./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.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_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/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_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/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_e6420545-0d7e-4f7d-91c8-907535110bc6/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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:38:07,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:38:07,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:38:07,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:38:07,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:38:07,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:38:07,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:38:07,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:38:07,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:38:07,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:38:07,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:38:07,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:38:07,272 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:38:07,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:38:07,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:38:07,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:38:07,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:38:07,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:38:07,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:38:07,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:38:07,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:38:07,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:38:07,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:38:07,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:38:07,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:38:07,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:38:07,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:07,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:38:07,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:38:07,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:38:07,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:07,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:38:07,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:38:07,278 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:38:07,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:38:07,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:38:07,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:38:07,279 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:38:07,279 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:38:07,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:38:07,280 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:38:07,280 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_e6420545-0d7e-4f7d-91c8-907535110bc6/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 -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-11-28 03:38:07,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:38:07,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:38:07,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:38:07,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:38:07,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:38:07,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-28 03:38:11,261 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/data/cf07fdb0e/7bfe4e4470d646de9b4ff27017b8a2ce/FLAGc02d656bf [2024-11-28 03:38:11,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:38:11,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-28 03:38:11,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/data/cf07fdb0e/7bfe4e4470d646de9b4ff27017b8a2ce/FLAGc02d656bf [2024-11-28 03:38:11,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/data/cf07fdb0e/7bfe4e4470d646de9b4ff27017b8a2ce [2024-11-28 03:38:11,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:38:11,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:38:11,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:11,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:38:11,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:38:11,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:11" (1/1) ... [2024-11-28 03:38:11,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c2607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:11, skipping insertion in model container [2024-11-28 03:38:11,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:11" (1/1) ... [2024-11-28 03:38:11,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:38:12,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:12,537 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:38:12,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:12,694 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:38:12,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12 WrapperNode [2024-11-28 03:38:12,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:12,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:12,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:38:12,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:38:12,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,768 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 132 [2024-11-28 03:38:12,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:12,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:38:12,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:38:12,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:38:12,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:38:12,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:38:12,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:38:12,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:38:12,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:12,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:12,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:12,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:38:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:38:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:38:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:38:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:38:12,923 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 03:38:13,073 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:38:13,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:38:13,665 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:38:13,666 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:38:13,716 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:38:13,716 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:38:13,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:13 BoogieIcfgContainer [2024-11-28 03:38:13,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:38:13,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:38:13,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:38:13,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:38:13,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:38:11" (1/3) ... [2024-11-28 03:38:13,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236e2525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:13, skipping insertion in model container [2024-11-28 03:38:13,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12" (2/3) ... [2024-11-28 03:38:13,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236e2525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:13, skipping insertion in model container [2024-11-28 03:38:13,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:13" (3/3) ... [2024-11-28 03:38:13,729 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-11-28 03:38:13,749 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:38:13,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.i that has 2 procedures, 160 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-11-28 03:38:13,751 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:38:13,852 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:38:13,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 161 transitions, 326 flow [2024-11-28 03:38:14,037 INFO L124 PetriNetUnfolderBase]: 2/160 cut-off events. [2024-11-28 03:38:14,042 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:38:14,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 