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:42,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:07:43,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:43,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13259802] [2024-11-28 03:07:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13259802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702528696] [2024-11-28 03:07:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:43,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:43,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:43,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:43,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2024-11-28 03:07:43,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 153 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:43,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:43,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2024-11-28 03:07:43,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:49,575 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([590] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [130#L1024true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 170#true, 44#L1022-3true, 145#true, 56#L1023-5true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 140#true, Black: 150#(= |#race~data~0| 0), 175#true, 144#true, 142#true]) [2024-11-28 03:07:49,576 INFO L294 olderBase$Statistics]: this new event has 148 ancestors and is cut-off event [2024-11-28 03:07:49,576 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2024-11-28 03:07:49,576 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-28 03:07:49,576 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-28 03:07:49,783 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][182], [24#L1023-5true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 170#true, 56#L1023-5true, 118#L1038-1true, 97#L1023-6true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 144#true]) [2024-11-28 03:07:49,783 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,783 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,783 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,783 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,878 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([590] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 170#true, 145#true, 56#L1023-5true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 112#L1023-5true, 140#true, 175#true, Black: 150#(= |#race~data~0| 0), 21#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 144#true, 142#true]) [2024-11-28 03:07:49,878 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,878 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-28 03:07:49,878 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:49,878 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-28 03:07:50,643 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][177], [130#L1024true, 24#L1023-5true, 170#true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 56#L1023-5true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 144#true]) [2024-11-28 03:07:50,643 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2024-11-28 03:07:50,643 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:50,643 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:50,643 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:51,641 INFO L124 PetriNetUnfolderBase]: 19867/57038 cut-off events. [2024-11-28 03:07:51,642 INFO L125 PetriNetUnfolderBase]: For 9377/13245 co-relation queries the response was YES. [2024-11-28 03:07:51,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99827 conditions, 57038 events. 19867/57038 cut-off events. For 9377/13245 co-relation queries the response was YES. Maximal size of possible extension queue 1934. Compared 746141 event pairs, 9570 based on Foata normal form. 80/49858 useless extension candidates. Maximal degree in co-relation 79001. Up to 12590 conditions per place. [2024-11-28 03:07:52,056 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 58 selfloop transitions, 5 changer transitions 0/184 dead transitions. [2024-11-28 03:07:52,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 184 transitions, 644 flow [2024-11-28 03:07:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 712 transitions. [2024-11-28 03:07:52,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8298368298368298 [2024-11-28 03:07:52,058 INFO L175 Difference]: Start difference. First operand has 151 places, 153 transitions, 456 flow. Second operand 6 states and 712 transitions. [2024-11-28 03:07:52,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 184 transitions, 644 flow [2024-11-28 03:07:52,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 184 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:07:52,191 INFO L231 Difference]: Finished difference. Result has 153 places, 152 transitions, 442 flow [2024-11-28 03:07:52,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=153, PETRI_TRANSITIONS=152} [2024-11-28 03:07:52,192 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2024-11-28 03:07:52,192 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 152 transitions, 442 flow [2024-11-28 03:07:52,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:52,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:52,193 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] [2024-11-28 03:07:52,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:07:52,193 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:52,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1379042701, now seen corresponding path program 1 times [2024-11-28 03:07:52,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:52,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928783934] [2024-11-28 03:07:52,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:07:52,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:52,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928783934] [2024-11-28 03:07:52,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928783934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:52,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:52,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:52,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522215514] [2024-11-28 03:07:52,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:52,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:52,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:52,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:52,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 143 [2024-11-28 03:07:52,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 152 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:52,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:52,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 143 [2024-11-28 03:07:52,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:07:55,881 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][173], [24#L1023-5true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 56#L1023-5true, 118#L1038-1true, 97#L1023-6true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 144#true]) [2024-11-28 03:07:55,881 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-11-28 03:07:55,881 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:55,881 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:55,881 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-11-28 03:07:56,705 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][172], [130#L1024true, 24#L1023-5true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 56#L1023-5true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 144#true]) [2024-11-28 03:07:56,705 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2024-11-28 03:07:56,705 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:56,705 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:56,706 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-11-28 03:07:57,285 INFO L124 PetriNetUnfolderBase]: 10063/35805 cut-off events. [2024-11-28 03:07:57,285 INFO L125 PetriNetUnfolderBase]: For 6128/8102 co-relation queries the response was YES. [2024-11-28 03:07:57,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60768 conditions, 35805 events. 