./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU --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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:48,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:48,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:07:48,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:48,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:48,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:48,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:48,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:48,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:48,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:48,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:48,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:48,166 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:48,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:48,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:07:48,167 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:48,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:48,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:48,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:48,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:07:48,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:48,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:07:48,174 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:07:48,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:48,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:48,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:48,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:48,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:48,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:48,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:48,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:48,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:48,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:48,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:48,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:07:48,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:48,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:48,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:48,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:48,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:48,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:48,191 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2024-10-31 22:07:48,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:48,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:48,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:48,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:48,553 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:48,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/stack_longer-2.i Unable to find full path for "g++" [2024-10-31 22:07:51,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:51,345 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:51,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/sv-benchmarks/c/pthread/stack_longer-2.i [2024-10-31 22:07:51,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/data/6548cb355/744ea2c306ce48698b7c38c805b86405/FLAGbffe4dee3 [2024-10-31 22:07:51,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/data/6548cb355/744ea2c306ce48698b7c38c805b86405 [2024-10-31 22:07:51,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:51,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:51,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:51,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:51,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:51,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:51" (1/1) ... [2024-10-31 22:07:51,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508858e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:51, skipping insertion in model container [2024-10-31 22:07:51,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:51" (1/1) ... [2024-10-31 22:07:51,731 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:52,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:52,361 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:52,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:52,549 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:52,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52 WrapperNode [2024-10-31 22:07:52,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:52,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:52,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:52,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:52,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,677 INFO L138 Inliner]: procedures = 277, calls = 431, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 583 [2024-10-31 22:07:52,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:52,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:52,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:52,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:52,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:52,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:52,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:52,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:52,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (1/1) ... [2024-10-31 22:07:52,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:52,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:52,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:52,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-31 22:07:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-31 22:07:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-31 22:07:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-31 22:07:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:52,858 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:07:53,007 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:53,011 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:53,899 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:53,899 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:53,932 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:53,932 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:07:53,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:53 BoogieIcfgContainer [2024-10-31 22:07:53,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:53,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:53,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:53,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:53,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:51" (1/3) ... [2024-10-31 22:07:53,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282a5227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:53, skipping insertion in model container [2024-10-31 22:07:53,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:52" (2/3) ... [2024-10-31 22:07:53,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282a5227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:53, skipping insertion in model container [2024-10-31 22:07:53,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:53" (3/3) ... [2024-10-31 22:07:53,942 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2024-10-31 22:07:53,961 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:53,961 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-10-31 22:07:53,961 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:54,077 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:07:54,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 600 places, 605 transitions, 1224 flow [2024-10-31 22:07:54,442 INFO L124 PetriNetUnfolderBase]: 12/603 cut-off events. [2024-10-31 22:07:54,442 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:07:54,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 603 events. 