./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.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_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/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_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/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_8b986ddc-952b-450c-8df5-ef82c0d32635/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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:05:26,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:05:27,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:05:27,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:05:27,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:05:27,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:05:27,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:05:27,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:05:27,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:05:27,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:05:27,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:05:27,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:05:27,092 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:05:27,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:05:27,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:05:27,092 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:05:27,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:05:27,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:05:27,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:05:27,094 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:27,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:27,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:27,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:05:27,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:27,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:27,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:27,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:05:27,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:05:27,096 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:05:27,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:05:27,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:05:27,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:05:27,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:05:27,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:05:27,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:05:27,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:05:27,097 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_8b986ddc-952b-450c-8df5-ef82c0d32635/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 -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2024-11-28 04:05:27,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:05:27,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:05:27,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:05:27,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:05:27,476 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:05:27,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-11-28 04:05:30,603 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/data/2671f1281/36593d1d20f4402e9c3bbb2ebb8585c7/FLAG275144744 [2024-11-28 04:05:31,070 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:05:31,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-11-28 04:05:31,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/data/2671f1281/36593d1d20f4402e9c3bbb2ebb8585c7/FLAG275144744 [2024-11-28 04:05:31,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/data/2671f1281/36593d1d20f4402e9c3bbb2ebb8585c7 [2024-11-28 04:05:31,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:05:31,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:05:31,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:31,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:05:31,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:05:31,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:31" (1/1) ... [2024-11-28 04:05:31,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40768bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:31, skipping insertion in model container [2024-11-28 04:05:31,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:31" (1/1) ... [2024-11-28 04:05:31,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:05:31,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:31,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:05:31,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:32,061 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:05:32,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32 WrapperNode [2024-11-28 04:05:32,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:32,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:32,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:05:32,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:05:32,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,169 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 289 [2024-11-28 04:05:32,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:32,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:05:32,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:05:32,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:05:32,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:05:32,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:05:32,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:05:32,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:05:32,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (1/1) ... [2024-11-28 04:05:32,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:32,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:32,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:05:32,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:05:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 04:05:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 04:05:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:05:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:05:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:05:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:05:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:05:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:05:32,314 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 04:05:32,538 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:05:32,541 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:05:33,400 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:05:33,402 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:05:33,448 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:05:33,448 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:05:33,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:33 BoogieIcfgContainer [2024-11-28 04:05:33,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:05:33,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:05:33,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:05:33,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:05:33,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:05:31" (1/3) ... [2024-11-28 04:05:33,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d7ddbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:33, skipping insertion in model container [2024-11-28 04:05:33,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:32" (2/3) ... [2024-11-28 04:05:33,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d7ddbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:33, skipping insertion in model container [2024-11-28 04:05:33,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:33" (3/3) ... [2024-11-28 04:05:33,463 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2024-11-28 04:05:33,481 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:05:33,483 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_16-arrayloop_rc.i that has 2 procedures, 319 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2024-11-28 04:05:33,483 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:05:33,622 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:05:33,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 324 transitions, 652 flow [2024-11-28 04:05:33,946 INFO L124 PetriNetUnfolderBase]: 6/323 cut-off events. [2024-11-28 04:05:33,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:05:33,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 323 events. 