10063/35805 cut-off events. For 6128/8102 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 466531 event pairs, 5238 based on Foata normal form. 284/31943 useless extension candidates. Maximal degree in co-relation 31242. Up to 7614 conditions per place. [2024-11-28 03:07:57,568 INFO L140 encePairwiseOnDemand]: 136/143 looper letters, 47 selfloop transitions, 6 changer transitions 0/176 dead transitions. [2024-11-28 03:07:57,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 610 flow [2024-11-28 03:07:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:07:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-28 03:07:57,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-11-28 03:07:57,571 INFO L175 Difference]: Start difference. First operand has 153 places, 152 transitions, 442 flow. Second operand 6 states and 726 transitions. [2024-11-28 03:07:57,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 610 flow [2024-11-28 03:07:57,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 176 transitions, 598 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:07:57,592 INFO L231 Difference]: Finished difference. Result has 155 places, 154 transitions, 458 flow [2024-11-28 03:07:57,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2024-11-28 03:07:57,593 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2024-11-28 03:07:57,593 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 458 flow [2024-11-28 03:07:57,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:57,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:07:57,594 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] [2024-11-28 03:07:57,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:07:57,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:07:57,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1460789145, now seen corresponding path program 1 times [2024-11-28 03:07:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:57,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142082155] [2024-11-28 03:07:57,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:07:57,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:57,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142082155] [2024-11-28 03:07:57,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142082155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:57,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:57,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:57,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830234029] [2024-11-28 03:07:57,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:57,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:57,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:57,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:57,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:57,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-11-28 03:07:57,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:07:57,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:07:57,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-11-28 03:07:57,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:08:03,019 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([541] L1037-1-->L1038: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][156], [189#true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 32#L1024true, 145#true, 97#L1023-6true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, Black: 148#true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), 68#L1038true, 142#true]) [2024-11-28 03:08:03,020 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2024-11-28 03:08:03,020 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2024-11-28 03:08:03,020 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2024-11-28 03:08:03,020 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2024-11-28 03:08:03,031 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([541] L1037-1-->L1038: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][156], [189#true, Black: 155#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 117#L1024-3true, 97#L1023-6true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, Black: 148#true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), 68#L1038true, 142#true]) [2024-11-28 03:08:03,031 INFO L294 olderBase$Statistics]: this new event has 172 ancestors and is cut-off event [2024-11-28 03:08:03,031 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2024-11-28 03:08:03,031 INFO L297 olderBase$Statistics]: existing Event has 172 ancestors and is cut-off event [2024-11-28 03:08:03,031 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2024-11-28 03:08:03,100 INFO L124 PetriNetUnfolderBase]: 11773/38290 cut-off events. [2024-11-28 03:08:03,100 INFO L125 PetriNetUnfolderBase]: For 22027/23808 co-relation queries the response was YES. [2024-11-28 03:08:03,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74357 conditions, 38290 events. 11773/38290 cut-off events. For 22027/23808 co-relation queries the response was YES. Maximal size of possible extension queue 1515. Compared 514110 event pairs, 6499 based on Foata normal form. 24/34724 useless extension candidates. Maximal degree in co-relation 67309. Up to 13617 conditions per place. [2024-11-28 03:08:03,435 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 43 selfloop transitions, 18 changer transitions 0/179 dead transitions. [2024-11-28 03:08:03,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 179 transitions, 703 flow [2024-11-28 03:08:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:08:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2024-11-28 03:08:03,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9044289044289044 [2024-11-28 03:08:03,437 INFO L175 Difference]: Start difference. First operand has 155 places, 154 transitions, 458 flow. Second operand 3 states and 388 transitions. [2024-11-28 03:08:03,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 179 transitions, 703 flow [2024-11-28 03:08:03,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 179 transitions, 695 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:08:03,458 INFO L231 Difference]: Finished difference. Result has 156 places, 168 transitions, 628 flow [2024-11-28 03:08:03,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=156, PETRI_TRANSITIONS=168} [2024-11-28 03:08:03,459 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2024-11-28 03:08:03,459 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 168 transitions, 628 flow [2024-11-28 03:08:03,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:03,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:08:03,460 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] [2024-11-28 03:08:03,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:08:03,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:08:03,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 390703629, now seen corresponding path program 1 times [2024-11-28 03:08:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112457879] [2024-11-28 03:08:03,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:03,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:08:03,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:03,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112457879] [2024-11-28 03:08:03,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112457879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:03,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:08:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297256510] [2024-11-28 03:08:03,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:08:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:03,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:08:03,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:08:03,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-11-28 03:08:03,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 168 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:03,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:08:03,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-11-28 03:08:03,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:08:04,930 INFO L124 PetriNetUnfolderBase]: 660/6291 cut-off events. [2024-11-28 03:08:04,931 INFO L125 PetriNetUnfolderBase]: For 3341/3863 co-relation queries the response was YES. [2024-11-28 03:08:04,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10688 conditions, 6291 events. 