2/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2024-11-28 03:38:14,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 161 transitions, 326 flow [2024-11-28 03:38:14,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 160 transitions, 323 flow [2024-11-28 03:38:14,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:38:14,093 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;@c53db02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:38:14,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:38:14,155 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:38:14,156 INFO L124 PetriNetUnfolderBase]: 2/98 cut-off events. [2024-11-28 03:38:14,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:38:14,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:14,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:14,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:14,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash 772957152, now seen corresponding path program 1 times [2024-11-28 03:38:14,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:14,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878801709] [2024-11-28 03:38:14,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:14,766 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 03:38:14,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:14,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878801709] [2024-11-28 03:38:14,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878801709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:14,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:14,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:38:14,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921493857] [2024-11-28 03:38:14,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:14,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:38:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:14,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:38:14,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:38:14,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-28 03:38:14,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 03:38:14,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:14,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-28 03:38:14,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:15,078 INFO L124 PetriNetUnfolderBase]: 11/298 cut-off events. [2024-11-28 03:38:15,078 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:38:15,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 298 events. 11/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 589 event pairs, 10 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2024-11-28 03:38:15,087 INFO L140 encePairwiseOnDemand]: 157/161 looper letters, 12 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2024-11-28 03:38:15,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 351 flow [2024-11-28 03:38:15,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:38:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:38:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-28 03:38:15,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-28 03:38:15,118 INFO L175 Difference]: Start difference. First operand has 162 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-28 03:38:15,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 351 flow [2024-11-28 03:38:15,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:38:15,132 INFO L231 Difference]: Finished difference. Result has 164 places, 160 transitions, 332 flow [2024-11-28 03:38:15,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=164, PETRI_TRANSITIONS=160} [2024-11-28 03:38:15,139 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2024-11-28 03:38:15,140 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 332 flow [2024-11-28 03:38:15,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 03:38:15,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:15,141 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:15,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:38:15,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:15,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash 300546856, now seen corresponding path program 1 times [2024-11-28 03:38:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:15,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13629397] [2024-11-28 03:38:15,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:15,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:15,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13629397] [2024-11-28 03:38:15,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13629397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:15,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006277569] [2024-11-28 03:38:15,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:15,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:15,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:15,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:15,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:38:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:15,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:38:15,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:16,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:16,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006277569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:16,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:16,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:38:16,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885401324] [2024-11-28 03:38:16,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:16,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:38:16,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:16,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:38:16,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:38:16,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:38:16,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 03:38:16,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:16,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:38:16,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:16,437 INFO L124 PetriNetUnfolderBase]: 11/305 cut-off events. [2024-11-28 03:38:16,437 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:38:16,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 305 events. 11/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 583 event pairs, 10 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2024-11-28 03:38:16,440 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 16 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-11-28 03:38:16,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 400 flow [2024-11-28 03:38:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:38:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:38:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1323 transitions. [2024-11-28 03:38:16,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2024-11-28 03:38:16,453 INFO L175 Difference]: Start difference. First operand has 164 places, 160 transitions, 332 flow. Second operand 9 states and 1323 transitions. [2024-11-28 03:38:16,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 400 flow [2024-11-28 03:38:16,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:38:16,458 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-11-28 03:38:16,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-11-28 03:38:16,462 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2024-11-28 03:38:16,462 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-11-28 03:38:16,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 03:38:16,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:16,464 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:16,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:38:16,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:16,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:16,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:16,675 INFO L85 PathProgramCache]: Analyzing trace with hash 737070632, now seen corresponding path program 2 times [2024-11-28 03:38:16,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:16,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716423084] [2024-11-28 03:38:16,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:16,733 