12/603 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 489 event pairs, 0 based on Foata normal form. 0/580 useless extension candidates. Maximal degree in co-relation 519. Up to 3 conditions per place. [2024-10-31 22:07:54,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 600 places, 605 transitions, 1224 flow [2024-10-31 22:07:54,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 598 transitions, 1205 flow [2024-10-31 22:07:54,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:54,478 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1dd963c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:54,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-31 22:07:54,576 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:54,577 INFO L124 PetriNetUnfolderBase]: 2/462 cut-off events. [2024-10-31 22:07:54,577 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:07:54,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:54,578 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:54,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:07:54,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:54,585 INFO L85 PathProgramCache]: Analyzing trace with hash 642632015, now seen corresponding path program 1 times [2024-10-31 22:07:54,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:54,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020721122] [2024-10-31 22:07:54,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:54,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:55,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:55,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:55,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020721122] [2024-10-31 22:07:55,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020721122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:55,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:55,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:55,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409456861] [2024-10-31 22:07:55,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:55,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:55,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:55,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:55,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 605 [2024-10-31 22:07:55,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 598 transitions, 1205 flow. Second operand has 3 states, 3 states have (on average 566.6666666666666) internal successors, (1700), 3 states have internal predecessors, (1700), 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) [2024-10-31 22:07:55,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:55,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 605 [2024-10-31 22:07:55,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:56,722 INFO L124 PetriNetUnfolderBase]: 274/2768 cut-off events. [2024-10-31 22:07:56,722 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-10-31 22:07:56,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 2768 events. 274/2768 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 17041 event pairs, 76 based on Foata normal form. 211/2735 useless extension candidates. Maximal degree in co-relation 2779. Up to 405 conditions per place. [2024-10-31 22:07:56,743 INFO L140 encePairwiseOnDemand]: 575/605 looper letters, 36 selfloop transitions, 16 changer transitions 0/607 dead transitions. [2024-10-31 22:07:56,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 607 transitions, 1333 flow [2024-10-31 22:07:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1768 transitions. [2024-10-31 22:07:56,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9741046831955923 [2024-10-31 22:07:56,766 INFO L175 Difference]: Start difference. First operand has 593 places, 598 transitions, 1205 flow. Second operand 3 states and 1768 transitions. [2024-10-31 22:07:56,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 607 transitions, 1333 flow [2024-10-31 22:07:56,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 607 transitions, 1325 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:07:56,788 INFO L231 Difference]: Finished difference. Result has 588 places, 601 transitions, 1316 flow [2024-10-31 22:07:56,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1316, PETRI_PLACES=588, PETRI_TRANSITIONS=601} [2024-10-31 22:07:56,796 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2024-10-31 22:07:56,797 INFO L471 AbstractCegarLoop]: Abstraction has has 588 places, 601 transitions, 1316 flow [2024-10-31 22:07:56,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 566.6666666666666) internal successors, (1700), 3 states have internal predecessors, (1700), 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) [2024-10-31 22:07:56,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:56,800 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:56,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:56,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:07:56,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:56,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1054791839, now seen corresponding path program 1 times [2024-10-31 22:07:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:56,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786509988] [2024-10-31 22:07:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:57,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:57,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786509988] [2024-10-31 22:07:57,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786509988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:57,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:57,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:07:57,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543039468] [2024-10-31 22:07:57,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:57,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 605 [2024-10-31 22:07:57,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 601 transitions, 1316 flow. Second operand has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 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) [2024-10-31 22:07:57,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:57,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 605 [2024-10-31 22:07:57,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:58,834 INFO L124 PetriNetUnfolderBase]: 277/3419 cut-off events. [2024-10-31 22:07:58,835 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-10-31 22:07:58,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4273 conditions, 3419 events. 