660/6291 cut-off events. For 3341/3863 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 72154 event pairs, 237 based on Foata normal form. 177/6091 useless extension candidates. Maximal degree in co-relation 8380. Up to 678 conditions per place. [2024-11-28 03:08:04,965 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 16 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2024-11-28 03:08:04,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 158 transitions, 561 flow [2024-11-28 03:08:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:08:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2024-11-28 03:08:04,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9254079254079254 [2024-11-28 03:08:04,967 INFO L175 Difference]: Start difference. First operand has 156 places, 168 transitions, 628 flow. Second operand 3 states and 397 transitions. [2024-11-28 03:08:04,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 158 transitions, 561 flow [2024-11-28 03:08:04,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 158 transitions, 547 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:08:04,977 INFO L231 Difference]: Finished difference. Result has 156 places, 151 transitions, 468 flow [2024-11-28 03:08:04,977 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=156, PETRI_TRANSITIONS=151} [2024-11-28 03:08:04,978 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2024-11-28 03:08:04,978 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 151 transitions, 468 flow [2024-11-28 03:08:04,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:04,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:08:04,978 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:08:04,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:08:04,979 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:08:04,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash 467563167, now seen corresponding path program 1 times [2024-11-28 03:08:04,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:04,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318193788] [2024-11-28 03:08:04,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:08:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:05,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318193788] [2024-11-28 03:08:05,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318193788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:05,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:05,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:08:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330644281] [2024-11-28 03:08:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:05,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:08:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:05,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:08:05,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:08:05,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-11-28 03:08:05,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 151 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:05,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:08:05,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-11-28 03:08:05,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:08:06,539 INFO L124 PetriNetUnfolderBase]: 1120/7887 cut-off events. [2024-11-28 03:08:06,539 INFO L125 PetriNetUnfolderBase]: For 6402/6521 co-relation queries the response was YES. [2024-11-28 03:08:06,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15139 conditions, 7887 events. 1120/7887 cut-off events. For 6402/6521 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 94549 event pairs, 661 based on Foata normal form. 4/7384 useless extension candidates. Maximal degree in co-relation 11930. Up to 2068 conditions per place. [2024-11-28 03:08:06,565 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 33 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-28 03:08:06,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 158 transitions, 582 flow [2024-11-28 03:08:06,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:08:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-11-28 03:08:06,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8811188811188811 [2024-11-28 03:08:06,567 INFO L175 Difference]: Start difference. First operand has 156 places, 151 transitions, 468 flow. Second operand 3 states and 378 transitions. [2024-11-28 03:08:06,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 158 transitions, 582 flow [2024-11-28 03:08:06,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 158 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:08:06,572 INFO L231 Difference]: Finished difference. Result has 159 places, 154 transitions, 500 flow [2024-11-28 03:08:06,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=159, PETRI_TRANSITIONS=154} [2024-11-28 03:08:06,573 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2024-11-28 03:08:06,573 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 154 transitions, 500 flow [2024-11-28 03:08:06,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:06,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:08:06,574 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:06,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:08:06,574 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:08:06,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:06,575 INFO L85 PathProgramCache]: Analyzing trace with hash 187513224, now seen corresponding path program 1 times [2024-11-28 03:08:06,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:06,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881238721] [2024-11-28 03:08:06,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:08:06,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:06,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881238721] [2024-11-28 03:08:06,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881238721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:06,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:06,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:08:06,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112099622] [2024-11-28 03:08:06,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:06,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:08:06,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:06,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:08:06,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:08:06,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-11-28 03:08:06,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 154 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:06,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:08:06,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-11-28 03:08:06,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:08:07,806 INFO L124 PetriNetUnfolderBase]: 1121/7928 cut-off events. [2024-11-28 03:08:07,806 INFO L125 PetriNetUnfolderBase]: For 8520/8672 co-relation queries the response was YES. [2024-11-28 03:08:07,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15851 conditions, 7928 events. 