6/323 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 422 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-11-28 04:05:33,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 324 transitions, 652 flow [2024-11-28 04:05:33,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 323 transitions, 649 flow [2024-11-28 04:05:33,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:05:34,004 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;@a9d35e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:05:34,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-28 04:05:34,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:05:34,052 INFO L124 PetriNetUnfolderBase]: 3/125 cut-off events. [2024-11-28 04:05:34,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:05:34,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:34,054 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] [2024-11-28 04:05:34,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:34,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1554738074, now seen corresponding path program 1 times [2024-11-28 04:05:34,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:34,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841986791] [2024-11-28 04:05:34,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:35,697 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 04:05:35,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841986791] [2024-11-28 04:05:35,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841986791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:35,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:35,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:35,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174984913] [2024-11-28 04:05:35,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:35,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:35,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:35,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:35,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:36,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-11-28 04:05:36,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 323 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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 04:05:36,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:36,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-11-28 04:05:36,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:38,552 INFO L124 PetriNetUnfolderBase]: 1265/4876 cut-off events. [2024-11-28 04:05:38,552 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:05:38,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7420 conditions, 4876 events. 1265/4876 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36076 event pairs, 912 based on Foata normal form. 139/4608 useless extension candidates. Maximal degree in co-relation 7280. Up to 2359 conditions per place. [2024-11-28 04:05:38,585 INFO L140 encePairwiseOnDemand]: 284/324 looper letters, 84 selfloop transitions, 107 changer transitions 0/428 dead transitions. [2024-11-28 04:05:38,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 428 transitions, 1241 flow [2024-11-28 04:05:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:38,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:05:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2024-11-28 04:05:38,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8374485596707819 [2024-11-28 04:05:38,610 INFO L175 Difference]: Start difference. First operand has 321 places, 323 transitions, 649 flow. Second operand 6 states and 1628 transitions. [2024-11-28 04:05:38,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 428 transitions, 1241 flow [2024-11-28 04:05:38,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 428 transitions, 1240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:05:38,635 INFO L231 Difference]: Finished difference. Result has 329 places, 420 transitions, 1330 flow [2024-11-28 04:05:38,641 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1330, PETRI_PLACES=329, PETRI_TRANSITIONS=420} [2024-11-28 04:05:38,645 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 8 predicate places. [2024-11-28 04:05:38,647 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 420 transitions, 1330 flow [2024-11-28 04:05:38,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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 04:05:38,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:38,649 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:38,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:05:38,650 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:38,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1997734048, now seen corresponding path program 1 times [2024-11-28 04:05:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:38,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490965215] [2024-11-28 04:05:38,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:39,412 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 04:05:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490965215] [2024-11-28 04:05:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490965215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:39,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819681351] [2024-11-28 04:05:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:39,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:39,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:39,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:39,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:40,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-11-28 04:05:40,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 420 transitions, 1330 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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 04:05:40,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:40,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-11-28 04:05:40,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:41,594 INFO L124 PetriNetUnfolderBase]: 1530/5757 cut-off events. [2024-11-28 04:05:41,595 INFO L125 PetriNetUnfolderBase]: For 1227/1227 co-relation queries the response was YES. [2024-11-28 04:05:41,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10557 conditions, 5757 events. 1530/5757 cut-off events. For 1227/1227 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 43909 event pairs, 936 based on Foata normal form. 0/5320 useless extension candidates. Maximal degree in co-relation 10404. Up to 2635 conditions per place. [2024-11-28 04:05:41,637 INFO L140 encePairwiseOnDemand]: 287/324 looper letters, 180 selfloop transitions, 107 changer transitions 0/528 dead transitions. [2024-11-28 04:05:41,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 528 transitions, 2312 flow [2024-11-28 04:05:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:05:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1621 transitions. [2024-11-28 04:05:41,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8338477366255144 [2024-11-28 04:05:41,647 INFO L175 Difference]: Start difference. First operand has 329 places, 420 transitions, 1330 flow. Second operand 6 states and 1621 transitions. [2024-11-28 04:05:41,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 528 transitions, 2312 flow [2024-11-28 04:05:41,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 528 transitions, 2312 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:05:41,679 INFO L231 Difference]: Finished difference. Result has 338 places, 520 transitions, 2210 flow [2024-11-28 04:05:41,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2210, PETRI_PLACES=338, PETRI_TRANSITIONS=520} [2024-11-28 04:05:41,681 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 17 predicate places. [2024-11-28 04:05:41,681 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 520 transitions, 2210 flow [2024-11-28 04:05:41,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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 04:05:41,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:41,683 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:41,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:05:41,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:41,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash 590225147, now seen corresponding path program 1 times [2024-11-28 04:05:41,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:41,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199014174] [2024-11-28 04:05:41,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:41,892 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 04:05:41,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:41,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199014174] [2024-11-28 04:05:41,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199014174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:41,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:41,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632006707] [2024-11-28 04:05:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:41,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:41,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:41,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:41,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:41,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 324 [2024-11-28 04:05:41,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 520 transitions, 2210 flow. Second operand has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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 04:05:41,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:41,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 324 [2024-11-28 04:05:41,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:43,255 INFO L124 PetriNetUnfolderBase]: 1081/4426 cut-off events. [2024-11-28 04:05:43,255 INFO L125 PetriNetUnfolderBase]: For 1106/1112 co-relation queries the response was YES. [2024-11-28 04:05:43,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 4426 events. 1081/4426 cut-off events. For 1106/1112 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 28487 event pairs, 108 based on Foata normal form. 4/4184 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-11-28 04:05:43,290 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 16 selfloop transitions, 4 changer transitions 0/526 dead transitions. [2024-11-28 04:05:43,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 526 transitions, 2262 flow [2024-11-28 04:05:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:05:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-11-28 04:05:43,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.970164609053498 [2024-11-28 04:05:43,294 INFO L175 Difference]: Start difference. First operand has 338 places, 520 transitions, 2210 flow. Second operand 3 states and 943 transitions. [2024-11-28 04:05:43,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 526 transitions, 2262 flow [2024-11-28 04:05:43,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 526 transitions, 2070 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-28 04:05:43,328 INFO L231 Difference]: Finished difference. Result has 341 places, 522 transitions, 2042 flow [2024-11-28 04:05:43,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2042, PETRI_PLACES=341, PETRI_TRANSITIONS=522} [2024-11-28 04:05:43,330 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 20 predicate places. [2024-11-28 04:05:43,331 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 522 transitions, 2042 flow [2024-11-28 04:05:43,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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 04:05:43,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:43,332 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:43,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:05:43,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:43,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:43,334 INFO L85 PathProgramCache]: Analyzing trace with hash -372341436, now seen corresponding path program 1 times [2024-11-28 04:05:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:43,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323602566] [2024-11-28 04:05:43,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:44,092 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 04:05:44,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:44,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323602566] [2024-11-28 04:05:44,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323602566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:44,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:44,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:44,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288420059] [2024-11-28 04:05:44,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:44,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:44,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:44,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:44,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:44,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 324 [2024-11-28 04:05:44,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 522 transitions, 2042 flow. Second operand has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 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 04:05:44,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:44,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 324 [2024-11-28 04:05:44,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:47,338 INFO L124 PetriNetUnfolderBase]: 2970/10667 cut-off events. [2024-11-28 04:05:47,339 INFO L125 PetriNetUnfolderBase]: For 6059/6162 co-relation queries the response was YES. [2024-11-28 04:05:47,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23723 conditions, 10667 events. 2970/10667 cut-off events. For 6059/6162 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84445 event pairs, 1872 based on Foata normal form. 0/10135 useless extension candidates. Maximal degree in co-relation 23467. Up to 5591 conditions per place. [2024-11-28 04:05:47,421 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 285 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-11-28 04:05:47,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 521 transitions, 2620 flow [2024-11-28 04:05:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:05:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1471 transitions. [2024-11-28 04:05:47,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7566872427983539 [2024-11-28 04:05:47,427 INFO L175 Difference]: Start difference. First operand has 341 places, 522 transitions, 2042 flow. Second operand 6 states and 1471 transitions. [2024-11-28 04:05:47,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 521 transitions, 2620 flow [2024-11-28 04:05:47,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 521 transitions, 2616 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:05:47,450 INFO L231 Difference]: Finished difference. Result has 344 places, 521 transitions, 2046 flow [2024-11-28 04:05:47,451 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2046, PETRI_PLACES=344, PETRI_TRANSITIONS=521} [2024-11-28 04:05:47,452 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 23 predicate places. [2024-11-28 04:05:47,452 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 521 transitions, 2046 flow [2024-11-28 04:05:47,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 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 04:05:47,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:47,454 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:47,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:05:47,454 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:47,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 133790432, now seen corresponding path program 1 times [2024-11-28 04:05:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:47,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378629283] [2024-11-28 04:05:47,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:47,746 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 04:05:47,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:47,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378629283] [2024-11-28 04:05:47,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378629283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:47,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542162550] [2024-11-28 04:05:47,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:47,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:47,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:47,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:47,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:05:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:47,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:05:47,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:48,166 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 04:05:48,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:48,293 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 04:05:48,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542162550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:48,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:48,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:05:48,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641704263] [2024-11-28 04:05:48,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:48,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:05:48,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:48,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:05:48,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:05:48,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-28 04:05:48,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 521 transitions, 2046 flow. Second operand has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 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 04:05:48,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:48,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-28 04:05:48,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:50,063 INFO L124 PetriNetUnfolderBase]: 1095/4581 cut-off events. [2024-11-28 04:05:50,063 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-11-28 04:05:50,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8884 conditions, 4581 events. 1095/4581 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 29233 event pairs, 106 based on Foata normal form. 2/4328 useless extension candidates. Maximal degree in co-relation 8588. Up to 922 conditions per place. [2024-11-28 04:05:50,105 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 22 selfloop transitions, 13 changer transitions 0/536 dead transitions. [2024-11-28 04:05:50,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 536 transitions, 2148 flow [2024-11-28 04:05:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:05:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2764 transitions. [2024-11-28 04:05:50,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9478737997256516 [2024-11-28 04:05:50,119 INFO L175 Difference]: Start difference. First operand has 344 places, 521 transitions, 2046 flow. Second operand 9 states and 2764 transitions. [2024-11-28 04:05:50,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 536 transitions, 2148 flow [2024-11-28 04:05:50,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 536 transitions, 2138 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:05:50,148 INFO L231 Difference]: Finished difference. Result has 350 places, 528 transitions, 2104 flow [2024-11-28 04:05:50,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2104, PETRI_PLACES=350, PETRI_TRANSITIONS=528} [2024-11-28 04:05:50,150 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 29 predicate places. [2024-11-28 04:05:50,150 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 528 transitions, 2104 flow [2024-11-28 04:05:50,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 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 04:05:50,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:50,153 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:50,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:05:50,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:50,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:50,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1019909824, now seen corresponding path program 2 times [2024-11-28 04:05:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065978233] [2024-11-28 04:05:50,356 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:05:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:50,455 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:05:50,455 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:05:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 04:05:51,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:51,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065978233] [2024-11-28 04:05:51,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065978233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:51,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:51,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:51,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021994173] [2024-11-28 04:05:51,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:51,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:51,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:51,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:51,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:51,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-11-28 04:05:51,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 528 transitions, 2104 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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 04:05:51,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:51,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-11-28 04:05:51,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:05:55,725 INFO L124 PetriNetUnfolderBase]: 3572/12316 cut-off events. [2024-11-28 04:05:55,725 INFO L125 PetriNetUnfolderBase]: For 5305/5421 co-relation queries the response was YES. [2024-11-28 04:05:55,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26831 conditions, 12316 events. 3572/12316 cut-off events. For 5305/5421 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 97965 event pairs, 1616 based on Foata normal form. 0/11570 useless extension candidates. Maximal degree in co-relation 26497. Up to 6065 conditions per place. [2024-11-28 04:05:55,791 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 245 selfloop transitions, 170 changer transitions 0/697 dead transitions. [2024-11-28 04:05:55,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 697 transitions, 3412 flow [2024-11-28 04:05:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:55,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:05:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-11-28 04:05:55,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-11-28 04:05:55,797 INFO L175 Difference]: Start difference. First operand has 350 places, 528 transitions, 2104 flow. Second operand 6 states and 1684 transitions. [2024-11-28 04:05:55,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 697 transitions, 3412 flow [2024-11-28 04:05:55,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 697 transitions, 3402 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-28 04:05:55,829 INFO L231 Difference]: Finished difference. Result has 359 places, 689 transitions, 3344 flow [2024-11-28 04:05:55,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3344, PETRI_PLACES=359, PETRI_TRANSITIONS=689} [2024-11-28 04:05:55,833 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 38 predicate places. [2024-11-28 04:05:55,833 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 689 transitions, 3344 flow [2024-11-28 04:05:55,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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 04:05:55,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:05:55,835 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:55,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:05:55,836 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:05:55,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash 848160965, now seen corresponding path program 1 times [2024-11-28 04:05:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412756037] [2024-11-28 04:05:55,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:55,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:56,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412756037] [2024-11-28 04:05:56,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412756037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195007607] [2024-11-28 04:05:56,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:56,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:56,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:56,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:05:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:56,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:05:56,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:57,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:57,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195007607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:57,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:57,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 04:05:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292828867] [2024-11-28 04:05:57,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:57,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:05:57,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:57,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:05:57,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:05:58,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-28 04:05:58,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 689 transitions, 3344 flow. Second operand has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 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 04:05:58,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:05:58,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-28 04:05:58,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:00,355 INFO L124 PetriNetUnfolderBase]: 1777/6922 cut-off events. [2024-11-28 04:06:00,356 INFO L125 PetriNetUnfolderBase]: For 3171/3270 co-relation queries the response was YES. [2024-11-28 04:06:00,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16029 conditions, 6922 events. 1777/6922 cut-off events. For 3171/3270 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 47983 event pairs, 163 based on Foata normal form. 4/6622 useless extension candidates. Maximal degree in co-relation 15428. Up to 1393 conditions per place. [2024-11-28 04:06:00,408 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 26 selfloop transitions, 25 changer transitions 0/713 dead transitions. [2024-11-28 04:06:00,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 713 transitions, 3546 flow [2024-11-28 04:06:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:06:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:06:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6418 transitions. [2024-11-28 04:06:00,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9432686654908877 [2024-11-28 04:06:00,428 INFO L175 Difference]: Start difference. First operand has 359 places, 689 transitions, 3344 flow. Second operand 21 states and 6418 transitions. [2024-11-28 04:06:00,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 713 transitions, 3546 flow [2024-11-28 04:06:00,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 713 transitions, 3510 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-28 04:06:00,501 INFO L231 Difference]: Finished difference. Result has 384 places, 702 transitions, 3452 flow [2024-11-28 04:06:00,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3308, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3452, PETRI_PLACES=384, PETRI_TRANSITIONS=702} [2024-11-28 04:06:00,502 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 63 predicate places. [2024-11-28 04:06:00,503 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 702 transitions, 3452 flow [2024-11-28 04:06:00,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 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 04:06:00,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:00,507 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:00,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:00,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:06:00,711 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:00,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:00,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1733198459, now seen corresponding path program 2 times [2024-11-28 04:06:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932057162] [2024-11-28 04:06:00,717 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:06:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:00,857 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:06:00,859 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-28 04:06:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932057162] [2024-11-28 04:06:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932057162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:01,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:01,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:06:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853089331] [2024-11-28 04:06:01,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:01,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:06:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:01,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:06:01,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:02,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-11-28 04:06:02,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 702 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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 04:06:02,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:02,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-11-28 04:06:02,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:07,413 INFO L124 PetriNetUnfolderBase]: 4262/14691 cut-off events. [2024-11-28 04:06:07,413 INFO L125 PetriNetUnfolderBase]: For 10658/10876 co-relation queries the response was YES. [2024-11-28 04:06:07,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37001 conditions, 14691 events. 4262/14691 cut-off events. For 10658/10876 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 118936 event pairs, 1676 based on Foata normal form. 0/13895 useless extension candidates. Maximal degree in co-relation 36307. Up to 6898 conditions per place. [2024-11-28 04:06:07,529 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 395 selfloop transitions, 170 changer transitions 0/871 dead transitions. [2024-11-28 04:06:07,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 871 transitions, 5360 flow [2024-11-28 04:06:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:06:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:06:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-11-28 04:06:07,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-11-28 04:06:07,534 INFO L175 Difference]: Start difference. First operand has 384 places, 702 transitions, 3452 flow. Second operand 6 states and 1684 transitions. [2024-11-28 04:06:07,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 871 transitions, 5360 flow [2024-11-28 04:06:07,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 871 transitions, 5334 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 04:06:07,608 INFO L231 Difference]: Finished difference. Result has 388 places, 863 transitions, 4976 flow [2024-11-28 04:06:07,609 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4976, PETRI_PLACES=388, PETRI_TRANSITIONS=863} [2024-11-28 04:06:07,611 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 67 predicate places. [2024-11-28 04:06:07,612 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 863 transitions, 4976 flow [2024-11-28 04:06:07,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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 04:06:07,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:07,614 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:07,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:06:07,615 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:07,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1402317739, now seen corresponding path program 1 times [2024-11-28 04:06:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93338994] [2024-11-28 04:06:07,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:09,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93338994] [2024-11-28 04:06:09,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93338994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388093715] [2024-11-28 04:06:09,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:09,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:09,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:09,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:06:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:09,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:06:09,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:10,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388093715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:06:11,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:06:11,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 04:06:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654431731] [2024-11-28 04:06:11,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:11,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:06:11,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:11,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:06:11,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:06:11,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-28 04:06:11,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 863 transitions, 4976 flow. Second operand has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 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 04:06:11,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:11,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-28 04:06:11,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:15,873 INFO L124 PetriNetUnfolderBase]: 2478/9371 cut-off events. [2024-11-28 04:06:15,873 INFO L125 PetriNetUnfolderBase]: For 7424/7570 co-relation queries the response was YES. [2024-11-28 04:06:15,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24561 conditions, 9371 events. 2478/9371 cut-off events. For 7424/7570 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 68646 event pairs, 229 based on Foata normal form. 3/9001 useless extension candidates. Maximal degree in co-relation 23697. Up to 2112 conditions per place. [2024-11-28 04:06:15,929 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 29 selfloop transitions, 34 changer transitions 0/886 dead transitions. [2024-11-28 04:06:15,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 886 transitions, 5236 flow [2024-11-28 04:06:15,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:06:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 04:06:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9156 transitions. [2024-11-28 04:06:15,940 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9419753086419753 [2024-11-28 04:06:15,940 INFO L175 Difference]: Start difference. First operand has 388 places, 863 transitions, 4976 flow. Second operand 30 states and 9156 transitions. [2024-11-28 04:06:15,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 886 transitions, 5236 flow [2024-11-28 04:06:16,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 886 transitions, 4900 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-28 04:06:16,032 INFO L231 Difference]: Finished difference. Result has 421 places, 873 transitions, 4806 flow [2024-11-28 04:06:16,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4640, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=863, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4806, PETRI_PLACES=421, PETRI_TRANSITIONS=873} [2024-11-28 04:06:16,033 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 100 predicate places. [2024-11-28 04:06:16,033 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 873 transitions, 4806 flow [2024-11-28 04:06:16,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 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 04:06:16,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:16,036 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-28 04:06:16,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:16,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b986ddc-952b-450c-8df5-ef82c0d32635/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:16,239 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:16,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:16,241 INFO L85 PathProgramCache]: Analyzing trace with hash 328341154, now seen corresponding path program 2 times [2024-11-28 04:06:16,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:16,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369094631] [2024-11-28 04:06:16,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:06:16,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:16,343 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:06:16,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-28 04:06:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369094631] [2024-11-28 04:06:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369094631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:06:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231324776] [2024-11-28 04:06:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:17,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:17,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:17,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:18,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-28 04:06:18,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 873 transitions, 4806 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:18,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:18,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-28 04:06:18,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:26,661 INFO L124 PetriNetUnfolderBase]: 4958/16109 cut-off events. [2024-11-28 04:06:26,661 INFO L125 PetriNetUnfolderBase]: For 16981/17099 co-relation queries the response was YES. [2024-11-28 04:06:26,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46850 conditions, 16109 events. 4958/16109 cut-off events. For 16981/17099 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 128485 event pairs, 1551 based on Foata normal form. 32/15472 useless extension candidates. Maximal degree in co-relation 45814. Up to 4580 conditions per place. [2024-11-28 04:06:26,760 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 589 selfloop transitions, 184 changer transitions 0/1077 dead transitions. [2024-11-28 04:06:26,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 1077 transitions, 7550 flow [2024-11-28 04:06:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:06:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 04:06:26,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3165 transitions. [2024-11-28 04:06:26,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8140432098765432 [2024-11-28 04:06:26,768 INFO L175 Difference]: Start difference. First operand has 421 places, 873 transitions, 4806 flow. Second operand 12 states and 3165 transitions. [2024-11-28 04:06:26,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 1077 transitions, 7550 flow [2024-11-28 04:06:26,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 1077 transitions, 7502 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 04:06:26,859 INFO L231 Difference]: Finished difference. Result has 419 places, 892 transitions, 5516 flow [2024-11-28 04:06:26,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4758, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5516, PETRI_PLACES=419, PETRI_TRANSITIONS=892} [2024-11-28 04:06:26,861 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 98 predicate places. [2024-11-28 04:06:26,861 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 892 transitions, 5516 flow [2024-11-28 04:06:26,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:26,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:26,866 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-28 04:06:26,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:06:26,866 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:26,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:26,869 INFO L85 PathProgramCache]: Analyzing trace with hash -139104578, now seen corresponding path program 3 times [2024-11-28 04:06:26,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:26,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113528595] [2024-11-28 04:06:26,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:06:26,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:26,982 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:06:26,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-28 04:06:27,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113528595] [2024-11-28 04:06:27,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113528595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:27,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:27,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:06:27,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892566381] [2024-11-28 04:06:27,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:27,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:27,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:27,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:27,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:29,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-28 04:06:29,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 892 transitions, 5516 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:29,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:29,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-28 04:06:29,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:37,708 INFO L124 PetriNetUnfolderBase]: 5667/18287 cut-off events. [2024-11-28 04:06:37,708 INFO L125 PetriNetUnfolderBase]: For 25237/25694 co-relation queries the response was YES. [2024-11-28 04:06:37,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57895 conditions, 18287 events. 5667/18287 cut-off events. For 25237/25694 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 149958 event pairs, 1736 based on Foata normal form. 97/17652 useless extension candidates. Maximal degree in co-relation 56876. Up to 5373 conditions per place. [2024-11-28 04:06:37,865 INFO L140 encePairwiseOnDemand]: 269/324 looper letters, 831 selfloop transitions, 162 changer transitions 0/1297 dead transitions. [2024-11-28 04:06:37,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1297 transitions, 10824 flow [2024-11-28 04:06:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:06:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-28 04:06:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5592 transitions. [2024-11-28 04:06:37,877 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.750402576489533 [2024-11-28 04:06:37,878 INFO L175 Difference]: Start difference. First operand has 419 places, 892 transitions, 5516 flow. Second operand 23 states and 5592 transitions. [2024-11-28 04:06:37,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1297 transitions, 10824 flow [2024-11-28 04:06:38,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1297 transitions, 10586 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-28 04:06:38,031 INFO L231 Difference]: Finished difference. Result has 452 places, 1033 transitions, 7342 flow [2024-11-28 04:06:38,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=5376, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=772, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7342, PETRI_PLACES=452, PETRI_TRANSITIONS=1033} [2024-11-28 04:06:38,032 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 131 predicate places. [2024-11-28 04:06:38,033 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 1033 transitions, 7342 flow [2024-11-28 04:06:38,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:38,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:38,034 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-28 04:06:38,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:06:38,035 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:38,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1781891196, now seen corresponding path program 4 times [2024-11-28 04:06:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037700867] [2024-11-28 04:06:38,038 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:06:38,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:38,273 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:06:38,274 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-28 04:06:40,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037700867] [2024-11-28 04:06:40,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037700867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:40,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:40,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:06:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314387549] [2024-11-28 04:06:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:40,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:40,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:40,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:40,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:42,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-28 04:06:42,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 1033 transitions, 7342 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:42,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:42,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-28 04:06:42,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:06:51,641 INFO L124 PetriNetUnfolderBase]: 5852/18389 cut-off events. [2024-11-28 04:06:51,641 INFO L125 PetriNetUnfolderBase]: For 34231/34437 co-relation queries the response was YES. [2024-11-28 04:06:51,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63334 conditions, 18389 events. 5852/18389 cut-off events. For 34231/34437 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 149405 event pairs, 1553 based on Foata normal form. 72/17786 useless extension candidates. Maximal degree in co-relation 62238. Up to 4624 conditions per place. [2024-11-28 04:06:51,794 INFO L140 encePairwiseOnDemand]: 273/324 looper letters, 659 selfloop transitions, 288 changer transitions 0/1251 dead transitions. [2024-11-28 04:06:51,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 1251 transitions, 10853 flow [2024-11-28 04:06:51,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:06:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:06:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3398 transitions. [2024-11-28 04:06:51,798 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8067426400759734 [2024-11-28 04:06:51,798 INFO L175 Difference]: Start difference. First operand has 452 places, 1033 transitions, 7342 flow. Second operand 13 states and 3398 transitions. [2024-11-28 04:06:51,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 1251 transitions, 10853 flow [2024-11-28 04:06:52,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1251 transitions, 10801 flow, removed 26 selfloop flow, removed 0 redundant places. [2024-11-28 04:06:52,095 INFO L231 Difference]: Finished difference. Result has 471 places, 1062 transitions, 8725 flow [2024-11-28 04:06:52,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=7298, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=754, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8725, PETRI_PLACES=471, PETRI_TRANSITIONS=1062} [2024-11-28 04:06:52,097 INFO L279 CegarLoopForPetriNet]: 321 programPoint places, 150 predicate places. [2024-11-28 04:06:52,097 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 1062 transitions, 8725 flow [2024-11-28 04:06:52,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:52,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:06:52,099 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-28 04:06:52,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:06:52,099 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:06:52,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:52,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1900658100, now seen corresponding path program 5 times [2024-11-28 04:06:52,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:52,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76481405] [2024-11-28 04:06:52,102 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:06:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:52,873 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 04:06:52,873 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:06:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-28 04:06:55,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:55,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76481405] [2024-11-28 04:06:55,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76481405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:55,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:55,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:06:55,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526652642] [2024-11-28 04:06:55,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:55,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:55,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:55,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:55,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:56,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-28 04:06:56,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 1062 transitions, 8725 flow. Second operand has 11 states, 11 states have (on average 232.1818181818182) internal successors, (2554), 11 states have internal predecessors, (2554), 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 04:06:56,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:06:56,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-28 04:06:56,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:07:05,590 INFO L124 PetriNetUnfolderBase]: 6591/20670 cut-off events. [2024-11-28 04:07:05,590 INFO L125 PetriNetUnfolderBase]: For 56655/57420 co-relation queries the response was YES. [2024-11-28 04:07:05,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77409 conditions, 20670 events. 6591/20670 cut-off events. For 56655/57420 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 172824 event pairs, 2097 based on Foata normal form. 155/20048 useless extension candidates. Maximal degree in co-relation 76305. Up to 9465 conditions per place. [2024-11-28 04:07:05,771 INFO L140 encePairwiseOnDemand]: 271/324 looper letters, 849 selfloop transitions, 209 changer transitions 0/1362 dead transitions. [2024-11-28 04:07:05,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 1362 transitions, 14121 flow [2024-11-28 04:07:05,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:07:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 04:07:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4847 transitions. [2024-11-28 04:07:05,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7479938271604938 [2024-11-28 04:07:05,776 INFO L175 Difference]: Start difference. First operand has 471 places, 1062 transitions, 8725 flow. Second operand 20 states and 4847 transitions. [2024-11-28 04:07:05,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 1362 transitions, 14121 flow