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:38:16,733 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:38:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:38:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716423084] [2024-11-28 03:38:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716423084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:17,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:17,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:38:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285398621] [2024-11-28 03:38:17,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:17,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:38:17,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:17,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:38:17,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:38:18,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-11-28 03:38:18,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 03:38:18,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:18,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-11-28 03:38:18,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:19,131 INFO L124 PetriNetUnfolderBase]: 285/1089 cut-off events. [2024-11-28 03:38:19,132 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:38:19,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1089 events. 285/1089 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6305 event pairs, 68 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1628. Up to 287 conditions per place. [2024-11-28 03:38:19,148 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 98 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2024-11-28 03:38:19,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 276 transitions, 880 flow [2024-11-28 03:38:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:38:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:38:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2024-11-28 03:38:19,155 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9544513457556936 [2024-11-28 03:38:19,155 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 922 transitions. [2024-11-28 03:38:19,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 276 transitions, 880 flow [2024-11-28 03:38:19,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 874 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:38:19,164 INFO L231 Difference]: Finished difference. Result has 183 places, 212 transitions, 690 flow [2024-11-28 03:38:19,165 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=183, PETRI_TRANSITIONS=212} [2024-11-28 03:38:19,165 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2024-11-28 03:38:19,166 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 212 transitions, 690 flow [2024-11-28 03:38:19,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 03:38:19,167 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:19,167 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:19,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:38:19,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:19,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash 915687368, now seen corresponding path program 1 times [2024-11-28 03:38:19,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076151148] [2024-11-28 03:38:19,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:19,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076151148] [2024-11-28 03:38:19,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076151148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305693806] [2024-11-28 03:38:19,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:19,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:19,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:38:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:19,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:38:19,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:19,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:19,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305693806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:19,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:19,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:38:19,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143218053] [2024-11-28 03:38:19,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:19,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:38:19,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:19,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:38:19,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:38:19,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:38:19,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 212 transitions, 690 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 03:38:19,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:19,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:38:19,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:20,599 INFO L124 PetriNetUnfolderBase]: 127/838 cut-off events. [2024-11-28 03:38:20,600 INFO L125 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2024-11-28 03:38:20,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 838 events. 127/838 cut-off events. For 135/150 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4659 event pairs, 45 based on Foata normal form. 4/822 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2024-11-28 03:38:20,608 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 20 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2024-11-28 03:38:20,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 230 transitions, 860 flow [2024-11-28 03:38:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:38:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:38:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3069 transitions. [2024-11-28 03:38:20,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9077196095829636 [2024-11-28 03:38:20,622 INFO L175 Difference]: Start difference. First operand has 183 places, 212 transitions, 690 flow. Second operand 21 states and 3069 transitions. [2024-11-28 03:38:20,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 230 transitions, 860 flow [2024-11-28 03:38:20,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 230 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:38:20,637 INFO L231 Difference]: Finished difference. Result has 208 places, 225 transitions, 820 flow [2024-11-28 03:38:20,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=820, PETRI_PLACES=208, PETRI_TRANSITIONS=225} [2024-11-28 03:38:20,640 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2024-11-28 03:38:20,641 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 225 transitions, 820 flow [2024-11-28 03:38:20,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 03:38:20,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:20,645 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:20,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:20,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:20,846 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:20,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 648716744, now seen corresponding path program 2 times [2024-11-28 03:38:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147321603] [2024-11-28 03:38:20,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:20,890 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:38:20,892 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:38:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:38:21,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:21,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147321603] [2024-11-28 03:38:21,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147321603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:21,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:21,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:38:21,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040289797] [2024-11-28 03:38:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:21,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:38:21,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:21,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:38:21,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:38:22,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 161 [2024-11-28 03:38:22,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 225 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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 03:38:22,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:22,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 161 [2024-11-28 03:38:22,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:22,445 INFO L124 PetriNetUnfolderBase]: 141/900 cut-off events. [2024-11-28 03:38:22,445 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2024-11-28 03:38:22,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 900 events. 