1121/7928 cut-off events. For 8520/8672 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 95322 event pairs, 707 based on Foata normal form. 4/7482 useless extension candidates. Maximal degree in co-relation 12732. Up to 2095 conditions per place. [2024-11-28 03:08:07,844 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 33 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-11-28 03:08:07,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 160 transitions, 605 flow [2024-11-28 03:08:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:08:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2024-11-28 03:08:07,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-11-28 03:08:07,845 INFO L175 Difference]: Start difference. First operand has 159 places, 154 transitions, 500 flow. Second operand 3 states and 377 transitions. [2024-11-28 03:08:07,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 160 transitions, 605 flow [2024-11-28 03:08:07,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 160 transitions, 591 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:08:07,853 INFO L231 Difference]: Finished difference. Result has 161 places, 157 transitions, 528 flow [2024-11-28 03:08:07,853 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=161, PETRI_TRANSITIONS=157} [2024-11-28 03:08:07,853 INFO L279 CegarLoopForPetriNet]: 145 programPoint places, 16 predicate places. [2024-11-28 03:08:07,853 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 157 transitions, 528 flow [2024-11-28 03:08:07,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:07,854 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:08:07,854 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:08:07,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:08:07,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:08:07,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:07,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1981491718, now seen corresponding path program 1 times [2024-11-28 03:08:07,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:07,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446127423] [2024-11-28 03:08:07,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:07,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:08:07,881 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:08:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:08:07,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:08:07,912 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 03:08:07,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 03:08:07,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 03:08:07,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 03:08:07,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:08:07,914 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:08,002 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-28 03:08:08,003 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:08:08,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:08 BasicIcfg [2024-11-28 03:08:08,015 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:08:08,016 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:08:08,016 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:08:08,016 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:08:08,017 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:02" (3/4) ... [2024-11-28 03:08:08,019 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 03:08:08,144 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-11-28 03:08:08,216 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:08:08,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:08:08,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:08:08,220 INFO L158 Benchmark]: Toolchain (without parser) took 67767.62ms. Allocated memory was 117.4MB in the beginning and 13.5GB in the end (delta: 13.4GB). Free memory was 90.9MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2024-11-28 03:08:08,221 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:08:08,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1013.94ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 62.9MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:08:08,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.00ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:08:08,221 INFO L158 Benchmark]: Boogie Preprocessor took 33.17ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:08:08,222 INFO L158 Benchmark]: RCFGBuilder took 552.77ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 45.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:08:08,222 INFO L158 Benchmark]: TraceAbstraction took 65891.42ms. Allocated memory was 117.4MB in the beginning and 13.5GB in the end (delta: 13.4GB). Free memory was 44.4MB in the beginning and 10.2GB in the end (delta: -10.2GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2024-11-28 03:08:08,222 INFO L158 Benchmark]: Witness Printer took 203.55ms. Allocated memory is still 13.5GB. Free memory was 10.2GB in the beginning and 10.2GB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:08:08,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1013.94ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 62.9MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.00ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.17ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 59.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 552.77ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 45.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 65891.42ms. Allocated memory was 117.4MB in the beginning and 13.5GB in the end (delta: 13.4GB). Free memory was 44.4MB in the beginning and 10.2GB in the end (delta: -10.2GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 203.55ms. Allocated memory is still 13.5GB. Free memory was 10.2GB in the beginning and 10.2GB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=2] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1034] 0 int i = 0; VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1025] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1034] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1034] 0 i += 2 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1034] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1038] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 242 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 5 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 120 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 457 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 306 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 684 IncrementalHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 79 mSDtfsCounter, 684 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 137 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.5s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 600 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 128 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 906 IncrementalHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 26 mSDtfsCounter, 906 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=497occurred in iteration=7, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 869 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 154 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 45.6s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 43.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 695 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1119 IncrementalHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 151 mSDtfsCounter, 1119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=7, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 676 NumberOfCodeBlocks, 676 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 565 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:08:08,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c2e9b3b-79bb-4880-a35a-b3f45539edb1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)