277/3419 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22707 event pairs, 91 based on Foata normal form. 22/3189 useless extension candidates. Maximal degree in co-relation 3628. Up to 350 conditions per place. [2024-10-31 22:07:58,859 INFO L140 encePairwiseOnDemand]: 600/605 looper letters, 18 selfloop transitions, 3 changer transitions 0/608 dead transitions. [2024-10-31 22:07:58,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 608 transitions, 1375 flow [2024-10-31 22:07:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1766 transitions. [2024-10-31 22:07:58,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9730027548209367 [2024-10-31 22:07:58,865 INFO L175 Difference]: Start difference. First operand has 588 places, 601 transitions, 1316 flow. Second operand 3 states and 1766 transitions. [2024-10-31 22:07:58,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 608 transitions, 1375 flow [2024-10-31 22:07:58,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 608 transitions, 1343 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:58,883 INFO L231 Difference]: Finished difference. Result has 589 places, 602 transitions, 1301 flow [2024-10-31 22:07:58,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1301, PETRI_PLACES=589, PETRI_TRANSITIONS=602} [2024-10-31 22:07:58,887 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, -4 predicate places. [2024-10-31 22:07:58,887 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 602 transitions, 1301 flow [2024-10-31 22:07:58,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 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) [2024-10-31 22:07:58,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:58,890 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:58,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:58,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:07:58,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:58,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1706644014, now seen corresponding path program 1 times [2024-10-31 22:07:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:58,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968507666] [2024-10-31 22:07:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:58,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:01,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968507666] [2024-10-31 22:08:01,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968507666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:01,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:01,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:01,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858138260] [2024-10-31 22:08:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:01,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:01,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:01,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:01,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 605 [2024-10-31 22:08:01,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 602 transitions, 1301 flow. Second operand has 6 states, 6 states have (on average 572.8333333333334) internal successors, (3437), 6 states have internal predecessors, (3437), 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) [2024-10-31 22:08:01,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:01,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 605 [2024-10-31 22:08:01,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:03,599 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][466], [608#true, Black: 610#(= ~top~0 0), 599#true, 15#L1022-4true, 612#true, 180#L1013-2true, Black: 603#true, 355#L959-1true]) [2024-10-31 22:08:03,600 INFO L294 olderBase$Statistics]: this new event has 628 ancestors and is cut-off event [2024-10-31 22:08:03,600 INFO L297 olderBase$Statistics]: existing Event has 520 ancestors and is cut-off event [2024-10-31 22:08:03,601 INFO L297 olderBase$Statistics]: existing Event has 531 ancestors and is cut-off event [2024-10-31 22:08:03,601 INFO L297 olderBase$Statistics]: existing Event has 559 ancestors and is cut-off event [2024-10-31 22:08:03,602 INFO L124 PetriNetUnfolderBase]: 556/4545 cut-off events. [2024-10-31 22:08:03,602 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-10-31 22:08:03,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6120 conditions, 4545 events. 556/4545 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 33510 event pairs, 211 based on Foata normal form. 0/4206 useless extension candidates. Maximal degree in co-relation 5356. Up to 771 conditions per place. [2024-10-31 22:08:03,631 INFO L140 encePairwiseOnDemand]: 594/605 looper letters, 35 selfloop transitions, 22 changer transitions 0/635 dead transitions. [2024-10-31 22:08:03,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 635 transitions, 1489 flow [2024-10-31 22:08:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3484 transitions. [2024-10-31 22:08:03,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597796143250689 [2024-10-31 22:08:03,640 INFO L175 Difference]: Start difference. First operand has 589 places, 602 transitions, 1301 flow. Second operand 6 states and 3484 transitions. [2024-10-31 22:08:03,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 635 transitions, 1489 flow [2024-10-31 22:08:03,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 635 transitions, 1486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:03,759 INFO L231 Difference]: Finished difference. Result has 598 places, 623 transitions, 1448 flow [2024-10-31 22:08:03,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1448, PETRI_PLACES=598, PETRI_TRANSITIONS=623} [2024-10-31 22:08:03,764 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, 5 predicate places. [2024-10-31 22:08:03,764 INFO L471 AbstractCegarLoop]: Abstraction has has 598 places, 623 transitions, 1448 flow [2024-10-31 22:08:03,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 572.8333333333334) internal successors, (3437), 6 states have internal predecessors, (3437), 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) [2024-10-31 22:08:03,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:03,768 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:03,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:08:03,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:08:03,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash -972021896, now seen corresponding path program 1 times [2024-10-31 22:08:03,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:03,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231601428] [2024-10-31 22:08:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:03,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231601428] [2024-10-31 22:08:03,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231601428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:03,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:03,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484209508] [2024-10-31 22:08:03,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:03,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:03,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:04,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 573 out of 605 [2024-10-31 22:08:04,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 623 transitions, 1448 flow. Second operand has 3 states, 3 states have (on average 576.0) internal successors, (1728), 3 states have internal predecessors, (1728), 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) [2024-10-31 22:08:04,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:04,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 573 of 605 [2024-10-31 22:08:04,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:05,615 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][466], [623#true, 599#true, Black: 610#(= ~top~0 0), 15#L1022-4true, 612#true, 180#L1013-2true, Black: 614#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 617#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 219#L998-2true, Black: 615#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 603#true, Black: 616#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|))]) [2024-10-31 22:08:05,616 INFO L294 olderBase$Statistics]: this new event has 608 ancestors and is cut-off event [2024-10-31 22:08:05,616 INFO L297 olderBase$Statistics]: existing Event has 500 ancestors and is cut-off event [2024-10-31 22:08:05,616 INFO L297 olderBase$Statistics]: existing Event has 534 ancestors and is cut-off event [2024-10-31 22:08:05,616 INFO L297 olderBase$Statistics]: existing Event has 500 ancestors and is cut-off event [2024-10-31 22:08:05,652 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][466], [623#true, 599#true, Black: 610#(= ~top~0 0), 15#L1022-4true, 612#true, 180#L1013-2true, Black: 614#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 617#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 498#L993-3true, Black: 615#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 603#true, Black: 616#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|))]) [2024-10-31 22:08:05,653 INFO L294 olderBase$Statistics]: this new event has 614 ancestors and is cut-off event [2024-10-31 22:08:05,653 INFO L297 olderBase$Statistics]: existing Event has 540 ancestors and is cut-off event [2024-10-31 22:08:05,654 INFO L297 olderBase$Statistics]: existing Event has 506 ancestors and is cut-off event [2024-10-31 22:08:05,654 INFO L297 olderBase$Statistics]: existing Event has 506 ancestors and is cut-off event [2024-10-31 22:08:05,679 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L1008-3-->L1013-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][466], [623#true, 599#true, Black: 610#(= ~top~0 0), 612#true, 180#L1013-2true, Black: 614#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 617#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 151#L1023-1true, Black: 615#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 603#true, Black: 616#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|))]) [2024-10-31 22:08:05,680 INFO L294 olderBase$Statistics]: this new event has 618 ancestors and is cut-off event [2024-10-31 22:08:05,680 INFO L297 olderBase$Statistics]: existing Event has 510 ancestors and is cut-off event [2024-10-31 22:08:05,680 INFO L297 olderBase$Statistics]: existing Event has 510 ancestors and is cut-off event [2024-10-31 22:08:05,682 INFO L297 olderBase$Statistics]: existing Event has 544 ancestors and is cut-off event [2024-10-31 22:08:05,701 INFO L124 PetriNetUnfolderBase]: 521/4604 cut-off events. [2024-10-31 22:08:05,701 INFO L125 PetriNetUnfolderBase]: For 383/434 co-relation queries the response was YES. [2024-10-31 22:08:05,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6547 conditions, 4604 events. 521/4604 cut-off events. For 383/434 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 33246 event pairs, 173 based on Foata normal form. 15/4300 useless extension candidates. Maximal degree in co-relation 5823. Up to 786 conditions per place. [2024-10-31 22:08:05,736 INFO L140 encePairwiseOnDemand]: 596/605 looper letters, 32 selfloop transitions, 13 changer transitions 0/637 dead transitions. [2024-10-31 22:08:05,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 637 transitions, 1586 flow [2024-10-31 22:08:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1752 transitions. [2024-10-31 22:08:05,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9652892561983472 [2024-10-31 22:08:05,740 INFO L175 Difference]: Start difference. First operand has 598 places, 623 transitions, 1448 flow. Second operand 3 states and 1752 transitions. [2024-10-31 22:08:05,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 637 transitions, 1586 flow [2024-10-31 22:08:05,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 637 transitions, 1586 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:08:05,756 INFO L231 Difference]: Finished difference. Result has 602 places, 634 transitions, 1564 flow [2024-10-31 22:08:05,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1564, PETRI_PLACES=602, PETRI_TRANSITIONS=634} [2024-10-31 22:08:05,758 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, 9 predicate places. [2024-10-31 22:08:05,759 INFO L471 AbstractCegarLoop]: Abstraction has has 602 places, 634 transitions, 1564 flow [2024-10-31 22:08:05,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.0) internal successors, (1728), 3 states have internal predecessors, (1728), 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) [2024-10-31 22:08:05,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:05,761 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:05,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:08:05,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:08:05,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1405083174, now seen corresponding path program 1 times [2024-10-31 22:08:05,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:05,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141068597] [2024-10-31 22:08:05,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:06,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141068597] [2024-10-31 22:08:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141068597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:06,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698111473] [2024-10-31 22:08:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:06,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:06,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 605 [2024-10-31 22:08:06,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 634 transitions, 1564 flow. Second operand has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 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) [2024-10-31 22:08:06,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:06,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 605 [2024-10-31 22:08:06,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:06,848 INFO L124 PetriNetUnfolderBase]: 33/1098 cut-off events. [2024-10-31 22:08:06,848 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:08:06,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 1098 events. 33/1098 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3057 event pairs, 5 based on Foata normal form. 11/1075 useless extension candidates. Maximal degree in co-relation 700. Up to 65 conditions per place. [2024-10-31 22:08:06,856 INFO L140 encePairwiseOnDemand]: 601/605 looper letters, 7 selfloop transitions, 4 changer transitions 0/581 dead transitions. [2024-10-31 22:08:06,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 581 transitions, 1291 flow [2024-10-31 22:08:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1771 transitions. [2024-10-31 22:08:06,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9757575757575757 [2024-10-31 22:08:06,865 INFO L175 Difference]: Start difference. First operand has 602 places, 634 transitions, 1564 flow. Second operand 3 states and 1771 transitions. [2024-10-31 22:08:06,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 581 transitions, 1291 flow [2024-10-31 22:08:06,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 581 transitions, 1217 flow, removed 23 selfloop flow, removed 14 redundant places. [2024-10-31 22:08:06,883 INFO L231 Difference]: Finished difference. Result has 581 places, 579 transitions, 1196 flow [2024-10-31 22:08:06,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=581, PETRI_TRANSITIONS=579} [2024-10-31 22:08:06,886 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, -12 predicate places. [2024-10-31 22:08:06,887 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 579 transitions, 1196 flow [2024-10-31 22:08:06,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 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) [2024-10-31 22:08:06,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:06,893 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:06,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:08:06,893 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:08:06,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash -112116300, now seen corresponding path program 1 times [2024-10-31 22:08:06,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:06,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492003723] [2024-10-31 22:08:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492003723] [2024-10-31 22:08:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492003723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:07,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499267691] [2024-10-31 22:08:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:07,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:07,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:07,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:07,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 573 out of 605 [2024-10-31 22:08:07,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 579 transitions, 1196 flow. Second operand has 3 states, 3 states have (on average 578.3333333333334) internal successors, (1735), 3 states have internal predecessors, (1735), 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) [2024-10-31 22:08:07,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:07,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 573 of 605 [2024-10-31 22:08:07,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:07,717 INFO L124 PetriNetUnfolderBase]: 52/1112 cut-off events. [2024-10-31 22:08:07,717 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:08:07,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1112 events. 52/1112 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3387 event pairs, 28 based on Foata normal form. 0/1079 useless extension candidates. Maximal degree in co-relation 679. Up to 119 conditions per place. [2024-10-31 22:08:07,722 INFO L140 encePairwiseOnDemand]: 602/605 looper letters, 22 selfloop transitions, 2 changer transitions 0/579 dead transitions. [2024-10-31 22:08:07,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 579 transitions, 1245 flow [2024-10-31 22:08:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1742 transitions. [2024-10-31 22:08:07,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597796143250689 [2024-10-31 22:08:07,727 INFO L175 Difference]: Start difference. First operand has 581 places, 579 transitions, 1196 flow. Second operand 3 states and 1742 transitions. [2024-10-31 22:08:07,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 579 transitions, 1245 flow [2024-10-31 22:08:07,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 579 transitions, 1241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:07,738 INFO L231 Difference]: Finished difference. Result has 581 places, 578 transitions, 1194 flow [2024-10-31 22:08:07,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1194, PETRI_PLACES=581, PETRI_TRANSITIONS=578} [2024-10-31 22:08:07,742 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, -12 predicate places. [2024-10-31 22:08:07,743 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 578 transitions, 1194 flow [2024-10-31 22:08:07,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 578.3333333333334) internal successors, (1735), 3 states have internal predecessors, (1735), 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) [2024-10-31 22:08:07,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:07,745 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:07,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:08:07,746 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-10-31 22:08:07,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1549779853, now seen corresponding path program 1 times [2024-10-31 22:08:07,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:07,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653655040] [2024-10-31 22:08:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:07,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:09,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:09,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653655040] [2024-10-31 22:08:09,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653655040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:09,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:09,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482008029] [2024-10-31 22:08:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:09,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:09,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:09,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:09,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:10,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 573 out of 605 [2024-10-31 22:08:10,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 578 transitions, 1194 flow. Second operand has 6 states, 6 states have (on average 575.8333333333334) internal successors, (3455), 6 states have internal predecessors, (3455), 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) [2024-10-31 22:08:10,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:10,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 573 of 605 [2024-10-31 22:08:10,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:10,476 INFO L124 PetriNetUnfolderBase]: 51/1108 cut-off events. [2024-10-31 22:08:10,477 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-10-31 22:08:10,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 1108 events. 51/1108 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3323 event pairs, 26 based on Foata normal form. 0/1077 useless extension candidates. Maximal degree in co-relation 1209. Up to 105 conditions per place. [2024-10-31 22:08:10,482 INFO L140 encePairwiseOnDemand]: 599/605 looper letters, 0 selfloop transitions, 0 changer transitions 581/581 dead transitions. [2024-10-31 22:08:10,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 581 transitions, 1254 flow [2024-10-31 22:08:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3464 transitions. [2024-10-31 22:08:10,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9542699724517907 [2024-10-31 22:08:10,492 INFO L175 Difference]: Start difference. First operand has 581 places, 578 transitions, 1194 flow. Second operand 6 states and 3464 transitions. [2024-10-31 22:08:10,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 581 transitions, 1254 flow [2024-10-31 22:08:10,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 581 transitions, 1250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:10,502 INFO L231 Difference]: Finished difference. Result has 583 places, 0 transitions, 0 flow [2024-10-31 22:08:10,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=583, PETRI_TRANSITIONS=0} [2024-10-31 22:08:10,504 INFO L277 CegarLoopForPetriNet]: 593 programPoint places, -10 predicate places. [2024-10-31 22:08:10,504 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 0 transitions, 0 flow [2024-10-31 22:08:10,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 575.8333333333334) internal successors, (3455), 6 states have internal predecessors, (3455), 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) [2024-10-31 22:08:10,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-10-31 22:08:10,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 24 remaining) [2024-10-31 22:08:10,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-10-31 22:08:10,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-10-31 22:08:10,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-10-31 22:08:10,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-10-31 22:08:10,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2024-10-31 22:08:10,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-10-31 22:08:10,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-10-31 22:08:10,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-10-31 22:08:10,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-10-31 22:08:10,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-10-31 22:08:10,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-10-31 22:08:10,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-10-31 22:08:10,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-10-31 22:08:10,521 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-10-31 22:08:10,521 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-10-31 22:08:10,521 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-10-31 22:08:10,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-10-31 22:08:10,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-10-31 22:08:10,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-10-31 22:08:10,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-10-31 22:08:10,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-10-31 22:08:10,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-10-31 22:08:10,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:08:10,524 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:10,531 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:08:10,532 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:08:10,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:08:10 BasicIcfg [2024-10-31 22:08:10,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:08:10,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:08:10,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:08:10,547 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:08:10,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:53" (3/4) ... [2024-10-31 22:08:10,549 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:08:10,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-10-31 22:08:10,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-10-31 22:08:10,564 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-31 22:08:10,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:08:10,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 22:08:10,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:08:10,725 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:08:10,726 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:08:10,726 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:08:10,727 INFO L158 Benchmark]: Toolchain (without parser) took 19077.41ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 120.3MB in the beginning and 624.4MB in the end (delta: -504.1MB). Peak memory consumption was 798.2MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,727 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:08:10,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.09ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 82.8MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.93ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 76.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,728 INFO L158 Benchmark]: Boogie Preprocessor took 70.73ms. Allocated memory is still 155.2MB. Free memory was 76.6MB in the beginning and 72.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,729 INFO L158 Benchmark]: RCFGBuilder took 1182.91ms. Allocated memory is still 155.2MB. Free memory was 72.4MB in the beginning and 81.9MB in the end (delta: -9.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,729 INFO L158 Benchmark]: TraceAbstraction took 16610.87ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 81.9MB in the beginning and 633.8MB in the end (delta: -551.9MB). Peak memory consumption was 748.9MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,729 INFO L158 Benchmark]: Witness Printer took 179.69ms. Allocated memory is still 1.5GB. Free memory was 633.8MB in the beginning and 624.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:08:10,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.09ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 82.8MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.93ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 76.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.73ms. Allocated memory is still 155.2MB. Free memory was 76.6MB in the beginning and 72.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1182.91ms. Allocated memory is still 155.2MB. Free memory was 72.4MB in the beginning and 81.9MB in the end (delta: -9.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 16610.87ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 81.9MB in the beginning and 633.8MB in the end (delta: -551.9MB). Peak memory consumption was 748.9MB. Max. memory is 16.1GB. * Witness Printer took 179.69ms. Allocated memory is still 1.5GB. Free memory was 633.8MB in the beginning and 624.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 968]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1008]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 975]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 983]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 749 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 280 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 473 IncrementalHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 39 mSDtfsCounter, 473 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1564occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 3361 NumberOfCodeBlocks, 3361 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 3354 ConstructedInterpolants, 0 QuantifiedInterpolants, 4506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:08:10,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6473534-d695-48fe-8c57-e2a9e1135618/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE