./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:25:34,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:25:34,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 01:25:34,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:25:34,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:25:34,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:25:34,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:25:34,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:25:34,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:25:34,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:25:34,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:25:34,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:25:34,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:25:34,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:25:34,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:25:34,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:25:34,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:25:34,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:25:34,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:25:34,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:25:34,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:25:34,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:25:34,748 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:25:34,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:34,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:34,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:34,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:25:34,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:34,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:34,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:34,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:25:34,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:25:34,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:25:34,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:25:34,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:25:34,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:25:34,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:25:34,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:25:34,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:25:34,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:25:34,753 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_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC 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 -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2024-11-24 01:25:35,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:25:35,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:25:35,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:25:35,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:25:35,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:25:35,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-24 01:25:38,567 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/ed33e80b3/39ddaf7c7fe74a97b5b7fc841a52be38/FLAGb84f84ffe [2024-11-24 01:25:39,091 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:25:39,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-24 01:25:39,127 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/ed33e80b3/39ddaf7c7fe74a97b5b7fc841a52be38/FLAGb84f84ffe [2024-11-24 01:25:39,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/ed33e80b3/39ddaf7c7fe74a97b5b7fc841a52be38 [2024-11-24 01:25:39,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:25:39,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:25:39,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:39,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:25:39,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:25:39,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:39" (1/1) ... [2024-11-24 01:25:39,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aea42f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:39, skipping insertion in model container [2024-11-24 01:25:39,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:39" (1/1) ... [2024-11-24 01:25:39,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:25:39,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:39,998 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:25:40,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:40,219 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:25:40,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40 WrapperNode [2024-11-24 01:25:40,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:40,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:40,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:25:40,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:25:40,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,343 INFO L138 Inliner]: procedures = 372, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 416 [2024-11-24 01:25:40,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:40,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:25:40,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:25:40,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:25:40,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:25:40,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:25:40,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:25:40,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:25:40,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (1/1) ... [2024-11-24 01:25:40,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:40,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:25:40,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:25:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 01:25:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-24 01:25:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:25:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:25:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:25:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:25:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:25:40,502 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:25:40,684 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:25:40,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:25:41,942 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:25:41,942 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:25:41,997 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:25:41,997 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:25:41,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:41 BoogieIcfgContainer [2024-11-24 01:25:41,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:25:42,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:25:42,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:25:42,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:25:42,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:25:39" (1/3) ... [2024-11-24 01:25:42,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c436f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:42, skipping insertion in model container [2024-11-24 01:25:42,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:40" (2/3) ... [2024-11-24 01:25:42,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2c436f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:42, skipping insertion in model container [2024-11-24 01:25:42,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:41" (3/3) ... [2024-11-24 01:25:42,010 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2024-11-24 01:25:42,030 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:25:42,032 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_13-arraycollapse_nr.i that has 2 procedures, 485 locations, 1 initial locations, 1 loop locations, and 30 error locations. [2024-11-24 01:25:42,032 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:25:42,234 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:25:42,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 489 transitions, 982 flow [2024-11-24 01:25:42,540 INFO L124 PetriNetUnfolderBase]: 5/488 cut-off events. [2024-11-24 01:25:42,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:25:42,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 488 events. 5/488 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 364 event pairs, 0 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 360. Up to 2 conditions per place. [2024-11-24 01:25:42,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 489 transitions, 982 flow [2024-11-24 01:25:42,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 487 places, 488 transitions, 979 flow [2024-11-24 01:25:42,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:25:42,612 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;@369f3574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:25:42,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-24 01:25:42,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:25:42,657 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2024-11-24 01:25:42,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:25:42,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:42,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:42,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:42,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash -105981080, now seen corresponding path program 1 times [2024-11-24 01:25:42,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:42,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250263338] [2024-11-24 01:25:42,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:44,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250263338] [2024-11-24 01:25:44,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250263338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:44,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:44,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:44,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395559468] [2024-11-24 01:25:44,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:44,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:44,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:44,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:44,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:46,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 489 [2024-11-24 01:25:46,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 488 transitions, 979 flow. Second operand has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 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) [2024-11-24 01:25:46,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:46,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 489 [2024-11-24 01:25:46,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:46,877 INFO L124 PetriNetUnfolderBase]: 365/1833 cut-off events. [2024-11-24 01:25:46,878 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:25:46,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2699 conditions, 1833 events. 365/1833 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9428 event pairs, 364 based on Foata normal form. 13/1708 useless extension candidates. Maximal degree in co-relation 2247. Up to 842 conditions per place. [2024-11-24 01:25:46,894 INFO L140 encePairwiseOnDemand]: 461/489 looper letters, 113 selfloop transitions, 20 changer transitions 2/480 dead transitions. [2024-11-24 01:25:46,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 480 transitions, 1229 flow [2024-11-24 01:25:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:46,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:25:46,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2229 transitions. [2024-11-24 01:25:46,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7597137014314929 [2024-11-24 01:25:46,925 INFO L175 Difference]: Start difference. First operand has 487 places, 488 transitions, 979 flow. Second operand 6 states and 2229 transitions. [2024-11-24 01:25:46,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 480 transitions, 1229 flow [2024-11-24 01:25:46,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 480 transitions, 1228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:25:46,947 INFO L231 Difference]: Finished difference. Result has 487 places, 478 transitions, 998 flow [2024-11-24 01:25:46,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=998, PETRI_PLACES=487, PETRI_TRANSITIONS=478} [2024-11-24 01:25:46,955 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 0 predicate places. [2024-11-24 01:25:46,956 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 478 transitions, 998 flow [2024-11-24 01:25:46,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 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) [2024-11-24 01:25:46,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:46,958 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] [2024-11-24 01:25:46,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:25:46,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:46,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:46,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1141897803, now seen corresponding path program 1 times [2024-11-24 01:25:46,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:46,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764855818] [2024-11-24 01:25:46,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:46,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:47,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:47,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764855818] [2024-11-24 01:25:47,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764855818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:47,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:47,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:47,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140684577] [2024-11-24 01:25:47,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:47,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:47,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:47,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:47,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:49,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 489 [2024-11-24 01:25:49,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 478 transitions, 998 flow. Second operand has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 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) [2024-11-24 01:25:49,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:49,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 489 [2024-11-24 01:25:49,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:50,190 INFO L124 PetriNetUnfolderBase]: 365/1827 cut-off events. [2024-11-24 01:25:50,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:25:50,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 1827 events. 365/1827 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9468 event pairs, 364 based on Foata normal form. 0/1695 useless extension candidates. Maximal degree in co-relation 2333. Up to 842 conditions per place. [2024-11-24 01:25:50,203 INFO L140 encePairwiseOnDemand]: 465/489 looper letters, 113 selfloop transitions, 20 changer transitions 0/474 dead transitions. [2024-11-24 01:25:50,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 474 transitions, 1256 flow [2024-11-24 01:25:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:25:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2225 transitions. [2024-11-24 01:25:50,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7583503749147921 [2024-11-24 01:25:50,211 INFO L175 Difference]: Start difference. First operand has 487 places, 478 transitions, 998 flow. Second operand 6 states and 2225 transitions. [2024-11-24 01:25:50,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 474 transitions, 1256 flow [2024-11-24 01:25:50,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 474 transitions, 1216 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:25:50,226 INFO L231 Difference]: Finished difference. Result has 481 places, 474 transitions, 990 flow [2024-11-24 01:25:50,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=990, PETRI_PLACES=481, PETRI_TRANSITIONS=474} [2024-11-24 01:25:50,228 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -6 predicate places. [2024-11-24 01:25:50,229 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 474 transitions, 990 flow [2024-11-24 01:25:50,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.3333333333333) internal successors, (2096), 6 states have internal predecessors, (2096), 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) [2024-11-24 01:25:50,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:50,232 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] [2024-11-24 01:25:50,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:25:50,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:50,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1305326412, now seen corresponding path program 1 times [2024-11-24 01:25:50,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:50,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115022938] [2024-11-24 01:25:50,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:50,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:51,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:51,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115022938] [2024-11-24 01:25:51,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115022938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:51,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:51,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:51,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228478015] [2024-11-24 01:25:51,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:51,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:51,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:51,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:52,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 489 [2024-11-24 01:25:52,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 474 transitions, 990 flow. Second operand has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 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) [2024-11-24 01:25:52,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:52,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 489 [2024-11-24 01:25:52,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:52,871 INFO L124 PetriNetUnfolderBase]: 391/1916 cut-off events. [2024-11-24 01:25:52,871 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:25:52,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 1916 events. 391/1916 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10185 event pairs, 390 based on Foata normal form. 0/1778 useless extension candidates. Maximal degree in co-relation 2460. Up to 911 conditions per place. [2024-11-24 01:25:52,886 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 130 selfloop transitions, 5 changer transitions 0/473 dead transitions. [2024-11-24 01:25:52,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 473 transitions, 1258 flow [2024-11-24 01:25:52,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:25:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2230 transitions. [2024-11-24 01:25:52,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7600545330606681 [2024-11-24 01:25:52,895 INFO L175 Difference]: Start difference. First operand has 481 places, 474 transitions, 990 flow. Second operand 6 states and 2230 transitions. [2024-11-24 01:25:52,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 473 transitions, 1258 flow [2024-11-24 01:25:52,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 473 transitions, 1218 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:25:52,909 INFO L231 Difference]: Finished difference. Result has 480 places, 473 transitions, 958 flow [2024-11-24 01:25:52,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=958, PETRI_PLACES=480, PETRI_TRANSITIONS=473} [2024-11-24 01:25:52,913 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -7 predicate places. [2024-11-24 01:25:52,913 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 473 transitions, 958 flow [2024-11-24 01:25:52,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 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) [2024-11-24 01:25:52,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:52,915 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] [2024-11-24 01:25:52,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:25:52,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:52,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1451635957, now seen corresponding path program 1 times [2024-11-24 01:25:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:52,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540796180] [2024-11-24 01:25:52,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:53,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540796180] [2024-11-24 01:25:53,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540796180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:53,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:53,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:53,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124504593] [2024-11-24 01:25:53,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:53,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:53,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:53,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:53,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:53,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 489 [2024-11-24 01:25:53,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 473 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-24 01:25:53,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:53,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 489 [2024-11-24 01:25:53,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:53,326 INFO L124 PetriNetUnfolderBase]: 7/658 cut-off events. [2024-11-24 01:25:53,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:25:53,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 658 events. 7/658 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 634 event pairs, 6 based on Foata normal form. 1/623 useless extension candidates. Maximal degree in co-relation 496. Up to 24 conditions per place. [2024-11-24 01:25:53,329 INFO L140 encePairwiseOnDemand]: 486/489 looper letters, 10 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2024-11-24 01:25:53,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 474 transitions, 984 flow [2024-11-24 01:25:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:25:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1435 transitions. [2024-11-24 01:25:53,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.978186775732788 [2024-11-24 01:25:53,334 INFO L175 Difference]: Start difference. First operand has 480 places, 473 transitions, 958 flow. Second operand 3 states and 1435 transitions. [2024-11-24 01:25:53,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 474 transitions, 984 flow [2024-11-24 01:25:53,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 474 transitions, 974 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:25:53,346 INFO L231 Difference]: Finished difference. Result has 478 places, 474 transitions, 960 flow [2024-11-24 01:25:53,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=478, PETRI_TRANSITIONS=474} [2024-11-24 01:25:53,348 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -9 predicate places. [2024-11-24 01:25:53,348 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 474 transitions, 960 flow [2024-11-24 01:25:53,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-24 01:25:53,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:53,350 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, 1, 1] [2024-11-24 01:25:53,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:25:53,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:53,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -817653909, now seen corresponding path program 1 times [2024-11-24 01:25:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:53,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997778739] [2024-11-24 01:25:53,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997778739] [2024-11-24 01:25:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997778739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:54,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:54,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:54,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764525666] [2024-11-24 01:25:54,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:54,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:54,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:54,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:54,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:55,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 489 [2024-11-24 01:25:55,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 474 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 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) [2024-11-24 01:25:55,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:55,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 489 [2024-11-24 01:25:55,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:56,228 INFO L124 PetriNetUnfolderBase]: 55/899 cut-off events. [2024-11-24 01:25:56,229 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-24 01:25:56,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 899 events. 55/899 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2252 event pairs, 54 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 924. Up to 227 conditions per place. [2024-11-24 01:25:56,233 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 89 selfloop transitions, 5 changer transitions 0/473 dead transitions. [2024-11-24 01:25:56,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 473 transitions, 1146 flow [2024-11-24 01:25:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:25:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2440 transitions. [2024-11-24 01:25:56,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8316291751874574 [2024-11-24 01:25:56,241 INFO L175 Difference]: Start difference. First operand has 478 places, 474 transitions, 960 flow. Second operand 6 states and 2440 transitions. [2024-11-24 01:25:56,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 473 transitions, 1146 flow [2024-11-24 01:25:56,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 473 transitions, 1144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:25:56,251 INFO L231 Difference]: Finished difference. Result has 481 places, 473 transitions, 966 flow [2024-11-24 01:25:56,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=966, PETRI_PLACES=481, PETRI_TRANSITIONS=473} [2024-11-24 01:25:56,253 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -6 predicate places. [2024-11-24 01:25:56,253 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 473 transitions, 966 flow [2024-11-24 01:25:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 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) [2024-11-24 01:25:56,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:56,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:56,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:25:56,256 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:56,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1809805525, now seen corresponding path program 1 times [2024-11-24 01:25:56,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:56,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133334785] [2024-11-24 01:25:56,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:56,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:57,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133334785] [2024-11-24 01:25:57,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133334785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:57,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:57,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:57,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189035750] [2024-11-24 01:25:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:57,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:57,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:57,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:57,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:58,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 489 [2024-11-24 01:25:58,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 473 transitions, 966 flow. Second operand has 6 states, 6 states have (on average 378.5) internal successors, (2271), 6 states have internal predecessors, (2271), 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) [2024-11-24 01:25:58,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:25:58,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 489 [2024-11-24 01:25:58,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:25:58,889 INFO L124 PetriNetUnfolderBase]: 37/812 cut-off events. [2024-11-24 01:25:58,889 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 01:25:58,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 812 events. 37/812 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1731 event pairs, 36 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 792. Up to 198 conditions per place. [2024-11-24 01:25:58,893 INFO L140 encePairwiseOnDemand]: 471/489 looper letters, 93 selfloop transitions, 15 changer transitions 0/470 dead transitions. [2024-11-24 01:25:58,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 470 transitions, 1176 flow [2024-11-24 01:25:58,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:25:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2355 transitions. [2024-11-24 01:25:58,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8026584867075665 [2024-11-24 01:25:58,901 INFO L175 Difference]: Start difference. First operand has 481 places, 473 transitions, 966 flow. Second operand 6 states and 2355 transitions. [2024-11-24 01:25:58,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 470 transitions, 1176 flow [2024-11-24 01:25:58,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 470 transitions, 1166 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:25:58,913 INFO L231 Difference]: Finished difference. Result has 478 places, 470 transitions, 980 flow [2024-11-24 01:25:58,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=980, PETRI_PLACES=478, PETRI_TRANSITIONS=470} [2024-11-24 01:25:58,918 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -9 predicate places. [2024-11-24 01:25:58,918 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 470 transitions, 980 flow [2024-11-24 01:25:58,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 378.5) internal successors, (2271), 6 states have internal predecessors, (2271), 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) [2024-11-24 01:25:58,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:25:58,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:58,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:25:58,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:25:58,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash -411910208, now seen corresponding path program 1 times [2024-11-24 01:25:58,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:58,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675264505] [2024-11-24 01:25:58,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:58,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:25:59,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:59,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675264505] [2024-11-24 01:25:59,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675264505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:59,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:59,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:59,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434942274] [2024-11-24 01:25:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:59,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:59,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:59,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:59,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:00,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 489 [2024-11-24 01:26:00,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 470 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 342.1666666666667) internal successors, (2053), 6 states have internal predecessors, (2053), 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) [2024-11-24 01:26:00,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:00,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 489 [2024-11-24 01:26:00,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:01,763 INFO L124 PetriNetUnfolderBase]: 365/1925 cut-off events. [2024-11-24 01:26:01,764 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:26:01,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 1925 events. 365/1925 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9380 event pairs, 364 based on Foata normal form. 0/1801 useless extension candidates. Maximal degree in co-relation 2485. Up to 898 conditions per place. [2024-11-24 01:26:01,772 INFO L140 encePairwiseOnDemand]: 471/489 looper letters, 131 selfloop transitions, 15 changer transitions 0/467 dead transitions. [2024-11-24 01:26:01,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 467 transitions, 1266 flow [2024-11-24 01:26:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2165 transitions. [2024-11-24 01:26:01,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7379004771642809 [2024-11-24 01:26:01,779 INFO L175 Difference]: Start difference. First operand has 478 places, 470 transitions, 980 flow. Second operand 6 states and 2165 transitions. [2024-11-24 01:26:01,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 467 transitions, 1266 flow [2024-11-24 01:26:01,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 467 transitions, 1236 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:26:01,789 INFO L231 Difference]: Finished difference. Result has 475 places, 467 transitions, 974 flow [2024-11-24 01:26:01,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=974, PETRI_PLACES=475, PETRI_TRANSITIONS=467} [2024-11-24 01:26:01,792 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -12 predicate places. [2024-11-24 01:26:01,792 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 467 transitions, 974 flow [2024-11-24 01:26:01,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.1666666666667) internal successors, (2053), 6 states have internal predecessors, (2053), 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) [2024-11-24 01:26:01,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:01,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:01,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:26:01,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:01,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1845014359, now seen corresponding path program 1 times [2024-11-24 01:26:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:01,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43849066] [2024-11-24 01:26:01,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:02,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:02,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43849066] [2024-11-24 01:26:02,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43849066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:02,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:02,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904210139] [2024-11-24 01:26:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:02,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:02,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:02,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:03,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 489 [2024-11-24 01:26:03,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 467 transitions, 974 flow. Second operand has 6 states, 6 states have (on average 345.6666666666667) internal successors, (2074), 6 states have internal predecessors, (2074), 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) [2024-11-24 01:26:03,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:03,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 489 [2024-11-24 01:26:03,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:04,667 INFO L124 PetriNetUnfolderBase]: 365/1921 cut-off events. [2024-11-24 01:26:04,667 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:26:04,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 1921 events. 365/1921 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9390 event pairs, 364 based on Foata normal form. 0/1801 useless extension candidates. Maximal degree in co-relation 2481. Up to 894 conditions per place. [2024-11-24 01:26:04,678 INFO L140 encePairwiseOnDemand]: 471/489 looper letters, 128 selfloop transitions, 15 changer transitions 0/464 dead transitions. [2024-11-24 01:26:04,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 464 transitions, 1254 flow [2024-11-24 01:26:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2180 transitions. [2024-11-24 01:26:04,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7430129516019086 [2024-11-24 01:26:04,686 INFO L175 Difference]: Start difference. First operand has 475 places, 467 transitions, 974 flow. Second operand 6 states and 2180 transitions. [2024-11-24 01:26:04,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 464 transitions, 1254 flow [2024-11-24 01:26:04,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 464 transitions, 1224 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:26:04,697 INFO L231 Difference]: Finished difference. Result has 472 places, 464 transitions, 968 flow [2024-11-24 01:26:04,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=968, PETRI_PLACES=472, PETRI_TRANSITIONS=464} [2024-11-24 01:26:04,702 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -15 predicate places. [2024-11-24 01:26:04,704 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 464 transitions, 968 flow [2024-11-24 01:26:04,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 345.6666666666667) internal successors, (2074), 6 states have internal predecessors, (2074), 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) [2024-11-24 01:26:04,706 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:04,706 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:04,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:26:04,706 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:04,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash 797973521, now seen corresponding path program 1 times [2024-11-24 01:26:04,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:04,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116114821] [2024-11-24 01:26:04,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:05,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116114821] [2024-11-24 01:26:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116114821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641027681] [2024-11-24 01:26:05,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:05,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:05,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:05,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:05,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:26:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:05,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:26:05,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:05,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:06,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641027681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:06,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:06,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-24 01:26:06,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606356273] [2024-11-24 01:26:06,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:06,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:26:06,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:06,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:26:06,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:26:06,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 489 [2024-11-24 01:26:06,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 464 transitions, 968 flow. Second operand has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 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) [2024-11-24 01:26:06,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:06,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 489 [2024-11-24 01:26:06,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:06,582 INFO L124 PetriNetUnfolderBase]: 7/752 cut-off events. [2024-11-24 01:26:06,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:26:06,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 752 events. 7/752 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 386 event pairs, 6 based on Foata normal form. 2/732 useless extension candidates. Maximal degree in co-relation 394. Up to 24 conditions per place. [2024-11-24 01:26:06,585 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 14 selfloop transitions, 9 changer transitions 0/472 dead transitions. [2024-11-24 01:26:06,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 472 transitions, 1032 flow [2024-11-24 01:26:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:26:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:26:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4264 transitions. [2024-11-24 01:26:06,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9688707112019995 [2024-11-24 01:26:06,595 INFO L175 Difference]: Start difference. First operand has 472 places, 464 transitions, 968 flow. Second operand 9 states and 4264 transitions. [2024-11-24 01:26:06,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 472 transitions, 1032 flow [2024-11-24 01:26:06,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 472 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:26:06,606 INFO L231 Difference]: Finished difference. Result has 478 places, 470 transitions, 988 flow [2024-11-24 01:26:06,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=988, PETRI_PLACES=478, PETRI_TRANSITIONS=470} [2024-11-24 01:26:06,609 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -9 predicate places. [2024-11-24 01:26:06,609 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 470 transitions, 988 flow [2024-11-24 01:26:06,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 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) [2024-11-24 01:26:06,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:06,615 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:06,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:26:06,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:06,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:06,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1229529417, now seen corresponding path program 2 times [2024-11-24 01:26:06,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559287102] [2024-11-24 01:26:06,823 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:06,966 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:06,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-24 01:26:07,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:07,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559287102] [2024-11-24 01:26:07,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559287102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:07,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:07,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036251331] [2024-11-24 01:26:07,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:07,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:07,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:07,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:09,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 489 [2024-11-24 01:26:09,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 470 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 395.3333333333333) internal successors, (2372), 6 states have internal predecessors, (2372), 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) [2024-11-24 01:26:09,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:09,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 489 [2024-11-24 01:26:09,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:10,261 INFO L124 PetriNetUnfolderBase]: 257/2078 cut-off events. [2024-11-24 01:26:10,261 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-24 01:26:10,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2078 events. 257/2078 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10168 event pairs, 36 based on Foata normal form. 0/1951 useless extension candidates. Maximal degree in co-relation 2279. Up to 523 conditions per place. [2024-11-24 01:26:10,269 INFO L140 encePairwiseOnDemand]: 460/489 looper letters, 99 selfloop transitions, 75 changer transitions 0/547 dead transitions. [2024-11-24 01:26:10,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 547 transitions, 1490 flow [2024-11-24 01:26:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2504 transitions. [2024-11-24 01:26:10,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8534423994546694 [2024-11-24 01:26:10,277 INFO L175 Difference]: Start difference. First operand has 478 places, 470 transitions, 988 flow. Second operand 6 states and 2504 transitions. [2024-11-24 01:26:10,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 547 transitions, 1490 flow [2024-11-24 01:26:10,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 547 transitions, 1484 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-24 01:26:10,288 INFO L231 Difference]: Finished difference. Result has 486 places, 538 transitions, 1462 flow [2024-11-24 01:26:10,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1462, PETRI_PLACES=486, PETRI_TRANSITIONS=538} [2024-11-24 01:26:10,290 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, -1 predicate places. [2024-11-24 01:26:10,290 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 538 transitions, 1462 flow [2024-11-24 01:26:10,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.3333333333333) internal successors, (2372), 6 states have internal predecessors, (2372), 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) [2024-11-24 01:26:10,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:10,292 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:10,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:26:10,293 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:10,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1343234468, now seen corresponding path program 1 times [2024-11-24 01:26:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458960626] [2024-11-24 01:26:10,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:26:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458960626] [2024-11-24 01:26:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458960626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209588830] [2024-11-24 01:26:11,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:11,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:11,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:11,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:26:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:12,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:26:12,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:26:12,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:26:13,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209588830] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:13,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:13,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-24 01:26:13,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348667347] [2024-11-24 01:26:13,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:13,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:26:13,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:13,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:26:13,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:26:13,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 489 [2024-11-24 01:26:14,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 538 transitions, 1462 flow. Second operand has 18 states, 18 states have (on average 472.8888888888889) internal successors, (8512), 18 states have internal predecessors, (8512), 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) [2024-11-24 01:26:14,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:14,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 489 [2024-11-24 01:26:14,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:15,052 INFO L124 PetriNetUnfolderBase]: 120/2148 cut-off events. [2024-11-24 01:26:15,052 INFO L125 PetriNetUnfolderBase]: For 184/204 co-relation queries the response was YES. [2024-11-24 01:26:15,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2148 events. 120/2148 cut-off events. For 184/204 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7266 event pairs, 21 based on Foata normal form. 4/2064 useless extension candidates. Maximal degree in co-relation 1926. Up to 207 conditions per place. [2024-11-24 01:26:15,064 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 19 selfloop transitions, 21 changer transitions 0/556 dead transitions. [2024-11-24 01:26:15,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 556 transitions, 1630 flow [2024-11-24 01:26:15,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:26:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 01:26:15,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9934 transitions. [2024-11-24 01:26:15,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9673775440646606 [2024-11-24 01:26:15,076 INFO L175 Difference]: Start difference. First operand has 486 places, 538 transitions, 1462 flow. Second operand 21 states and 9934 transitions. [2024-11-24 01:26:15,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 556 transitions, 1630 flow [2024-11-24 01:26:15,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 556 transitions, 1630 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:26:15,091 INFO L231 Difference]: Finished difference. Result has 511 places, 551 transitions, 1592 flow [2024-11-24 01:26:15,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1592, PETRI_PLACES=511, PETRI_TRANSITIONS=551} [2024-11-24 01:26:15,093 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 24 predicate places. [2024-11-24 01:26:15,093 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 551 transitions, 1592 flow [2024-11-24 01:26:15,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 472.8888888888889) internal successors, (8512), 18 states have internal predecessors, (8512), 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) [2024-11-24 01:26:15,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:15,097 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:15,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:26:15,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:26:15,302 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:15,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash -960206644, now seen corresponding path program 2 times [2024-11-24 01:26:15,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:15,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825284771] [2024-11-24 01:26:15,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:15,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:15,543 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:15,544 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2282 trivial. 0 not checked. [2024-11-24 01:26:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825284771] [2024-11-24 01:26:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825284771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831362825] [2024-11-24 01:26:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:16,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:16,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:16,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:16,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:17,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 489 [2024-11-24 01:26:17,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 551 transitions, 1592 flow. Second operand has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 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) [2024-11-24 01:26:17,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:17,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 489 [2024-11-24 01:26:17,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:18,830 INFO L124 PetriNetUnfolderBase]: 182/2312 cut-off events. [2024-11-24 01:26:18,830 INFO L125 PetriNetUnfolderBase]: For 454/488 co-relation queries the response was YES. [2024-11-24 01:26:18,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3582 conditions, 2312 events. 182/2312 cut-off events. For 454/488 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9104 event pairs, 54 based on Foata normal form. 0/2210 useless extension candidates. Maximal degree in co-relation 2480. Up to 572 conditions per place. [2024-11-24 01:26:18,842 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 150 selfloop transitions, 5 changer transitions 0/550 dead transitions. [2024-11-24 01:26:18,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 550 transitions, 1900 flow [2024-11-24 01:26:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2455 transitions. [2024-11-24 01:26:18,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8367416496250852 [2024-11-24 01:26:18,848 INFO L175 Difference]: Start difference. First operand has 511 places, 551 transitions, 1592 flow. Second operand 6 states and 2455 transitions. [2024-11-24 01:26:18,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 550 transitions, 1900 flow [2024-11-24 01:26:18,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 550 transitions, 1876 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-24 01:26:18,863 INFO L231 Difference]: Finished difference. Result has 509 places, 550 transitions, 1576 flow [2024-11-24 01:26:18,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1576, PETRI_PLACES=509, PETRI_TRANSITIONS=550} [2024-11-24 01:26:18,865 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 22 predicate places. [2024-11-24 01:26:18,868 INFO L471 AbstractCegarLoop]: Abstraction has has 509 places, 550 transitions, 1576 flow [2024-11-24 01:26:18,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 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) [2024-11-24 01:26:18,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:18,870 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:18,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:26:18,871 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:18,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:18,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1838616979, now seen corresponding path program 1 times [2024-11-24 01:26:18,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:18,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838765471] [2024-11-24 01:26:18,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:18,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 0 proven. 2275 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 01:26:21,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:21,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838765471] [2024-11-24 01:26:21,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838765471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:21,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946923592] [2024-11-24 01:26:21,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:21,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:21,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:21,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:21,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:26:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:23,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 3788 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:26:23,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 0 proven. 2275 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 01:26:24,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 0 proven. 2275 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 01:26:25,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946923592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:25,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:25,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-24 01:26:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348060530] [2024-11-24 01:26:25,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:26:25,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:25,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:26:25,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:26:26,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 489 [2024-11-24 01:26:26,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 550 transitions, 1576 flow. Second operand has 23 states, 23 states have (on average 473.0869565217391) internal successors, (10881), 23 states have internal predecessors, (10881), 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) [2024-11-24 01:26:26,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:26,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 489 [2024-11-24 01:26:26,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:27,384 INFO L124 PetriNetUnfolderBase]: 120/2465 cut-off events. [2024-11-24 01:26:27,384 INFO L125 PetriNetUnfolderBase]: For 301/321 co-relation queries the response was YES. [2024-11-24 01:26:27,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 2465 events. 120/2465 cut-off events. For 301/321 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7269 event pairs, 21 based on Foata normal form. 3/2381 useless extension candidates. Maximal degree in co-relation 1937. Up to 207 conditions per place. [2024-11-24 01:26:27,396 INFO L140 encePairwiseOnDemand]: 483/489 looper letters, 22 selfloop transitions, 30 changer transitions 0/567 dead transitions. [2024-11-24 01:26:27,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 567 transitions, 1802 flow [2024-11-24 01:26:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 01:26:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-24 01:26:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 14184 transitions. [2024-11-24 01:26:27,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9668711656441717 [2024-11-24 01:26:27,420 INFO L175 Difference]: Start difference. First operand has 509 places, 550 transitions, 1576 flow. Second operand 30 states and 14184 transitions. [2024-11-24 01:26:27,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 567 transitions, 1802 flow [2024-11-24 01:26:27,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 567 transitions, 1792 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:26:27,435 INFO L231 Difference]: Finished difference. Result has 537 places, 560 transitions, 1718 flow [2024-11-24 01:26:27,436 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=1566, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1718, PETRI_PLACES=537, PETRI_TRANSITIONS=560} [2024-11-24 01:26:27,437 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 50 predicate places. [2024-11-24 01:26:27,437 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 560 transitions, 1718 flow [2024-11-24 01:26:27,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 473.0869565217391) internal successors, (10881), 23 states have internal predecessors, (10881), 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) [2024-11-24 01:26:27,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:27,441 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:27,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:26:27,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 01:26:27,642 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:27,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -964620903, now seen corresponding path program 2 times [2024-11-24 01:26:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135440679] [2024-11-24 01:26:27,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:27,922 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:27,922 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4880 trivial. 0 not checked. [2024-11-24 01:26:28,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:28,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135440679] [2024-11-24 01:26:28,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135440679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:28,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:28,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:28,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827433688] [2024-11-24 01:26:28,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:28,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:28,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:28,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:29,808 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 489 [2024-11-24 01:26:29,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 560 transitions, 1718 flow. Second operand has 6 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 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) [2024-11-24 01:26:29,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:29,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 489 [2024-11-24 01:26:29,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:31,942 INFO L124 PetriNetUnfolderBase]: 500/3534 cut-off events. [2024-11-24 01:26:31,943 INFO L125 PetriNetUnfolderBase]: For 951/1034 co-relation queries the response was YES. [2024-11-24 01:26:31,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 3534 events. 500/3534 cut-off events. For 951/1034 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16121 event pairs, 92 based on Foata normal form. 16/3393 useless extension candidates. Maximal degree in co-relation 4427. Up to 1097 conditions per place. [2024-11-24 01:26:31,963 INFO L140 encePairwiseOnDemand]: 466/489 looper letters, 163 selfloop transitions, 130 changer transitions 0/697 dead transitions. [2024-11-24 01:26:31,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 697 transitions, 2954 flow [2024-11-24 01:26:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2533 transitions. [2024-11-24 01:26:31,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8633265167007498 [2024-11-24 01:26:31,967 INFO L175 Difference]: Start difference. First operand has 537 places, 560 transitions, 1718 flow. Second operand 6 states and 2533 transitions. [2024-11-24 01:26:31,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 697 transitions, 2954 flow [2024-11-24 01:26:31,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 697 transitions, 2908 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-24 01:26:31,987 INFO L231 Difference]: Finished difference. Result has 529 places, 689 transitions, 2900 flow [2024-11-24 01:26:31,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2900, PETRI_PLACES=529, PETRI_TRANSITIONS=689} [2024-11-24 01:26:31,989 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 42 predicate places. [2024-11-24 01:26:31,989 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 689 transitions, 2900 flow [2024-11-24 01:26:31,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 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) [2024-11-24 01:26:31,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:31,991 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:31,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:26:31,991 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:31,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash -632545709, now seen corresponding path program 1 times [2024-11-24 01:26:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:31,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119829163] [2024-11-24 01:26:31,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-24 01:26:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119829163] [2024-11-24 01:26:37,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119829163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:37,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:37,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:37,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864185005] [2024-11-24 01:26:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:37,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:37,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:37,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:37,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:38,274 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 489 [2024-11-24 01:26:38,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 689 transitions, 2900 flow. Second operand has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 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) [2024-11-24 01:26:38,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:38,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 489 [2024-11-24 01:26:38,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:40,926 INFO L124 PetriNetUnfolderBase]: 776/4305 cut-off events. [2024-11-24 01:26:40,926 INFO L125 PetriNetUnfolderBase]: For 3369/3576 co-relation queries the response was YES. [2024-11-24 01:26:40,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8856 conditions, 4305 events. 776/4305 cut-off events. For 3369/3576 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22224 event pairs, 65 based on Foata normal form. 52/4192 useless extension candidates. Maximal degree in co-relation 7308. Up to 1357 conditions per place. [2024-11-24 01:26:40,945 INFO L140 encePairwiseOnDemand]: 466/489 looper letters, 285 selfloop transitions, 131 changer transitions 5/827 dead transitions. [2024-11-24 01:26:40,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 827 transitions, 4642 flow [2024-11-24 01:26:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2524 transitions. [2024-11-24 01:26:40,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8602590320381731 [2024-11-24 01:26:40,949 INFO L175 Difference]: Start difference. First operand has 529 places, 689 transitions, 2900 flow. Second operand 6 states and 2524 transitions. [2024-11-24 01:26:40,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 827 transitions, 4642 flow [2024-11-24 01:26:40,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 827 transitions, 4642 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:26:40,970 INFO L231 Difference]: Finished difference. Result has 539 places, 817 transitions, 4380 flow [2024-11-24 01:26:40,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=2900, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4380, PETRI_PLACES=539, PETRI_TRANSITIONS=817} [2024-11-24 01:26:40,972 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 52 predicate places. [2024-11-24 01:26:40,972 INFO L471 AbstractCegarLoop]: Abstraction has has 539 places, 817 transitions, 4380 flow [2024-11-24 01:26:40,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.0) internal successors, (2424), 6 states have internal predecessors, (2424), 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) [2024-11-24 01:26:40,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:40,974 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:40,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:26:40,974 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:40,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:40,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1326421425, now seen corresponding path program 1 times [2024-11-24 01:26:40,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:40,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466456022] [2024-11-24 01:26:40,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-24 01:26:45,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466456022] [2024-11-24 01:26:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466456022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:45,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:45,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92097034] [2024-11-24 01:26:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:45,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:45,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:45,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:46,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 489 [2024-11-24 01:26:46,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 817 transitions, 4380 flow. Second operand has 6 states, 6 states have (on average 372.6666666666667) internal successors, (2236), 6 states have internal predecessors, (2236), 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) [2024-11-24 01:26:46,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:26:46,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 489 [2024-11-24 01:26:46,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:26:50,352 INFO L124 PetriNetUnfolderBase]: 1308/5703 cut-off events. [2024-11-24 01:26:50,352 INFO L125 PetriNetUnfolderBase]: For 4874/4931 co-relation queries the response was YES. [2024-11-24 01:26:50,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13640 conditions, 5703 events. 1308/5703 cut-off events. For 4874/4931 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33893 event pairs, 369 based on Foata normal form. 11/5469 useless extension candidates. Maximal degree in co-relation 12008. Up to 2597 conditions per place. [2024-11-24 01:26:50,384 INFO L140 encePairwiseOnDemand]: 470/489 looper letters, 364 selfloop transitions, 84 changer transitions 0/896 dead transitions. [2024-11-24 01:26:50,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 896 transitions, 5674 flow [2024-11-24 01:26:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:26:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2332 transitions. [2024-11-24 01:26:50,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7948193592365371 [2024-11-24 01:26:50,387 INFO L175 Difference]: Start difference. First operand has 539 places, 817 transitions, 4380 flow. Second operand 6 states and 2332 transitions. [2024-11-24 01:26:50,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 896 transitions, 5674 flow [2024-11-24 01:26:50,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 896 transitions, 5420 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-24 01:26:50,419 INFO L231 Difference]: Finished difference. Result has 548 places, 888 transitions, 4916 flow [2024-11-24 01:26:50,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=489, PETRI_DIFFERENCE_MINUEND_FLOW=4132, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=769, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4916, PETRI_PLACES=548, PETRI_TRANSITIONS=888} [2024-11-24 01:26:50,420 INFO L279 CegarLoopForPetriNet]: 487 programPoint places, 61 predicate places. [2024-11-24 01:26:50,421 INFO L471 AbstractCegarLoop]: Abstraction has has 548 places, 888 transitions, 4916 flow [2024-11-24 01:26:50,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.6666666666667) internal successors, (2236), 6 states have internal predecessors, (2236), 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) [2024-11-24 01:26:50,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:26:50,422 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:50,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:26:50,422 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:26:50,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash -500577125, now seen corresponding path program 1 times [2024-11-24 01:26:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:50,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041869209] [2024-11-24 01:26:50,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:50,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:27:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 38 proven. 2698 refuted. 0 times theorem prover too weak. 2164 trivial. 0 not checked. [2024-11-24 01:27:37,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:27:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041869209] [2024-11-24 01:27:37,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041869209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:27:37,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548187692] [2024-11-24 01:27:37,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:27:37,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:27:37,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:27:37,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:27:37,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:27:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:27:40,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 5102 conjuncts, 142 conjuncts are in the unsatisfiable core [2024-11-24 01:27:40,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:40,680 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-24 01:27:40,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-24 01:27:40,982 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-24 01:27:40,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-24 01:27:41,841 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-24 01:27:41,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-24 01:27:42,661 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-24 01:27:42,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-24 01:27:43,835 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-24 01:27:43,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-24 01:27:44,429 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-24 01:27:44,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-24 01:27:45,595 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-24 01:27:45,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-24 01:27:46,575 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-11-24 01:27:46,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-11-24 01:27:49,427 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-24 01:27:49,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-24 01:27:50,747 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-11-24 01:27:50,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2024-11-24 01:27:54,601 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2024-11-24 01:27:54,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2024-11-24 01:27:57,811 INFO L349 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2024-11-24 01:27:57,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2024-11-24 01:28:11,301 INFO L349 Elim1Store]: treesize reduction 126, result has 33.7 percent of original size [2024-11-24 01:28:11,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 47 treesize of output 93 [2024-11-24 01:28:58,539 INFO L349 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2024-11-24 01:28:58,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 52 treesize of output 105 [2024-11-24 01:30:09,168 INFO L349 Elim1Store]: treesize reduction 180, result has 31.3 percent of original size [2024-11-24 01:30:09,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 59 treesize of output 112 [2024-11-24 01:31:05,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-24 01:31:05,227 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-24 01:31:05,228 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-24 01:31:05,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:31:05,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:31:05,429 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-11-24 01:31:05,435 INFO L158 Benchmark]: Toolchain (without parser) took 326276.03ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 103.4MB in the beginning and 990.8MB in the end (delta: -887.4MB). Peak memory consumption was 624.5MB. Max. memory is 16.1GB. [2024-11-24 01:31:05,435 INFO L158 Benchmark]: CDTParser took 2.04ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:31:05,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1060.65ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 62.2MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 01:31:05,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.12ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 56.9MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:31:05,436 INFO L158 Benchmark]: Boogie Preprocessor took 86.73ms. Allocated memory is still 142.6MB. Free memory was 56.9MB in the beginning and 51.9MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:31:05,436 INFO L158 Benchmark]: RCFGBuilder took 1564.54ms. Allocated memory is still 142.6MB. Free memory was 51.9MB in the beginning and 67.6MB in the end (delta: -15.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-11-24 01:31:05,437 INFO L158 Benchmark]: TraceAbstraction took 323433.15ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 66.9MB in the beginning and 990.8MB in the end (delta: -923.8MB). Peak memory consumption was 590.4MB. Max. memory is 16.1GB. [2024-11-24 01:31:05,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.04ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1060.65ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 62.2MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.12ms. Allocated memory is still 142.6MB. Free memory was 62.2MB in the beginning and 56.9MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.73ms. Allocated memory is still 142.6MB. Free memory was 56.9MB in the beginning and 51.9MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1564.54ms. Allocated memory is still 142.6MB. Free memory was 51.9MB in the beginning and 67.6MB in the end (delta: -15.8MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * TraceAbstraction took 323433.15ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 66.9MB in the beginning and 990.8MB in the end (delta: -923.8MB). Peak memory consumption was 590.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:31:08,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:31:08,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2024-11-24 01:31:08,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:31:08,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:31:08,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:31:08,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:31:08,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:31:08,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:31:08,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:31:08,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:31:08,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:31:08,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:31:08,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:31:08,215 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:31:08,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:31:08,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:31:08,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:31:08,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:31:08,216 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_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC 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 -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2024-11-24 01:31:08,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:31:08,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:31:08,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:31:08,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:31:08,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:31:08,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-24 01:31:11,561 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/515cbd045/74e270c4fea846439d89a6d7b7c73cfe/FLAG6f62d7fd1 [2024-11-24 01:31:12,064 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:31:12,068 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-24 01:31:12,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/515cbd045/74e270c4fea846439d89a6d7b7c73cfe/FLAG6f62d7fd1 [2024-11-24 01:31:12,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/data/515cbd045/74e270c4fea846439d89a6d7b7c73cfe [2024-11-24 01:31:12,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:31:12,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:31:12,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:31:12,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:31:12,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:31:12,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:31:12" (1/1) ... [2024-11-24 01:31:12,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4f5280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:12, skipping insertion in model container [2024-11-24 01:31:12,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:31:12" (1/1) ... [2024-11-24 01:31:12,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:31:12,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:31:12,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:31:13,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:31:13,163 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:31:13,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13 WrapperNode [2024-11-24 01:31:13,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:31:13,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:31:13,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:31:13,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:31:13,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,252 INFO L138 Inliner]: procedures = 373, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 414 [2024-11-24 01:31:13,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:31:13,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:31:13,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:31:13,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:31:13,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:31:13,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:31:13,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:31:13,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:31:13,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (1/1) ... [2024-11-24 01:31:13,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:31:13,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:13,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:31:13,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:31:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-24 01:31:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 01:31:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-24 01:31:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:31:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:31:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:31:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:31:13,446 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:31:13,665 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:31:13,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:31:15,145 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:31:15,145 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:31:15,188 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:31:15,189 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:31:15,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:31:15 BoogieIcfgContainer [2024-11-24 01:31:15,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:31:15,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:31:15,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:31:15,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:31:15,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:31:12" (1/3) ... [2024-11-24 01:31:15,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6323a434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:31:15, skipping insertion in model container [2024-11-24 01:31:15,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:31:13" (2/3) ... [2024-11-24 01:31:15,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6323a434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:31:15, skipping insertion in model container [2024-11-24 01:31:15,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:31:15" (3/3) ... [2024-11-24 01:31:15,205 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2024-11-24 01:31:15,222 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:31:15,224 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_13-arraycollapse_nr.i that has 2 procedures, 483 locations, 1 initial locations, 1 loop locations, and 30 error locations. [2024-11-24 01:31:15,225 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:31:15,484 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:31:15,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 486 places, 487 transitions, 978 flow [2024-11-24 01:31:15,843 INFO L124 PetriNetUnfolderBase]: 5/486 cut-off events. [2024-11-24 01:31:15,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:31:15,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 486 events. 5/486 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 365 event pairs, 0 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 359. Up to 2 conditions per place. [2024-11-24 01:31:15,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 486 places, 487 transitions, 978 flow [2024-11-24 01:31:15,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 485 places, 486 transitions, 975 flow [2024-11-24 01:31:15,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:31:15,904 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;@37899cfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:31:15,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-24 01:31:15,959 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:31:15,959 INFO L124 PetriNetUnfolderBase]: 2/104 cut-off events. [2024-11-24 01:31:15,959 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:31:15,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:15,960 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] [2024-11-24 01:31:15,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:15,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:15,969 INFO L85 PathProgramCache]: Analyzing trace with hash -793455294, now seen corresponding path program 1 times [2024-11-24 01:31:15,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:15,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045974013] [2024-11-24 01:31:15,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:15,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:15,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:15,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:15,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:31:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:16,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:31:16,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:16,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-24 01:31:16,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2024-11-24 01:31:16,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:16,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 42 [2024-11-24 01:31:16,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:16,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2024-11-24 01:31:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:16,477 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:16,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:16,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045974013] [2024-11-24 01:31:16,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045974013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:16,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:16,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:16,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104669569] [2024-11-24 01:31:16,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:16,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:16,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:16,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:19,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 487 [2024-11-24 01:31:19,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 486 transitions, 975 flow. Second operand has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-24 01:31:19,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:19,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 487 [2024-11-24 01:31:19,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:20,245 INFO L124 PetriNetUnfolderBase]: 365/1848 cut-off events. [2024-11-24 01:31:20,245 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:31:20,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2714 conditions, 1848 events. 365/1848 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9541 event pairs, 364 based on Foata normal form. 15/1723 useless extension candidates. Maximal degree in co-relation 2263. Up to 842 conditions per place. [2024-11-24 01:31:20,262 INFO L140 encePairwiseOnDemand]: 459/487 looper letters, 113 selfloop transitions, 20 changer transitions 2/478 dead transitions. [2024-11-24 01:31:20,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 478 transitions, 1225 flow [2024-11-24 01:31:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2217 transitions. [2024-11-24 01:31:20,290 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7587268993839835 [2024-11-24 01:31:20,292 INFO L175 Difference]: Start difference. First operand has 485 places, 486 transitions, 975 flow. Second operand 6 states and 2217 transitions. [2024-11-24 01:31:20,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 478 transitions, 1225 flow [2024-11-24 01:31:20,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 478 transitions, 1224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:31:20,309 INFO L231 Difference]: Finished difference. Result has 485 places, 476 transitions, 994 flow [2024-11-24 01:31:20,315 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=485, PETRI_TRANSITIONS=476} [2024-11-24 01:31:20,319 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 0 predicate places. [2024-11-24 01:31:20,319 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 476 transitions, 994 flow [2024-11-24 01:31:20,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-24 01:31:20,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:20,321 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] [2024-11-24 01:31:20,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:20,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:20,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2112481454, now seen corresponding path program 1 times [2024-11-24 01:31:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085914219] [2024-11-24 01:31:20,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:20,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:20,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:20,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:20,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:31:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:20,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:31:20,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:20,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-24 01:31:20,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2024-11-24 01:31:20,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:20,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2024-11-24 01:31:20,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:20,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 60 [2024-11-24 01:31:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:20,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:20,928 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085914219] [2024-11-24 01:31:20,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085914219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:20,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:20,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:20,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509419633] [2024-11-24 01:31:20,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:20,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:20,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:20,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:20,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:22,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 487 [2024-11-24 01:31:22,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 476 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-24 01:31:22,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:22,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 487 [2024-11-24 01:31:22,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:23,652 INFO L124 PetriNetUnfolderBase]: 365/1842 cut-off events. [2024-11-24 01:31:23,653 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:31:23,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 1842 events. 365/1842 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9534 event pairs, 364 based on Foata normal form. 0/1708 useless extension candidates. Maximal degree in co-relation 2349. Up to 842 conditions per place. [2024-11-24 01:31:23,662 INFO L140 encePairwiseOnDemand]: 463/487 looper letters, 113 selfloop transitions, 20 changer transitions 0/472 dead transitions. [2024-11-24 01:31:23,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 472 transitions, 1252 flow [2024-11-24 01:31:23,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2213 transitions. [2024-11-24 01:31:23,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7573579739904175 [2024-11-24 01:31:23,668 INFO L175 Difference]: Start difference. First operand has 485 places, 476 transitions, 994 flow. Second operand 6 states and 2213 transitions. [2024-11-24 01:31:23,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 472 transitions, 1252 flow [2024-11-24 01:31:23,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 472 transitions, 1212 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:23,678 INFO L231 Difference]: Finished difference. Result has 479 places, 472 transitions, 986 flow [2024-11-24 01:31:23,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=986, PETRI_PLACES=479, PETRI_TRANSITIONS=472} [2024-11-24 01:31:23,680 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, -6 predicate places. [2024-11-24 01:31:23,680 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 472 transitions, 986 flow [2024-11-24 01:31:23,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-24 01:31:23,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:23,682 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] [2024-11-24 01:31:23,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:31:23,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:23,886 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:23,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:23,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1355637868, now seen corresponding path program 1 times [2024-11-24 01:31:23,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:23,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902353054] [2024-11-24 01:31:23,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:23,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:23,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:23,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:23,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:31:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:24,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:31:24,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:24,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-24 01:31:24,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-24 01:31:24,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:24,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2024-11-24 01:31:24,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:24,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-11-24 01:31:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:24,666 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:24,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:24,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902353054] [2024-11-24 01:31:24,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902353054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:24,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:24,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:31:24,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444322111] [2024-11-24 01:31:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:24,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:31:24,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:24,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:31:24,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:31:26,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 487 [2024-11-24 01:31:26,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 472 transitions, 986 flow. Second operand has 9 states, 9 states have (on average 332.44444444444446) internal successors, (2992), 9 states have internal predecessors, (2992), 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) [2024-11-24 01:31:26,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:26,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 487 [2024-11-24 01:31:26,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:27,299 INFO L124 PetriNetUnfolderBase]: 391/2033 cut-off events. [2024-11-24 01:31:27,300 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 01:31:27,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3050 conditions, 2033 events. 391/2033 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10274 event pairs, 390 based on Foata normal form. 1/1892 useless extension candidates. Maximal degree in co-relation 2469. Up to 933 conditions per place. [2024-11-24 01:31:27,308 INFO L140 encePairwiseOnDemand]: 473/487 looper letters, 190 selfloop transitions, 12 changer transitions 0/521 dead transitions. [2024-11-24 01:31:27,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 521 transitions, 1504 flow [2024-11-24 01:31:27,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:31:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:31:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3174 transitions. [2024-11-24 01:31:27,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7241615331964408 [2024-11-24 01:31:27,317 INFO L175 Difference]: Start difference. First operand has 479 places, 472 transitions, 986 flow. Second operand 9 states and 3174 transitions. [2024-11-24 01:31:27,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 521 transitions, 1504 flow [2024-11-24 01:31:27,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 521 transitions, 1448 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:27,329 INFO L231 Difference]: Finished difference. Result has 488 places, 482 transitions, 1034 flow [2024-11-24 01:31:27,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1034, PETRI_PLACES=488, PETRI_TRANSITIONS=482} [2024-11-24 01:31:27,331 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 3 predicate places. [2024-11-24 01:31:27,331 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 482 transitions, 1034 flow [2024-11-24 01:31:27,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 332.44444444444446) internal successors, (2992), 9 states have internal predecessors, (2992), 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) [2024-11-24 01:31:27,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:27,333 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, 1, 1, 1] [2024-11-24 01:31:27,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:31:27,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:27,534 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:27,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2120105201, now seen corresponding path program 1 times [2024-11-24 01:31:27,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:27,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170417913] [2024-11-24 01:31:27,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:27,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:27,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:27,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:27,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:31:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:27,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 01:31:27,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:28,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:31:28,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-24 01:31:28,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:28,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2024-11-24 01:31:28,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:28,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 44 [2024-11-24 01:31:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:28,463 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:28,463 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170417913] [2024-11-24 01:31:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170417913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:28,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:31:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751803497] [2024-11-24 01:31:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:28,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:31:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:28,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:31:28,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:31:30,723 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 487 [2024-11-24 01:31:30,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 482 transitions, 1034 flow. Second operand has 9 states, 9 states have (on average 376.22222222222223) internal successors, (3386), 9 states have internal predecessors, (3386), 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) [2024-11-24 01:31:30,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:30,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 487 [2024-11-24 01:31:30,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:31,105 INFO L124 PetriNetUnfolderBase]: 55/899 cut-off events. [2024-11-24 01:31:31,105 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-24 01:31:31,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 899 events. 55/899 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2244 event pairs, 54 based on Foata normal form. 0/838 useless extension candidates. Maximal degree in co-relation 951. Up to 219 conditions per place. [2024-11-24 01:31:31,110 INFO L140 encePairwiseOnDemand]: 474/487 looper letters, 142 selfloop transitions, 12 changer transitions 0/516 dead transitions. [2024-11-24 01:31:31,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 516 transitions, 1410 flow [2024-11-24 01:31:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:31:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:31:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3503 transitions. [2024-11-24 01:31:31,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7992242756103126 [2024-11-24 01:31:31,119 INFO L175 Difference]: Start difference. First operand has 488 places, 482 transitions, 1034 flow. Second operand 9 states and 3503 transitions. [2024-11-24 01:31:31,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 516 transitions, 1410 flow [2024-11-24 01:31:31,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 516 transitions, 1406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:31:31,129 INFO L231 Difference]: Finished difference. Result has 499 places, 487 transitions, 1092 flow [2024-11-24 01:31:31,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1092, PETRI_PLACES=499, PETRI_TRANSITIONS=487} [2024-11-24 01:31:31,131 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 14 predicate places. [2024-11-24 01:31:31,131 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 487 transitions, 1092 flow [2024-11-24 01:31:31,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 376.22222222222223) internal successors, (3386), 9 states have internal predecessors, (3386), 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) [2024-11-24 01:31:31,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:31,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:31,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:31:31,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:31,335 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:31,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash -657267429, now seen corresponding path program 1 times [2024-11-24 01:31:31,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:31,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995477484] [2024-11-24 01:31:31,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:31,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:31,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:31,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:31,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:31:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:31,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:31:31,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:31,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 01:31:31,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2024-11-24 01:31:31,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:31,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2024-11-24 01:31:31,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:31,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2024-11-24 01:31:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:31,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:31,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:31,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995477484] [2024-11-24 01:31:31,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995477484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:31,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:31,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615506484] [2024-11-24 01:31:31,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:31,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:31,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:31,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:31,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:33,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 487 [2024-11-24 01:31:33,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 487 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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) [2024-11-24 01:31:33,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:33,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 487 [2024-11-24 01:31:33,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:34,000 INFO L124 PetriNetUnfolderBase]: 37/812 cut-off events. [2024-11-24 01:31:34,000 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-24 01:31:34,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 812 events. 37/812 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1740 event pairs, 36 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 843. Up to 198 conditions per place. [2024-11-24 01:31:34,004 INFO L140 encePairwiseOnDemand]: 469/487 looper letters, 97 selfloop transitions, 16 changer transitions 0/484 dead transitions. [2024-11-24 01:31:34,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 484 transitions, 1312 flow [2024-11-24 01:31:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2343 transitions. [2024-11-24 01:31:34,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8018480492813141 [2024-11-24 01:31:34,011 INFO L175 Difference]: Start difference. First operand has 499 places, 487 transitions, 1092 flow. Second operand 6 states and 2343 transitions. [2024-11-24 01:31:34,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 484 transitions, 1312 flow [2024-11-24 01:31:34,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 484 transitions, 1304 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 01:31:34,020 INFO L231 Difference]: Finished difference. Result has 498 places, 484 transitions, 1110 flow [2024-11-24 01:31:34,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1110, PETRI_PLACES=498, PETRI_TRANSITIONS=484} [2024-11-24 01:31:34,022 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 13 predicate places. [2024-11-24 01:31:34,022 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 484 transitions, 1110 flow [2024-11-24 01:31:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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) [2024-11-24 01:31:34,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:34,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:34,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:31:34,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:34,225 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:34,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1832056347, now seen corresponding path program 1 times [2024-11-24 01:31:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:34,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1529399162] [2024-11-24 01:31:34,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:34,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:34,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:34,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:34,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:31:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:34,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:31:34,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:34,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-24 01:31:34,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2024-11-24 01:31:34,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:34,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2024-11-24 01:31:34,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:34,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 60 [2024-11-24 01:31:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:34,638 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:34,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529399162] [2024-11-24 01:31:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529399162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:34,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:34,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:34,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148513613] [2024-11-24 01:31:34,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:34,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:34,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:34,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:36,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 487 [2024-11-24 01:31:36,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 484 transitions, 1110 flow. Second operand has 6 states, 6 states have (on average 340.1666666666667) internal successors, (2041), 6 states have internal predecessors, (2041), 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) [2024-11-24 01:31:36,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:36,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 487 [2024-11-24 01:31:36,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:36,917 INFO L124 PetriNetUnfolderBase]: 365/1942 cut-off events. [2024-11-24 01:31:36,917 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-24 01:31:36,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2949 conditions, 1942 events. 365/1942 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9529 event pairs, 364 based on Foata normal form. 0/1816 useless extension candidates. Maximal degree in co-relation 2681. Up to 898 conditions per place. [2024-11-24 01:31:36,926 INFO L140 encePairwiseOnDemand]: 469/487 looper letters, 139 selfloop transitions, 16 changer transitions 0/481 dead transitions. [2024-11-24 01:31:36,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 481 transitions, 1414 flow [2024-11-24 01:31:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2024-11-24 01:31:36,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7368240930869268 [2024-11-24 01:31:36,932 INFO L175 Difference]: Start difference. First operand has 498 places, 484 transitions, 1110 flow. Second operand 6 states and 2153 transitions. [2024-11-24 01:31:36,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 481 transitions, 1414 flow [2024-11-24 01:31:36,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 481 transitions, 1382 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:36,942 INFO L231 Difference]: Finished difference. Result has 495 places, 481 transitions, 1104 flow [2024-11-24 01:31:36,942 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1104, PETRI_PLACES=495, PETRI_TRANSITIONS=481} [2024-11-24 01:31:36,943 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 10 predicate places. [2024-11-24 01:31:36,943 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 481 transitions, 1104 flow [2024-11-24 01:31:36,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.1666666666667) internal successors, (2041), 6 states have internal predecessors, (2041), 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) [2024-11-24 01:31:36,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:36,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:36,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:37,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:37,149 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:37,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:37,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1358507116, now seen corresponding path program 1 times [2024-11-24 01:31:37,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:37,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911210747] [2024-11-24 01:31:37,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:37,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:37,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:37,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:37,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:31:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:37,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:31:37,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:37,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-24 01:31:37,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2024-11-24 01:31:37,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:37,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2024-11-24 01:31:37,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:37,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 60 [2024-11-24 01:31:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:37,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:37,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:37,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911210747] [2024-11-24 01:31:37,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911210747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:37,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:37,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:37,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449788354] [2024-11-24 01:31:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:37,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:37,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:37,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:38,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 487 [2024-11-24 01:31:38,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 481 transitions, 1104 flow. Second operand has 6 states, 6 states have (on average 343.6666666666667) internal successors, (2062), 6 states have internal predecessors, (2062), 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) [2024-11-24 01:31:38,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:38,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 487 [2024-11-24 01:31:38,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:39,485 INFO L124 PetriNetUnfolderBase]: 365/1938 cut-off events. [2024-11-24 01:31:39,485 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-24 01:31:39,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 1938 events. 365/1938 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9549 event pairs, 364 based on Foata normal form. 0/1816 useless extension candidates. Maximal degree in co-relation 2675. Up to 894 conditions per place. [2024-11-24 01:31:39,495 INFO L140 encePairwiseOnDemand]: 469/487 looper letters, 137 selfloop transitions, 15 changer transitions 0/478 dead transitions. [2024-11-24 01:31:39,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 478 transitions, 1402 flow [2024-11-24 01:31:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2168 transitions. [2024-11-24 01:31:39,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7419575633127995 [2024-11-24 01:31:39,500 INFO L175 Difference]: Start difference. First operand has 495 places, 481 transitions, 1104 flow. Second operand 6 states and 2168 transitions. [2024-11-24 01:31:39,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 478 transitions, 1402 flow [2024-11-24 01:31:39,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 478 transitions, 1370 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:39,576 INFO L231 Difference]: Finished difference. Result has 492 places, 478 transitions, 1096 flow [2024-11-24 01:31:39,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1096, PETRI_PLACES=492, PETRI_TRANSITIONS=478} [2024-11-24 01:31:39,579 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 7 predicate places. [2024-11-24 01:31:39,579 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 478 transitions, 1096 flow [2024-11-24 01:31:39,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 343.6666666666667) internal successors, (2062), 6 states have internal predecessors, (2062), 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) [2024-11-24 01:31:39,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:39,581 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:39,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:31:39,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:39,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:39,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:39,783 INFO L85 PathProgramCache]: Analyzing trace with hash -255036013, now seen corresponding path program 1 times [2024-11-24 01:31:39,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:39,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033365331] [2024-11-24 01:31:39,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:39,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:39,787 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:39,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:31:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:40,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:31:40,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:40,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-24 01:31:40,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-24 01:31:41,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:41,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2024-11-24 01:31:41,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:41,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-11-24 01:31:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:41,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 01:31:41,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:41,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033365331] [2024-11-24 01:31:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033365331] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:41,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:41,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-24 01:31:41,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303891995] [2024-11-24 01:31:41,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:41,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:41,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:41,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:41,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:31:43,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 487 [2024-11-24 01:31:43,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 478 transitions, 1096 flow. Second operand has 6 states, 6 states have (on average 355.1666666666667) internal successors, (2131), 6 states have internal predecessors, (2131), 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) [2024-11-24 01:31:43,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:43,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 487 [2024-11-24 01:31:43,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:43,502 INFO L124 PetriNetUnfolderBase]: 391/2019 cut-off events. [2024-11-24 01:31:43,502 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-24 01:31:43,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3064 conditions, 2019 events. 391/2019 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10238 event pairs, 390 based on Foata normal form. 1/1891 useless extension candidates. Maximal degree in co-relation 2798. Up to 947 conditions per place. [2024-11-24 01:31:43,512 INFO L140 encePairwiseOnDemand]: 481/487 looper letters, 136 selfloop transitions, 10 changer transitions 0/477 dead transitions. [2024-11-24 01:31:43,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 477 transitions, 1384 flow [2024-11-24 01:31:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2218 transitions. [2024-11-24 01:31:43,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.759069130732375 [2024-11-24 01:31:43,517 INFO L175 Difference]: Start difference. First operand has 492 places, 478 transitions, 1096 flow. Second operand 6 states and 2218 transitions. [2024-11-24 01:31:43,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 477 transitions, 1384 flow [2024-11-24 01:31:43,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 477 transitions, 1354 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:43,529 INFO L231 Difference]: Finished difference. Result has 491 places, 477 transitions, 1082 flow [2024-11-24 01:31:43,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=491, PETRI_TRANSITIONS=477} [2024-11-24 01:31:43,531 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 6 predicate places. [2024-11-24 01:31:43,531 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 477 transitions, 1082 flow [2024-11-24 01:31:43,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.1666666666667) internal successors, (2131), 6 states have internal predecessors, (2131), 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) [2024-11-24 01:31:43,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:43,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:43,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:31:43,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:43,737 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:43,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:43,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2069476304, now seen corresponding path program 1 times [2024-11-24 01:31:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489644476] [2024-11-24 01:31:43,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:43,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:43,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:43,741 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:43,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:31:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:44,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:31:44,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:44,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:44,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:44,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489644476] [2024-11-24 01:31:44,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489644476] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:31:44,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:31:44,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-24 01:31:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425235198] [2024-11-24 01:31:44,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:44,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:31:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:44,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:31:44,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:31:44,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 487 [2024-11-24 01:31:44,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 477 transitions, 1082 flow. Second operand has 8 states, 8 states have (on average 470.75) internal successors, (3766), 8 states have internal predecessors, (3766), 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) [2024-11-24 01:31:44,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:44,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 487 [2024-11-24 01:31:44,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:45,088 INFO L124 PetriNetUnfolderBase]: 7/752 cut-off events. [2024-11-24 01:31:45,089 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-24 01:31:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 752 events. 7/752 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 395 event pairs, 6 based on Foata normal form. 2/732 useless extension candidates. Maximal degree in co-relation 478. Up to 24 conditions per place. [2024-11-24 01:31:45,091 INFO L140 encePairwiseOnDemand]: 481/487 looper letters, 14 selfloop transitions, 9 changer transitions 0/485 dead transitions. [2024-11-24 01:31:45,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 485 transitions, 1146 flow [2024-11-24 01:31:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:31:45,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:31:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4246 transitions. [2024-11-24 01:31:45,098 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9687428701802419 [2024-11-24 01:31:45,098 INFO L175 Difference]: Start difference. First operand has 491 places, 477 transitions, 1082 flow. Second operand 9 states and 4246 transitions. [2024-11-24 01:31:45,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 485 transitions, 1146 flow [2024-11-24 01:31:45,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 485 transitions, 1126 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:45,108 INFO L231 Difference]: Finished difference. Result has 497 places, 483 transitions, 1112 flow [2024-11-24 01:31:45,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1112, PETRI_PLACES=497, PETRI_TRANSITIONS=483} [2024-11-24 01:31:45,110 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 12 predicate places. [2024-11-24 01:31:45,110 INFO L471 AbstractCegarLoop]: Abstraction has has 497 places, 483 transitions, 1112 flow [2024-11-24 01:31:45,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 470.75) internal successors, (3766), 8 states have internal predecessors, (3766), 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) [2024-11-24 01:31:45,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:45,112 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:45,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:45,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:45,313 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:45,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1851611000, now seen corresponding path program 1 times [2024-11-24 01:31:45,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:45,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392376036] [2024-11-24 01:31:45,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:45,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:45,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:45,316 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:45,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:31:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:45,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:31:45,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:46,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:31:46,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2024-11-24 01:31:46,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:46,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2024-11-24 01:31:46,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:46,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 44 [2024-11-24 01:31:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:46,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-24 01:31:46,849 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392376036] [2024-11-24 01:31:46,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392376036] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:46,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:46,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-24 01:31:46,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217549419] [2024-11-24 01:31:46,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:46,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:46,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:46,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:46,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:31:49,184 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 487 [2024-11-24 01:31:49,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 483 transitions, 1112 flow. Second operand has 6 states, 6 states have (on average 396.1666666666667) internal successors, (2377), 6 states have internal predecessors, (2377), 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) [2024-11-24 01:31:49,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:49,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 487 [2024-11-24 01:31:49,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:49,613 INFO L124 PetriNetUnfolderBase]: 55/993 cut-off events. [2024-11-24 01:31:49,613 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-24 01:31:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 993 events. 55/993 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1992 event pairs, 54 based on Foata normal form. 2/947 useless extension candidates. Maximal degree in co-relation 888. Up to 257 conditions per place. [2024-11-24 01:31:49,616 INFO L140 encePairwiseOnDemand]: 481/487 looper letters, 94 selfloop transitions, 10 changer transitions 0/482 dead transitions. [2024-11-24 01:31:49,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 482 transitions, 1316 flow [2024-11-24 01:31:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2428 transitions. [2024-11-24 01:31:49,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8309377138945927 [2024-11-24 01:31:49,619 INFO L175 Difference]: Start difference. First operand has 497 places, 483 transitions, 1112 flow. Second operand 6 states and 2428 transitions. [2024-11-24 01:31:49,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 482 transitions, 1316 flow [2024-11-24 01:31:49,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 482 transitions, 1314 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-24 01:31:49,629 INFO L231 Difference]: Finished difference. Result has 501 places, 482 transitions, 1126 flow [2024-11-24 01:31:49,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1126, PETRI_PLACES=501, PETRI_TRANSITIONS=482} [2024-11-24 01:31:49,630 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 16 predicate places. [2024-11-24 01:31:49,630 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 482 transitions, 1126 flow [2024-11-24 01:31:49,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 396.1666666666667) internal successors, (2377), 6 states have internal predecessors, (2377), 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) [2024-11-24 01:31:49,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:49,632 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:49,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:49,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:49,833 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:49,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash 478197986, now seen corresponding path program 2 times [2024-11-24 01:31:49,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:49,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021029291] [2024-11-24 01:31:49,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:49,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:49,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:49,837 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:49,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:31:50,139 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:31:50,139 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:50,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:31:50,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:50,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-24 01:31:50,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2024-11-24 01:31:50,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:50,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2024-11-24 01:31:50,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:50,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2024-11-24 01:31:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-24 01:31:50,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:50,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:50,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021029291] [2024-11-24 01:31:50,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021029291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:50,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:50,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886541814] [2024-11-24 01:31:50,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:50,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:50,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:50,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:50,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:52,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 487 [2024-11-24 01:31:52,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 482 transitions, 1126 flow. Second operand has 6 states, 6 states have (on average 393.3333333333333) internal successors, (2360), 6 states have internal predecessors, (2360), 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) [2024-11-24 01:31:52,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:52,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 487 [2024-11-24 01:31:52,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:53,400 INFO L124 PetriNetUnfolderBase]: 257/2056 cut-off events. [2024-11-24 01:31:53,400 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-24 01:31:53,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2846 conditions, 2056 events. 257/2056 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10101 event pairs, 34 based on Foata normal form. 0/1930 useless extension candidates. Maximal degree in co-relation 2370. Up to 523 conditions per place. [2024-11-24 01:31:53,408 INFO L140 encePairwiseOnDemand]: 458/487 looper letters, 104 selfloop transitions, 75 changer transitions 0/559 dead transitions. [2024-11-24 01:31:53,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 559 transitions, 1638 flow [2024-11-24 01:31:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:31:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2492 transitions. [2024-11-24 01:31:53,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8528405201916496 [2024-11-24 01:31:53,413 INFO L175 Difference]: Start difference. First operand has 501 places, 482 transitions, 1126 flow. Second operand 6 states and 2492 transitions. [2024-11-24 01:31:53,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 559 transitions, 1638 flow [2024-11-24 01:31:53,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 559 transitions, 1618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:31:53,424 INFO L231 Difference]: Finished difference. Result has 505 places, 550 transitions, 1586 flow [2024-11-24 01:31:53,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1586, PETRI_PLACES=505, PETRI_TRANSITIONS=550} [2024-11-24 01:31:53,426 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 20 predicate places. [2024-11-24 01:31:53,426 INFO L471 AbstractCegarLoop]: Abstraction has has 505 places, 550 transitions, 1586 flow [2024-11-24 01:31:53,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 393.3333333333333) internal successors, (2360), 6 states have internal predecessors, (2360), 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) [2024-11-24 01:31:53,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:53,428 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:53,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:31:53,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:53,628 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:53,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:53,630 INFO L85 PathProgramCache]: Analyzing trace with hash 698070701, now seen corresponding path program 1 times [2024-11-24 01:31:53,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:53,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135391722] [2024-11-24 01:31:53,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:53,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:53,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:53,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:53,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:31:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:54,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:31:54,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:54,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:55,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135391722] [2024-11-24 01:31:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135391722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:31:55,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:31:55,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-24 01:31:55,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899681670] [2024-11-24 01:31:55,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:55,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:31:55,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:55,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:31:55,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:31:56,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 487 [2024-11-24 01:31:56,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 550 transitions, 1586 flow. Second operand has 16 states, 16 states have (on average 470.875) internal successors, (7534), 16 states have internal predecessors, (7534), 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) [2024-11-24 01:31:56,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:31:56,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 487 [2024-11-24 01:31:56,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:31:57,809 INFO L124 PetriNetUnfolderBase]: 144/2177 cut-off events. [2024-11-24 01:31:57,810 INFO L125 PetriNetUnfolderBase]: For 208/222 co-relation queries the response was YES. [2024-11-24 01:31:57,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3026 conditions, 2177 events. 144/2177 cut-off events. For 208/222 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7436 event pairs, 23 based on Foata normal form. 4/2094 useless extension candidates. Maximal degree in co-relation 2089. Up to 208 conditions per place. [2024-11-24 01:31:57,820 INFO L140 encePairwiseOnDemand]: 481/487 looper letters, 19 selfloop transitions, 21 changer transitions 0/568 dead transitions. [2024-11-24 01:31:57,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 568 transitions, 1762 flow [2024-11-24 01:31:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:31:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 01:31:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9892 transitions. [2024-11-24 01:31:57,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9672435709396695 [2024-11-24 01:31:57,833 INFO L175 Difference]: Start difference. First operand has 505 places, 550 transitions, 1586 flow. Second operand 21 states and 9892 transitions. [2024-11-24 01:31:57,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 568 transitions, 1762 flow [2024-11-24 01:31:57,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 568 transitions, 1762 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:31:57,845 INFO L231 Difference]: Finished difference. Result has 530 places, 563 transitions, 1724 flow [2024-11-24 01:31:57,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1586, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1724, PETRI_PLACES=530, PETRI_TRANSITIONS=563} [2024-11-24 01:31:57,847 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 45 predicate places. [2024-11-24 01:31:57,847 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 563 transitions, 1724 flow [2024-11-24 01:31:57,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 470.875) internal successors, (7534), 16 states have internal predecessors, (7534), 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) [2024-11-24 01:31:57,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:31:57,851 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:57,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:31:58,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:58,051 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:31:58,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash -82317295, now seen corresponding path program 2 times [2024-11-24 01:31:58,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:31:58,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030718058] [2024-11-24 01:31:58,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:58,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:58,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:58,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:31:58,617 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:31:58,617 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:58,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:31:58,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:58,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-24 01:31:58,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2024-11-24 01:31:58,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:58,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 46 [2024-11-24 01:31:58,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:31:58,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 63 [2024-11-24 01:31:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2024-11-24 01:31:58,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:31:58,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:31:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030718058] [2024-11-24 01:31:58,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030718058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:58,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:31:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938632009] [2024-11-24 01:31:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:58,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:31:58,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:58,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:00,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 487 [2024-11-24 01:32:00,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 563 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 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) [2024-11-24 01:32:00,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:32:00,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 487 [2024-11-24 01:32:00,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:32:02,117 INFO L124 PetriNetUnfolderBase]: 212/2358 cut-off events. [2024-11-24 01:32:02,117 INFO L125 PetriNetUnfolderBase]: For 477/520 co-relation queries the response was YES. [2024-11-24 01:32:02,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3807 conditions, 2358 events. 212/2358 cut-off events. For 477/520 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8693 event pairs, 55 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 2685. Up to 572 conditions per place. [2024-11-24 01:32:02,126 INFO L140 encePairwiseOnDemand]: 481/487 looper letters, 155 selfloop transitions, 5 changer transitions 0/562 dead transitions. [2024-11-24 01:32:02,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 562 transitions, 2042 flow [2024-11-24 01:32:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:32:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2443 transitions. [2024-11-24 01:32:02,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8360711841204654 [2024-11-24 01:32:02,133 INFO L175 Difference]: Start difference. First operand has 530 places, 563 transitions, 1724 flow. Second operand 6 states and 2443 transitions. [2024-11-24 01:32:02,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 562 transitions, 2042 flow [2024-11-24 01:32:02,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 562 transitions, 2010 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-24 01:32:02,148 INFO L231 Difference]: Finished difference. Result has 528 places, 562 transitions, 1700 flow [2024-11-24 01:32:02,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1700, PETRI_PLACES=528, PETRI_TRANSITIONS=562} [2024-11-24 01:32:02,150 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 43 predicate places. [2024-11-24 01:32:02,151 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 562 transitions, 1700 flow [2024-11-24 01:32:02,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 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) [2024-11-24 01:32:02,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:32:02,152 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:02,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 01:32:02,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:02,353 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:32:02,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash 445731996, now seen corresponding path program 1 times [2024-11-24 01:32:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:32:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273880278] [2024-11-24 01:32:02,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:02,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:02,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:02,362 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:02,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 01:32:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:03,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:32:03,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:32:04,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:32:08,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:32:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273880278] [2024-11-24 01:32:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273880278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:32:08,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:32:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2024-11-24 01:32:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818417890] [2024-11-24 01:32:08,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:08,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-24 01:32:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:32:08,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-24 01:32:08,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:32:14,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 487 [2024-11-24 01:32:14,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 562 transitions, 1700 flow. Second operand has 33 states, 33 states have (on average 470.93939393939394) internal successors, (15541), 33 states have internal predecessors, (15541), 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) [2024-11-24 01:32:14,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:32:14,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 487 [2024-11-24 01:32:14,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:32:17,644 INFO L124 PetriNetUnfolderBase]: 145/3025 cut-off events. [2024-11-24 01:32:17,644 INFO L125 PetriNetUnfolderBase]: For 479/493 co-relation queries the response was YES. [2024-11-24 01:32:17,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4154 conditions, 3025 events. 145/3025 cut-off events. For 479/493 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8677 event pairs, 23 based on Foata normal form. 7/2946 useless extension candidates. Maximal degree in co-relation 2262. Up to 208 conditions per place. [2024-11-24 01:32:17,652 INFO L140 encePairwiseOnDemand]: 480/487 looper letters, 24 selfloop transitions, 49 changer transitions 0/600 dead transitions. [2024-11-24 01:32:17,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 600 transitions, 2150 flow [2024-11-24 01:32:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-24 01:32:17,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-24 01:32:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 22122 transitions. [2024-11-24 01:32:17,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9664904539298353 [2024-11-24 01:32:17,666 INFO L175 Difference]: Start difference. First operand has 528 places, 562 transitions, 1700 flow. Second operand 47 states and 22122 transitions. [2024-11-24 01:32:17,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 600 transitions, 2150 flow [2024-11-24 01:32:17,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 600 transitions, 2140 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:32:17,679 INFO L231 Difference]: Finished difference. Result has 571 places, 589 transitions, 2016 flow [2024-11-24 01:32:17,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=2016, PETRI_PLACES=571, PETRI_TRANSITIONS=589} [2024-11-24 01:32:17,680 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 86 predicate places. [2024-11-24 01:32:17,680 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 589 transitions, 2016 flow [2024-11-24 01:32:17,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 470.93939393939394) internal successors, (15541), 33 states have internal predecessors, (15541), 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) [2024-11-24 01:32:17,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:32:17,685 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:17,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 01:32:17,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:17,886 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:32:17,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1871444015, now seen corresponding path program 2 times [2024-11-24 01:32:17,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:32:17,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335857049] [2024-11-24 01:32:17,892 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:17,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:17,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:17,895 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:17,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 01:32:18,685 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:32:18,685 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:32:18,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:32:18,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:18,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 01:32:18,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2024-11-24 01:32:18,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:18,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2024-11-24 01:32:18,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:18,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2024-11-24 01:32:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2024-11-24 01:32:18,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:32:18,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:32:18,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335857049] [2024-11-24 01:32:18,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335857049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:18,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:18,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:32:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742734461] [2024-11-24 01:32:18,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:18,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:32:18,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:18,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:20,728 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 487 [2024-11-24 01:32:20,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 589 transitions, 2016 flow. Second operand has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 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) [2024-11-24 01:32:20,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:32:20,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 487 [2024-11-24 01:32:20,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:32:22,857 INFO L124 PetriNetUnfolderBase]: 531/4122 cut-off events. [2024-11-24 01:32:22,857 INFO L125 PetriNetUnfolderBase]: For 1074/1165 co-relation queries the response was YES. [2024-11-24 01:32:22,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7102 conditions, 4122 events. 531/4122 cut-off events. For 1074/1165 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 17455 event pairs, 93 based on Foata normal form. 16/3973 useless extension candidates. Maximal degree in co-relation 4688. Up to 1237 conditions per place. [2024-11-24 01:32:22,872 INFO L140 encePairwiseOnDemand]: 464/487 looper letters, 168 selfloop transitions, 130 changer transitions 0/726 dead transitions. [2024-11-24 01:32:22,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 726 transitions, 3262 flow [2024-11-24 01:32:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:32:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2024-11-24 01:32:22,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8627652292950034 [2024-11-24 01:32:22,876 INFO L175 Difference]: Start difference. First operand has 571 places, 589 transitions, 2016 flow. Second operand 6 states and 2521 transitions. [2024-11-24 01:32:22,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 726 transitions, 3262 flow [2024-11-24 01:32:22,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 726 transitions, 3147 flow, removed 34 selfloop flow, removed 23 redundant places. [2024-11-24 01:32:22,897 INFO L231 Difference]: Finished difference. Result has 558 places, 718 transitions, 3129 flow [2024-11-24 01:32:22,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3129, PETRI_PLACES=558, PETRI_TRANSITIONS=718} [2024-11-24 01:32:22,899 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 73 predicate places. [2024-11-24 01:32:22,899 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 718 transitions, 3129 flow [2024-11-24 01:32:22,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 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) [2024-11-24 01:32:22,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:32:22,901 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:22,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 01:32:23,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:23,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:32:23,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 365297863, now seen corresponding path program 1 times [2024-11-24 01:32:23,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:32:23,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559912471] [2024-11-24 01:32:23,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:23,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:23,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:23,109 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 01:32:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:24,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:32:24,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:24,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-24 01:32:24,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2024-11-24 01:32:24,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 42 [2024-11-24 01:32:24,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:24,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2024-11-24 01:32:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4801 trivial. 0 not checked. [2024-11-24 01:32:24,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:32:24,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:32:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559912471] [2024-11-24 01:32:24,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559912471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:24,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:24,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:32:24,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056589669] [2024-11-24 01:32:24,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:24,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:24,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:32:24,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:24,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:26,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 487 [2024-11-24 01:32:26,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 718 transitions, 3129 flow. Second operand has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 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) [2024-11-24 01:32:26,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:32:26,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 487 [2024-11-24 01:32:26,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:32:28,943 INFO L124 PetriNetUnfolderBase]: 1092/5625 cut-off events. [2024-11-24 01:32:28,943 INFO L125 PetriNetUnfolderBase]: For 2617/2641 co-relation queries the response was YES. [2024-11-24 01:32:28,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11756 conditions, 5625 events. 1092/5625 cut-off events. For 2617/2641 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 30101 event pairs, 387 based on Foata normal form. 0/5379 useless extension candidates. Maximal degree in co-relation 9278. Up to 2486 conditions per place. [2024-11-24 01:32:28,966 INFO L140 encePairwiseOnDemand]: 468/487 looper letters, 282 selfloop transitions, 74 changer transitions 0/791 dead transitions. [2024-11-24 01:32:28,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 791 transitions, 4139 flow [2024-11-24 01:32:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:32:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2320 transitions. [2024-11-24 01:32:28,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7939767282683093 [2024-11-24 01:32:28,970 INFO L175 Difference]: Start difference. First operand has 558 places, 718 transitions, 3129 flow. Second operand 6 states and 2320 transitions. [2024-11-24 01:32:28,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 791 transitions, 4139 flow [2024-11-24 01:32:28,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 791 transitions, 4108 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:32:28,996 INFO L231 Difference]: Finished difference. Result has 566 places, 783 transitions, 3736 flow [2024-11-24 01:32:28,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=3098, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3736, PETRI_PLACES=566, PETRI_TRANSITIONS=783} [2024-11-24 01:32:28,997 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 81 predicate places. [2024-11-24 01:32:28,997 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 783 transitions, 3736 flow [2024-11-24 01:32:28,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 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) [2024-11-24 01:32:28,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:32:28,999 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:29,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-24 01:32:29,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:29,199 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:32:29,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash 299143497, now seen corresponding path program 1 times [2024-11-24 01:32:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:32:29,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005130773] [2024-11-24 01:32:29,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:29,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:29,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:29,209 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:29,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 01:32:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:31,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:32:31,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:31,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:32:31,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2024-11-24 01:32:31,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:31,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2024-11-24 01:32:31,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:32:31,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2024-11-24 01:32:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4813 trivial. 0 not checked. [2024-11-24 01:32:31,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:32:31,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:32:31,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005130773] [2024-11-24 01:32:31,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005130773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:31,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:31,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:32:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482725766] [2024-11-24 01:32:31,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:31,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:32:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:32:31,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:32:31,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:32:33,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 487 [2024-11-24 01:32:33,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 783 transitions, 3736 flow. Second operand has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 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) [2024-11-24 01:32:33,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:32:33,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 487 [2024-11-24 01:32:33,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:32:35,989 INFO L124 PetriNetUnfolderBase]: 982/5329 cut-off events. [2024-11-24 01:32:35,989 INFO L125 PetriNetUnfolderBase]: For 4696/4935 co-relation queries the response was YES. [2024-11-24 01:32:35,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12105 conditions, 5329 events. 982/5329 cut-off events. For 4696/4935 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 27215 event pairs, 83 based on Foata normal form. 72/5244 useless extension candidates. Maximal degree in co-relation 9755. Up to 1616 conditions per place. [2024-11-24 01:32:36,008 INFO L140 encePairwiseOnDemand]: 464/487 looper letters, 311 selfloop transitions, 141 changer transitions 5/927 dead transitions. [2024-11-24 01:32:36,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 927 transitions, 5668 flow [2024-11-24 01:32:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:32:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:32:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2512 transitions. [2024-11-24 01:32:36,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8596851471594799 [2024-11-24 01:32:36,012 INFO L175 Difference]: Start difference. First operand has 566 places, 783 transitions, 3736 flow. Second operand 6 states and 2512 transitions. [2024-11-24 01:32:36,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 927 transitions, 5668 flow [2024-11-24 01:32:36,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 927 transitions, 5632 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-24 01:32:36,051 INFO L231 Difference]: Finished difference. Result has 576 places, 917 transitions, 5350 flow [2024-11-24 01:32:36,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=3700, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5350, PETRI_PLACES=576, PETRI_TRANSITIONS=917} [2024-11-24 01:32:36,053 INFO L279 CegarLoopForPetriNet]: 485 programPoint places, 91 predicate places. [2024-11-24 01:32:36,053 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 917 transitions, 5350 flow [2024-11-24 01:32:36,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 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) [2024-11-24 01:32:36,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:32:36,054 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:36,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-24 01:32:36,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:36,258 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 01:32:36,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:36,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1378187340, now seen corresponding path program 1 times [2024-11-24 01:32:36,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:32:36,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885865600] [2024-11-24 01:32:36,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:36,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:36,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:36,264 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:36,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d91de14-b77a-4d6f-8bce-9158e7759bd5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 01:32:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:39,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-24 01:32:39,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:39,334 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:39,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:39,685 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:39,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:40,173 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:40,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:40,639 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:40,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:41,129 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:41,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:41,396 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:41,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:42,000 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:42,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:42,288 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:42,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:42,855 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:42,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:43,196 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-24 01:32:43,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-24 01:32:43,782 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-24 01:32:43,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-24 01:32:44,620 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-24 01:32:44,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-24 01:32:45,736 INFO L349 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2024-11-24 01:32:45,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2024-11-24 01:32:47,241 INFO L349 Elim1Store]: treesize reduction 66, result has 34.0 percent of original size [2024-11-24 01:32:47,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 59 [2024-11-24 01:32:51,745 INFO L349 Elim1Store]: treesize reduction 96, result has 31.9 percent of original size [2024-11-24 01:32:51,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 68 [2024-11-24 01:32:54,133 INFO L349 Elim1Store]: treesize reduction 96, result has 31.9 percent of original size [2024-11-24 01:32:54,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 68 [2024-11-24 01:33:02,430 INFO L349 Elim1Store]: treesize reduction 96, result has 31.9 percent of original size [2024-11-24 01:33:02,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 68 [2024-11-24 01:33:04,467 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2024-11-24 01:33:04,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-11-24 01:33:09,212 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2024-11-24 01:33:09,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-11-24 01:33:11,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:33:12,281 INFO L349 Elim1Store]: treesize reduction 162, result has 20.6 percent of original size [2024-11-24 01:33:12,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 48 treesize of output 74 [2024-11-24 01:33:12,780 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-24 01:33:12,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-24 01:33:12,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:33:13,699 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-24 01:33:13,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-24 01:33:13,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:33:14,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-24 01:33:17,963 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2024-11-24 01:33:17,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-11-24 01:33:22,061 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2024-11-24 01:33:22,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-11-24 01:33:27,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 01:33:27,929 INFO L349 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2024-11-24 01:33:27,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 40 [2024-11-24 01:33:28,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2024-11-24 01:33:28,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:33:28,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 42 [2024-11-24 01:33:28,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:33:28,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2024-11-24 01:33:28,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:33:28,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 63 [2024-11-24 01:33:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4813 backedges. 3292 proven. 16 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2024-11-24 01:33:28,473 INFO L312 TraceCheckSpWp]: Computing backward predicates...