141/900 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5136 event pairs, 49 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2024-11-28 03:38:22,456 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2024-11-28 03:38:22,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 232 transitions, 886 flow [2024-11-28 03:38:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:38:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:38:22,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-28 03:38:22,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-11-28 03:38:22,460 INFO L175 Difference]: Start difference. First operand has 208 places, 225 transitions, 820 flow. Second operand 6 states and 873 transitions. [2024-11-28 03:38:22,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 232 transitions, 886 flow [2024-11-28 03:38:22,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 862 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:38:22,475 INFO L231 Difference]: Finished difference. Result has 206 places, 224 transitions, 804 flow [2024-11-28 03:38:22,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=206, PETRI_TRANSITIONS=224} [2024-11-28 03:38:22,476 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 44 predicate places. [2024-11-28 03:38:22,478 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 224 transitions, 804 flow [2024-11-28 03:38:22,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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 03:38:22,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:22,479 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:22,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:38:22,480 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:22,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:22,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2020714067, now seen corresponding path program 1 times [2024-11-28 03:38:22,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:22,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608175663] [2024-11-28 03:38:22,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:22,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:23,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608175663] [2024-11-28 03:38:23,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608175663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265002821] [2024-11-28 03:38:23,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:23,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:23,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:23,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:23,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:38:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:23,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:38:23,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:23,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:38:23,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265002821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:23,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:38:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:38:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211086488] [2024-11-28 03:38:23,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:23,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:38:23,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:23,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:38:23,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:38:23,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 03:38:23,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 224 transitions, 804 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 03:38:23,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:23,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 03:38:23,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:24,625 INFO L124 PetriNetUnfolderBase]: 127/852 cut-off events. [2024-11-28 03:38:24,625 INFO L125 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2024-11-28 03:38:24,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 852 events. 127/852 cut-off events. For 252/267 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4655 event pairs, 45 based on Foata normal form. 3/836 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2024-11-28 03:38:24,633 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 23 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2024-11-28 03:38:24,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 241 transitions, 1032 flow [2024-11-28 03:38:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:38:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 03:38:24,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4376 transitions. [2024-11-28 03:38:24,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9060041407867495 [2024-11-28 03:38:24,648 INFO L175 Difference]: Start difference. First operand has 206 places, 224 transitions, 804 flow. Second operand 30 states and 4376 transitions. [2024-11-28 03:38:24,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 241 transitions, 1032 flow [2024-11-28 03:38:24,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 241 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:38:24,660 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 946 flow [2024-11-28 03:38:24,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=946, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2024-11-28 03:38:24,662 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2024-11-28 03:38:24,662 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 946 flow [2024-11-28 03:38:24,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 03:38:24,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:24,664 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:24,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:38:24,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:24,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:24,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1370402203, now seen corresponding path program 2 times [2024-11-28 03:38:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:24,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584622126] [2024-11-28 03:38:24,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:24,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:38:24,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:38:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:38:25,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584622126] [2024-11-28 03:38:25,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584622126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:25,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:25,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:38:25,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202762718] [2024-11-28 03:38:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:25,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:38:25,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:25,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:38:25,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:38:26,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 161 [2024-11-28 03:38:26,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 03:38:26,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:26,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 161 [2024-11-28 03:38:26,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:26,622 INFO L124 PetriNetUnfolderBase]: 445/1510 cut-off events. [2024-11-28 03:38:26,623 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2024-11-28 03:38:26,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1510 events. 445/1510 cut-off events. For 726/760 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9431 event pairs, 117 based on Foata normal form. 24/1510 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2024-11-28 03:38:26,635 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 109 selfloop transitions, 53 changer transitions 6/325 dead transitions. [2024-11-28 03:38:26,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 325 transitions, 1650 flow [2024-11-28 03:38:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:38:26,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:38:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2024-11-28 03:38:26,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2024-11-28 03:38:26,639 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 946 flow. Second operand 6 states and 882 transitions. [2024-11-28 03:38:26,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 325 transitions, 1650 flow [2024-11-28 03:38:26,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 325 transitions, 1604 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 03:38:26,656 INFO L231 Difference]: Finished difference. Result has 226 places, 285 transitions, 1406 flow [2024-11-28 03:38:26,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=226, PETRI_TRANSITIONS=285} [2024-11-28 03:38:26,658 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 64 predicate places. [2024-11-28 03:38:26,660 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 285 transitions, 1406 flow [2024-11-28 03:38:26,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 03:38:26,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:26,661 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:26,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:38:26,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:26,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:26,662 INFO L85 PathProgramCache]: Analyzing trace with hash -472050044, now seen corresponding path program 1 times [2024-11-28 03:38:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:26,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509445235] [2024-11-28 03:38:26,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:38:27,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:27,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509445235] [2024-11-28 03:38:27,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509445235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:27,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:38:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171374659] [2024-11-28 03:38:27,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:27,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:38:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:27,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:38:27,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:38:28,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-11-28 03:38:28,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 285 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 03:38:28,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:28,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-11-28 03:38:28,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:28,489 INFO L124 PetriNetUnfolderBase]: 255/1247 cut-off events. [2024-11-28 03:38:28,489 INFO L125 PetriNetUnfolderBase]: For 1032/1105 co-relation queries the response was YES. [2024-11-28 03:38:28,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 1247 events. 255/1247 cut-off events. For 1032/1105 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7955 event pairs, 57 based on Foata normal form. 9/1235 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2024-11-28 03:38:28,502 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 25 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2024-11-28 03:38:28,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 292 transitions, 1480 flow [2024-11-28 03:38:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:38:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:38:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2024-11-28 03:38:28,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8830227743271222 [2024-11-28 03:38:28,505 INFO L175 Difference]: Start difference. First operand has 226 places, 285 transitions, 1406 flow. Second operand 6 states and 853 transitions. [2024-11-28 03:38:28,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 292 transitions, 1480 flow [2024-11-28 03:38:28,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 292 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-28 03:38:28,525 INFO L231 Difference]: Finished difference. Result has 230 places, 284 transitions, 1406 flow [2024-11-28 03:38:28,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=230, PETRI_TRANSITIONS=284} [2024-11-28 03:38:28,526 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 68 predicate places. [2024-11-28 03:38:28,526 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 284 transitions, 1406 flow [2024-11-28 03:38:28,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 03:38:28,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:28,527 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:28,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:38:28,527 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:28,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:28,529 INFO L85 PathProgramCache]: Analyzing trace with hash -942026374, now seen corresponding path program 1 times [2024-11-28 03:38:28,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:28,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494637358] [2024-11-28 03:38:28,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:38:29,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:29,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494637358] [2024-11-28 03:38:29,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494637358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:29,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:29,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:38:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528080631] [2024-11-28 03:38:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:29,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:38:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:29,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:38:29,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:38:29,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 161 [2024-11-28 03:38:29,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 284 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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 03:38:29,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:29,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 161 [2024-11-28 03:38:29,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:30,490 INFO L124 PetriNetUnfolderBase]: 594/1878 cut-off events. [2024-11-28 03:38:30,491 INFO L125 PetriNetUnfolderBase]: For 2540/2585 co-relation queries the response was YES. [2024-11-28 03:38:30,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 1878 events. 594/1878 cut-off events. For 2540/2585 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12342 event pairs, 150 based on Foata normal form. 25/1870 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2024-11-28 03:38:30,509 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 122 selfloop transitions, 58 changer transitions 39/376 dead transitions. [2024-11-28 03:38:30,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 2368 flow [2024-11-28 03:38:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:38:30,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:38:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2024-11-28 03:38:30,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8944099378881988 [2024-11-28 03:38:30,514 INFO L175 Difference]: Start difference. First operand has 230 places, 284 transitions, 1406 flow. Second operand 6 states and 864 transitions. [2024-11-28 03:38:30,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 2368 flow [2024-11-28 03:38:30,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 376 transitions, 2358 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:38:30,537 INFO L231 Difference]: Finished difference. Result has 234 places, 311 transitions, 1804 flow [2024-11-28 03:38:30,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1804, PETRI_PLACES=234, PETRI_TRANSITIONS=311} [2024-11-28 03:38:30,540 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2024-11-28 03:38:30,540 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 311 transitions, 1804 flow [2024-11-28 03:38:30,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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 03:38:30,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:38:30,541 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:30,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:38:30,542 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:38:30,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash -783761815, now seen corresponding path program 1 times [2024-11-28 03:38:30,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:30,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168339322] [2024-11-28 03:38:30,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 03:38:30,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168339322] [2024-11-28 03:38:30,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168339322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:30,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:30,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:38:30,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9478501] [2024-11-28 03:38:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:30,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:38:30,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:30,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:38:30,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:38:30,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 161 [2024-11-28 03:38:30,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 311 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 03:38:30,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:38:30,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 161 [2024-11-28 03:38:30,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:38:31,005 INFO L124 PetriNetUnfolderBase]: 6/275 cut-off events. [2024-11-28 03:38:31,005 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-28 03:38:31,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 275 events. 6/275 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 441. Up to 23 conditions per place. [2024-11-28 03:38:31,008 INFO L140 encePairwiseOnDemand]: 157/161 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2024-11-28 03:38:31,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 185 transitions, 738 flow [2024-11-28 03:38:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:38:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:38:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-28 03:38:31,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9648033126293996 [2024-11-28 03:38:31,010 INFO L175 Difference]: Start difference. First operand has 234 places, 311 transitions, 1804 flow. Second operand 3 states and 466 transitions. [2024-11-28 03:38:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 185 transitions, 738 flow [2024-11-28 03:38:31,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 185 transitions, 600 flow, removed 30 selfloop flow, removed 29 redundant places. [2024-11-28 03:38:31,018 INFO L231 Difference]: Finished difference. Result has 203 places, 0 transitions, 0 flow [2024-11-28 03:38:31,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=203, PETRI_TRANSITIONS=0} [2024-11-28 03:38:31,021 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 41 predicate places. [2024-11-28 03:38:31,021 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 0 transitions, 0 flow [2024-11-28 03:38:31,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 03:38:31,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-28 03:38:31,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 03:38:31,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 03:38:31,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 03:38:31,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:38:31,032 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2024-11-28 03:38:31,041 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:38:31,041 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:38:31,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:38:31 BasicIcfg [2024-11-28 03:38:31,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:38:31,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:38:31,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:38:31,055 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:38:31,056 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:13" (3/4) ... [2024-11-28 03:38:31,058 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:38:31,063 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 03:38:31,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 03:38:31,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:38:31,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:38:31,153 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:38:31,154 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:38:31,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:38:31,155 INFO L158 Benchmark]: Toolchain (without parser) took 19301.14ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 100.3MB in the beginning and 212.3MB in the end (delta: -112.0MB). Peak memory consumption was 164.6MB. Max. memory is 16.1GB. [2024-11-28 03:38:31,155 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:31,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.83ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 78.8MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:38:31,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.33ms. Allocated memory is still 142.6MB. Free memory was 78.8MB in the beginning and 76.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:31,156 INFO L158 Benchmark]: Boogie Preprocessor took 65.12ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 74.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:31,156 INFO L158 Benchmark]: RCFGBuilder took 878.60ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 53.0MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:38:31,156 INFO L158 Benchmark]: TraceAbstraction took 17334.35ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 52.4MB in the beginning and 216.5MB in the end (delta: -164.2MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2024-11-28 03:38:31,157 INFO L158 Benchmark]: Witness Printer took 99.44ms. Allocated memory is still 419.4MB. Free memory was 216.5MB in the beginning and 212.3MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:38:31,160 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.83ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 78.8MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.33ms. Allocated memory is still 142.6MB. Free memory was 78.8MB in the beginning and 76.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.12ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 74.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 878.60ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 53.0MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17334.35ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 52.4MB in the beginning and 216.5MB in the end (delta: -164.2MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. * Witness Printer took 99.44ms. Allocated memory is still 419.4MB. Free memory was 216.5MB in the beginning and 212.3MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 188 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.1s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1127 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 731 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2532 IncrementalHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 16 mSDtfsCounter, 2532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 621 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1804occurred in iteration=9, InterpolantAutomatonStates: 96, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1566 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2680 SizeOfPredicates, 22 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1073/1466 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:38:31,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6420545-0d7e-4f7d-91c8-907535110bc6/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 Result: TRUE