./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.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_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/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_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/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_cfddb32a-5bd2-4786-b104-de061fc6d029/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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:23:54,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:23:54,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:23:54,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:23:54,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:23:54,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:23:54,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:23:54,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:23:54,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:23:54,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:23:54,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:23:54,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:23:54,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:23:54,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:23:54,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:23:54,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:23:54,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:23:54,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:54,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:54,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:54,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:23:54,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:54,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:23:54,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:23:54,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:23:54,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:23:54,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:23:54,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:23:54,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:23:54,692 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_cfddb32a-5bd2-4786-b104-de061fc6d029/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 -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-28 04:23:55,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:23:55,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:23:55,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:23:55,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:23:55,102 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:23:55,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-28 04:23:58,325 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/data/626117bc1/9663ea7a563143248cd7a5848e2e6e60/FLAGe816b6f13 [2024-11-28 04:23:58,806 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:23:58,810 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-28 04:23:58,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/data/626117bc1/9663ea7a563143248cd7a5848e2e6e60/FLAGe816b6f13 [2024-11-28 04:23:58,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/data/626117bc1/9663ea7a563143248cd7a5848e2e6e60 [2024-11-28 04:23:58,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:23:58,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:23:58,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:23:58,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:23:58,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:23:58,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:23:58" (1/1) ... [2024-11-28 04:23:58,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4658cce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:58, skipping insertion in model container [2024-11-28 04:23:58,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:23:58" (1/1) ... [2024-11-28 04:23:58,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:23:59,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:23:59,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:23:59,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:23:59,833 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:23:59,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59 WrapperNode [2024-11-28 04:23:59,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:23:59,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:23:59,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:23:59,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:23:59,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,920 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 287 [2024-11-28 04:23:59,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:23:59,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:23:59,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:23:59,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:23:59,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,992 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:23:59,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:24:00,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:24:00,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:24:00,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:24:00,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:24:00,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:24:00,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:24:00,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:24:00,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (1/1) ... [2024-11-28 04:24:00,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:24:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:00,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:24:00,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfddb32a-5bd2-4786-b104-de061fc6d029/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:24:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:24:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:24:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:24:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:24:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:24:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:24:00,114 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 04:24:00,316 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:24:00,318 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:24:01,033 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:24:01,033 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:24:01,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:24:01,121 INFO L312 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-28 04:24:01,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:01 BoogieIcfgContainer [2024-11-28 04:24:01,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:24:01,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:24:01,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:24:01,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:24:01,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:23:58" (1/3) ... [2024-11-28 04:24:01,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbd5ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:01, skipping insertion in model container [2024-11-28 04:24:01,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:59" (2/3) ... [2024-11-28 04:24:01,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbd5ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:24:01, skipping insertion in model container [2024-11-28 04:24:01,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:24:01" (3/3) ... [2024-11-28 04:24:01,137 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-28 04:24:01,159 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:24:01,161 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_79-equ_racefree.i that has 2 procedures, 268 locations, 1 initial locations, 12 loop locations, and 12 error locations. [2024-11-28 04:24:01,161 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:24:01,292 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:24:01,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 299 transitions, 605 flow [2024-11-28 04:24:01,616 INFO L124 PetriNetUnfolderBase]: 46/428 cut-off events. [2024-11-28 04:24:01,622 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:24:01,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 428 events. 46/428 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1733 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2024-11-28 04:24:01,644 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 299 transitions, 605 flow [2024-11-28 04:24:01,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 297 transitions, 601 flow [2024-11-28 04:24:01,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:01,680 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;@626a6e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:01,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 04:24:01,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:24:01,705 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-28 04:24:01,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:24:01,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:01,706 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] [2024-11-28 04:24:01,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:24:01,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:01,714 INFO L85 PathProgramCache]: Analyzing trace with hash 636827231, now seen corresponding path program 1 times [2024-11-28 04:24:01,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:01,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926949975] [2024-11-28 04:24:01,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:03,327 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 04:24:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926949975] [2024-11-28 04:24:03,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926949975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:03,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:03,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:24:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473838330] [2024-11-28 04:24:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:03,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:24:03,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:03,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:24:03,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:24:04,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 299 [2024-11-28 04:24:04,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 297 transitions, 601 flow. Second operand has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 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 04:24:04,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:04,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 299 [2024-11-28 04:24:04,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:06,147 INFO L124 PetriNetUnfolderBase]: 1365/5236 cut-off events. [2024-11-28 04:24:06,148 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:24:06,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8008 conditions, 5236 events. 1365/5236 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 46503 event pairs, 997 based on Foata normal form. 732/5500 useless extension candidates. Maximal degree in co-relation 7752. Up to 2548 conditions per place. [2024-11-28 04:24:06,191 INFO L140 encePairwiseOnDemand]: 246/299 looper letters, 107 selfloop transitions, 86 changer transitions 0/384 dead transitions. [2024-11-28 04:24:06,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 384 transitions, 1161 flow [2024-11-28 04:24:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:24:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:24:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1438 transitions. [2024-11-28 04:24:06,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8015607580824972 [2024-11-28 04:24:06,228 INFO L175 Difference]: Start difference. First operand has 270 places, 297 transitions, 601 flow. Second operand 6 states and 1438 transitions. [2024-11-28 04:24:06,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 384 transitions, 1161 flow [2024-11-28 04:24:06,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 384 transitions, 1161 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:24:06,255 INFO L231 Difference]: Finished difference. Result has 276 places, 352 transitions, 1107 flow [2024-11-28 04:24:06,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1107, PETRI_PLACES=276, PETRI_TRANSITIONS=352} [2024-11-28 04:24:06,263 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 6 predicate places. [2024-11-28 04:24:06,264 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 352 transitions, 1107 flow [2024-11-28 04:24:06,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 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 04:24:06,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:06,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:06,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:24:06,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:24:06,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:06,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1688298422, now seen corresponding path program 1 times [2024-11-28 04:24:06,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:06,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393276330] [2024-11-28 04:24:06,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:06,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:06,446 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 04:24:06,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:06,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393276330] [2024-11-28 04:24:06,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393276330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:06,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:06,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:06,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490203803] [2024-11-28 04:24:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:06,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:06,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:06,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:06,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 299 [2024-11-28 04:24:06,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 352 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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 04:24:06,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:06,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 299 [2024-11-28 04:24:06,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:07,130 INFO L124 PetriNetUnfolderBase]: 265/1917 cut-off events. [2024-11-28 04:24:07,130 INFO L125 PetriNetUnfolderBase]: For 149/165 co-relation queries the response was YES. [2024-11-28 04:24:07,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 1917 events. 265/1917 cut-off events. For 149/165 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14771 event pairs, 77 based on Foata normal form. 1/1768 useless extension candidates. Maximal degree in co-relation 2671. Up to 235 conditions per place. [2024-11-28 04:24:07,140 INFO L140 encePairwiseOnDemand]: 296/299 looper letters, 30 selfloop transitions, 3 changer transitions 0/360 dead transitions. [2024-11-28 04:24:07,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 360 transitions, 1189 flow [2024-11-28 04:24:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:24:07,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2024-11-28 04:24:07,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.862876254180602 [2024-11-28 04:24:07,145 INFO L175 Difference]: Start difference. First operand has 276 places, 352 transitions, 1107 flow. Second operand 3 states and 774 transitions. [2024-11-28 04:24:07,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 360 transitions, 1189 flow [2024-11-28 04:24:07,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 360 transitions, 1189 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:24:07,172 INFO L231 Difference]: Finished difference. Result has 279 places, 352 transitions, 1118 flow [2024-11-28 04:24:07,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=279, PETRI_TRANSITIONS=352} [2024-11-28 04:24:07,173 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 9 predicate places. [2024-11-28 04:24:07,173 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 352 transitions, 1118 flow [2024-11-28 04:24:07,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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 04:24:07,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:07,176 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:07,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:24:07,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:24:07,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1410376974, now seen corresponding path program 1 times [2024-11-28 04:24:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:07,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547267519] [2024-11-28 04:24:07,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:07,226 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:24:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:07,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:24:07,287 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:24:07,289 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-28 04:24:07,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-28 04:24:07,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-28 04:24:07,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-28 04:24:07,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-28 04:24:07,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-28 04:24:07,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-28 04:24:07,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-28 04:24:07,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:24:07,295 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 04:24:07,299 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:24:07,299 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:24:07,444 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:24:07,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 401 transitions, 818 flow [2024-11-28 04:24:07,657 INFO L124 PetriNetUnfolderBase]: 77/687 cut-off events. [2024-11-28 04:24:07,658 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:24:07,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 687 events. 77/687 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3324 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 430. Up to 12 conditions per place. [2024-11-28 04:24:07,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 401 transitions, 818 flow [2024-11-28 04:24:07,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 399 transitions, 814 flow [2024-11-28 04:24:07,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:07,682 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;@626a6e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:07,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 04:24:07,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:24:07,702 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-28 04:24:07,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:24:07,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:07,704 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] [2024-11-28 04:24:07,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:24:07,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:07,705 INFO L85 PathProgramCache]: Analyzing trace with hash -252970401, now seen corresponding path program 1 times [2024-11-28 04:24:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642200552] [2024-11-28 04:24:07,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:08,435 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 04:24:08,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:08,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642200552] [2024-11-28 04:24:08,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642200552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:08,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:08,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:24:08,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637942883] [2024-11-28 04:24:08,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:08,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:24:08,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:08,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:24:08,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:24:09,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 401 [2024-11-28 04:24:09,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 399 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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 04:24:09,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:09,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 401 [2024-11-28 04:24:09,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:39,110 INFO L124 PetriNetUnfolderBase]: 83151/197368 cut-off events. [2024-11-28 04:24:39,111 INFO L125 PetriNetUnfolderBase]: For 1038/1038 co-relation queries the response was YES. [2024-11-28 04:24:39,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322583 conditions, 197368 events. 83151/197368 cut-off events. For 1038/1038 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 2601302 event pairs, 59498 based on Foata normal form. 36297/220322 useless extension candidates. Maximal degree in co-relation 214283. Up to 117106 conditions per place. [2024-11-28 04:24:40,787 INFO L140 encePairwiseOnDemand]: 316/401 looper letters, 170 selfloop transitions, 166 changer transitions 0/585 dead transitions. [2024-11-28 04:24:40,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 585 transitions, 1863 flow [2024-11-28 04:24:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:24:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:24:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1995 transitions. [2024-11-28 04:24:40,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8291770573566085 [2024-11-28 04:24:40,797 INFO L175 Difference]: Start difference. First operand has 360 places, 399 transitions, 814 flow. Second operand 6 states and 1995 transitions. [2024-11-28 04:24:40,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 585 transitions, 1863 flow [2024-11-28 04:24:40,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 585 transitions, 1863 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:24:40,823 INFO L231 Difference]: Finished difference. Result has 364 places, 520 transitions, 1812 flow [2024-11-28 04:24:40,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1812, PETRI_PLACES=364, PETRI_TRANSITIONS=520} [2024-11-28 04:24:40,827 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 4 predicate places. [2024-11-28 04:24:40,828 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 520 transitions, 1812 flow [2024-11-28 04:24:40,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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 04:24:40,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:40,830 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:40,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:24:40,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:24:40,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:40,832 INFO L85 PathProgramCache]: Analyzing trace with hash -565649750, now seen corresponding path program 1 times [2024-11-28 04:24:40,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:40,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945621693] [2024-11-28 04:24:40,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:40,932 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 04:24:40,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:40,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945621693] [2024-11-28 04:24:40,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945621693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:40,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:40,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094283295] [2024-11-28 04:24:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:40,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:40,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:40,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:40,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:40,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 401 [2024-11-28 04:24:40,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 520 transitions, 1812 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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 04:24:40,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:40,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 401 [2024-11-28 04:24:40,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:51,496 INFO L124 PetriNetUnfolderBase]: 20082/75776 cut-off events. [2024-11-28 04:24:51,496 INFO L125 PetriNetUnfolderBase]: For 8127/8827 co-relation queries the response was YES. [2024-11-28 04:24:51,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124103 conditions, 75776 events. 20082/75776 cut-off events. For 8127/8827 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 1072715 event pairs, 10710 based on Foata normal form. 1/68662 useless extension candidates. Maximal degree in co-relation 55978. Up to 22916 conditions per place. [2024-11-28 04:24:52,060 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 42 selfloop transitions, 3 changer transitions 0/530 dead transitions. [2024-11-28 04:24:52,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 530 transitions, 1928 flow [2024-11-28 04:24:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:24:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2024-11-28 04:24:52,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495428096425602 [2024-11-28 04:24:52,063 INFO L175 Difference]: Start difference. First operand has 364 places, 520 transitions, 1812 flow. Second operand 3 states and 1022 transitions. [2024-11-28 04:24:52,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 530 transitions, 1928 flow [2024-11-28 04:24:52,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 530 transitions, 1928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:24:52,273 INFO L231 Difference]: Finished difference. Result has 367 places, 522 transitions, 1837 flow [2024-11-28 04:24:52,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1812, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1837, PETRI_PLACES=367, PETRI_TRANSITIONS=522} [2024-11-28 04:24:52,275 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 7 predicate places. [2024-11-28 04:24:52,276 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 522 transitions, 1837 flow [2024-11-28 04:24:52,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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 04:24:52,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:52,277 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] [2024-11-28 04:24:52,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:24:52,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:24:52,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:52,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2033424109, now seen corresponding path program 1 times [2024-11-28 04:24:52,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:52,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95320971] [2024-11-28 04:24:52,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:52,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:52,980 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 04:24:52,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:52,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95320971] [2024-11-28 04:24:52,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95320971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:52,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:24:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855439976] [2024-11-28 04:24:52,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:52,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:24:52,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:52,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:24:52,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:24:53,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 401 [2024-11-28 04:24:53,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 522 transitions, 1837 flow. Second operand has 6 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 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 04:24:53,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:53,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 401 [2024-11-28 04:24:53,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand