./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:02:49,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:02:49,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:02:49,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:02:49,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:02:49,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:02:49,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:02:49,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:02:49,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:02:49,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:02:49,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:02:49,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:02:49,195 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:02:49,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:02:49,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:02:49,198 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:02:49,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:02:49,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:02:49,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:02:49,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:02:49,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:02:49,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:02:49,203 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:02:49,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:02:49,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:02:49,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:02:49,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:02:49,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:02:49,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:02:49,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:02:49,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:02:49,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:02:49,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:02:49,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:02:49,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:02:49,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:02:49,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:02:49,212 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:02:49,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:02:49,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:02:49,214 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:02:49,214 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_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d [2023-11-06 23:02:49,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:02:49,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:02:49,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:02:49,589 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:02:49,590 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:02:49,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2023-11-06 23:02:53,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:02:53,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:02:53,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2023-11-06 23:02:53,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/data/c0fa574a6/2a6ec0efe4484b8ba8f49c8538e2b7c8/FLAG57ccf8a2e [2023-11-06 23:02:53,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/data/c0fa574a6/2a6ec0efe4484b8ba8f49c8538e2b7c8 [2023-11-06 23:02:53,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:02:53,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:02:53,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:02:53,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:02:53,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:02:53,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:53" (1/1) ... [2023-11-06 23:02:53,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7592c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:53, skipping insertion in model container [2023-11-06 23:02:53,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:53" (1/1) ... [2023-11-06 23:02:54,060 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:02:54,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:02:54,807 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:02:54,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:02:55,006 WARN L672 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:02:55,015 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:02:55,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55 WrapperNode [2023-11-06 23:02:55,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:02:55,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:02:55,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:02:55,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:02:55,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,092 INFO L138 Inliner]: procedures = 273, calls = 44, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 189 [2023-11-06 23:02:55,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:02:55,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:02:55,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:02:55,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:02:55,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:02:55,156 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:02:55,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:02:55,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:02:55,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (1/1) ... [2023-11-06 23:02:55,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:02:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:02:55,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:02:55,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:02:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:02:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:02:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:02:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:02:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:02:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:02:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:02:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:02:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:02:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:02:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:02:55,280 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:02:55,475 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:02:55,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:02:55,942 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:02:55,958 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:02:55,958 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-06 23:02:55,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:55 BoogieIcfgContainer [2023-11-06 23:02:55,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:02:55,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:02:55,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:02:55,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:02:55,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:02:53" (1/3) ... [2023-11-06 23:02:55,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eb17e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:55, skipping insertion in model container [2023-11-06 23:02:55,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:55" (2/3) ... [2023-11-06 23:02:55,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eb17e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:55, skipping insertion in model container [2023-11-06 23:02:55,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:55" (3/3) ... [2023-11-06 23:02:55,998 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2023-11-06 23:02:56,011 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:02:56,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:02:56,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-06 23:02:56,028 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:02:56,139 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 23:02:56,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,375 INFO L124 PetriNetUnfolderBase]: 26/263 cut-off events. [2023-11-06 23:02:56,375 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:02:56,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 263 events. 26/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 951 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place. [2023-11-06 23:02:56,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,408 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:02:56,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,443 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 203 transitions, 413 flow [2023-11-06 23:02:56,548 INFO L124 PetriNetUnfolderBase]: 26/263 cut-off events. [2023-11-06 23:02:56,548 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:02:56,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 263 events. 26/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 951 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place. [2023-11-06 23:02:56,565 INFO L119 LiptonReduction]: Number of co-enabled transitions 12936 [2023-11-06 23:03:02,234 INFO L134 LiptonReduction]: Checked pairs total: 36936 [2023-11-06 23:03:02,234 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-06 23:03:02,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:03:02,282 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7701296, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:03:02,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-06 23:03:02,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:03:02,305 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-06 23:03:02,305 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:02,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:02,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:03:02,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-06 23:03:02,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:02,318 INFO L85 PathProgramCache]: Analyzing trace with hash 725343478, now seen corresponding path program 1 times [2023-11-06 23:03:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526224716] [2023-11-06 23:03:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:02,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:02,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:02,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526224716] [2023-11-06 23:03:02,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526224716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:02,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:02,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:02,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893316372] [2023-11-06 23:03:02,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:02,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:02,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:02,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:02,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:02,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 345 [2023-11-06 23:03:02,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 90 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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) [2023-11-06 23:03:02,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:02,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 345 [2023-11-06 23:03:02,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:03,161 INFO L124 PetriNetUnfolderBase]: 339/926 cut-off events. [2023-11-06 23:03:03,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:03:03,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 926 events. 339/926 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5610 event pairs, 288 based on Foata normal form. 120/903 useless extension candidates. Maximal degree in co-relation 1615. Up to 681 conditions per place. [2023-11-06 23:03:03,173 INFO L140 encePairwiseOnDemand]: 325/345 looper letters, 66 selfloop transitions, 2 changer transitions 2/99 dead transitions. [2023-11-06 23:03:03,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 345 flow [2023-11-06 23:03:03,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:03:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 628 transitions. [2023-11-06 23:03:03,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6067632850241546 [2023-11-06 23:03:03,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 628 transitions. [2023-11-06 23:03:03,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 628 transitions. [2023-11-06 23:03:03,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:03,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 628 transitions. [2023-11-06 23:03:03,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2023-11-06 23:03:03,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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) [2023-11-06 23:03:03,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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) [2023-11-06 23:03:03,223 INFO L175 Difference]: Start difference. First operand has 75 places, 90 transitions, 187 flow. Second operand 3 states and 628 transitions. [2023-11-06 23:03:03,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 345 flow [2023-11-06 23:03:03,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:03,234 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 152 flow [2023-11-06 23:03:03,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2023-11-06 23:03:03,241 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2023-11-06 23:03:03,241 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 152 flow [2023-11-06 23:03:03,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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) [2023-11-06 23:03:03,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:03,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:03:03,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:03:03,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-06 23:03:03,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:03,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1001545095, now seen corresponding path program 1 times [2023-11-06 23:03:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:03,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189056099] [2023-11-06 23:03:03,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:03,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189056099] [2023-11-06 23:03:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189056099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:03,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:03,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:03,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983555759] [2023-11-06 23:03:03,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:03,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:03,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:03,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:03,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:03,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 345 [2023-11-06 23:03:03,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 70 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2023-11-06 23:03:03,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:03,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 345 [2023-11-06 23:03:03,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:03,775 INFO L124 PetriNetUnfolderBase]: 636/1757 cut-off events. [2023-11-06 23:03:03,776 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-11-06 23:03:03,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3177 conditions, 1757 events. 636/1757 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 12739 event pairs, 23 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 3162. Up to 753 conditions per place. [2023-11-06 23:03:03,791 INFO L140 encePairwiseOnDemand]: 341/345 looper letters, 82 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2023-11-06 23:03:03,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 110 transitions, 407 flow [2023-11-06 23:03:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:03:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2023-11-06 23:03:03,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990338164251208 [2023-11-06 23:03:03,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 620 transitions. [2023-11-06 23:03:03,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 620 transitions. [2023-11-06 23:03:03,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:03,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 620 transitions. [2023-11-06 23:03:03,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 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) [2023-11-06 23:03:03,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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) [2023-11-06 23:03:03,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 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) [2023-11-06 23:03:03,808 INFO L175 Difference]: Start difference. First operand has 76 places, 70 transitions, 152 flow. Second operand 3 states and 620 transitions. [2023-11-06 23:03:03,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 110 transitions, 407 flow [2023-11-06 23:03:03,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 110 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:03:03,819 INFO L231 Difference]: Finished difference. Result has 77 places, 72 transitions, 170 flow [2023-11-06 23:03:03,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=72} [2023-11-06 23:03:03,821 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 2 predicate places. [2023-11-06 23:03:03,822 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 72 transitions, 170 flow [2023-11-06 23:03:03,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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) [2023-11-06 23:03:03,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:03,824 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 23:03:03,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:03:03,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-06 23:03:03,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1001572623, now seen corresponding path program 1 times [2023-11-06 23:03:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:03,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679175713] [2023-11-06 23:03:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:03:03,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:03:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:03:04,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:03:04,005 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:03:04,008 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-11-06 23:03:04,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-11-06 23:03:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-11-06 23:03:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-11-06 23:03:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-11-06 23:03:04,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-11-06 23:03:04,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-11-06 23:03:04,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-11-06 23:03:04,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-11-06 23:03:04,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-11-06 23:03:04,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-11-06 23:03:04,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-11-06 23:03:04,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-11-06 23:03:04,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-11-06 23:03:04,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-11-06 23:03:04,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-11-06 23:03:04,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-11-06 23:03:04,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-11-06 23:03:04,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-11-06 23:03:04,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-11-06 23:03:04,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-11-06 23:03:04,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-11-06 23:03:04,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:03:04,025 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 23:03:04,029 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:03:04,030 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 23:03:04,114 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 23:03:04,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,247 INFO L124 PetriNetUnfolderBase]: 48/455 cut-off events. [2023-11-06 23:03:04,247 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 23:03:04,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 455 events. 48/455 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2031 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 284. Up to 8 conditions per place. [2023-11-06 23:03:04,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,265 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:03:04,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,267 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 274 places, 303 transitions, 622 flow [2023-11-06 23:03:04,372 INFO L124 PetriNetUnfolderBase]: 48/455 cut-off events. [2023-11-06 23:03:04,373 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 23:03:04,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 455 events. 48/455 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2031 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 284. Up to 8 conditions per place. [2023-11-06 23:03:04,422 INFO L119 LiptonReduction]: Number of co-enabled transitions 47236 [2023-11-06 23:03:10,529 INFO L134 LiptonReduction]: Checked pairs total: 182217 [2023-11-06 23:03:10,530 INFO L136 LiptonReduction]: Total number of compositions: 187 [2023-11-06 23:03:10,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:03:10,534 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7701296, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:03:10,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-06 23:03:10,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:03:10,538 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-06 23:03:10,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:10,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:10,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:03:10,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-06 23:03:10,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:10,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1288216379, now seen corresponding path program 1 times [2023-11-06 23:03:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:10,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374100565] [2023-11-06 23:03:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:10,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:10,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:10,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374100565] [2023-11-06 23:03:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374100565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306471212] [2023-11-06 23:03:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:10,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:10,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 490 [2023-11-06 23:03:10,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2023-11-06 23:03:10,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:10,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 490 [2023-11-06 23:03:10,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:15,548 INFO L124 PetriNetUnfolderBase]: 14108/29115 cut-off events. [2023-11-06 23:03:15,549 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-06 23:03:15,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50854 conditions, 29115 events. 14108/29115 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 869. Compared 290910 event pairs, 13080 based on Foata normal form. 3950/29056 useless extension candidates. Maximal degree in co-relation 22396. Up to 21596 conditions per place. [2023-11-06 23:03:15,851 INFO L140 encePairwiseOnDemand]: 458/490 looper letters, 86 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2023-11-06 23:03:15,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 156 transitions, 504 flow [2023-11-06 23:03:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:03:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 916 transitions. [2023-11-06 23:03:15,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6231292517006802 [2023-11-06 23:03:15,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 916 transitions. [2023-11-06 23:03:15,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 916 transitions. [2023-11-06 23:03:15,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:15,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 916 transitions. [2023-11-06 23:03:15,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2023-11-06 23:03:15,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:15,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:15,870 INFO L175 Difference]: Start difference. First operand has 135 places, 162 transitions, 340 flow. Second operand 3 states and 916 transitions. [2023-11-06 23:03:15,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 156 transitions, 504 flow [2023-11-06 23:03:15,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 156 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:15,883 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 292 flow [2023-11-06 23:03:15,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2023-11-06 23:03:15,888 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 1 predicate places. [2023-11-06 23:03:15,888 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 292 flow [2023-11-06 23:03:15,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2023-11-06 23:03:15,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:15,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:03:15,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:03:15,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-06 23:03:15,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:15,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1260656358, now seen corresponding path program 1 times [2023-11-06 23:03:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:15,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354838781] [2023-11-06 23:03:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:15,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:15,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:15,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354838781] [2023-11-06 23:03:15,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354838781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:15,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:15,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:15,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54283989] [2023-11-06 23:03:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:15,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:15,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:15,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:15,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:15,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 490 [2023-11-06 23:03:15,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2023-11-06 23:03:15,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:15,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 490 [2023-11-06 23:03:15,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:22,268 INFO L124 PetriNetUnfolderBase]: 29767/59516 cut-off events. [2023-11-06 23:03:22,270 INFO L125 PetriNetUnfolderBase]: For 1381/1381 co-relation queries the response was YES. [2023-11-06 23:03:22,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106841 conditions, 59516 events. 29767/59516 cut-off events. For 1381/1381 co-relation queries the response was YES. Maximal size of possible extension queue 1666. Compared 636739 event pairs, 8041 based on Foata normal form. 0/52209 useless extension candidates. Maximal degree in co-relation 106654. Up to 27412 conditions per place. [2023-11-06 23:03:22,689 INFO L140 encePairwiseOnDemand]: 483/490 looper letters, 133 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2023-11-06 23:03:22,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 200 transitions, 720 flow [2023-11-06 23:03:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:03:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-11-06 23:03:22,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6265306122448979 [2023-11-06 23:03:22,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-11-06 23:03:22,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-11-06 23:03:22,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:22,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-11-06 23:03:22,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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) [2023-11-06 23:03:22,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:22,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:22,707 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 292 flow. Second operand 3 states and 921 transitions. [2023-11-06 23:03:22,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 200 transitions, 720 flow [2023-11-06 23:03:22,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 200 transitions, 717 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:03:22,731 INFO L231 Difference]: Finished difference. Result has 139 places, 138 transitions, 334 flow [2023-11-06 23:03:22,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2023-11-06 23:03:22,734 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 4 predicate places. [2023-11-06 23:03:22,734 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 334 flow [2023-11-06 23:03:22,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2023-11-06 23:03:22,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:22,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:22,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:03:22,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-06 23:03:22,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash -509000065, now seen corresponding path program 1 times [2023-11-06 23:03:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:22,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404230706] [2023-11-06 23:03:22,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404230706] [2023-11-06 23:03:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404230706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:03:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072695150] [2023-11-06 23:03:22,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:22,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:03:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:03:22,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:03:22,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:03:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:22,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:03:22,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:03:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 23:03:23,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:03:23,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072695150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:23,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:03:23,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-11-06 23:03:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111046399] [2023-11-06 23:03:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:23,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:03:23,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 490 [2023-11-06 23:03:23,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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) [2023-11-06 23:03:23,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:23,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 490 [2023-11-06 23:03:23,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:30,022 INFO L124 PetriNetUnfolderBase]: 30603/61806 cut-off events. [2023-11-06 23:03:30,022 INFO L125 PetriNetUnfolderBase]: For 5238/5238 co-relation queries the response was YES. [2023-11-06 23:03:30,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113616 conditions, 61806 events. 30603/61806 cut-off events. For 5238/5238 co-relation queries the response was YES. Maximal size of possible extension queue 1782. Compared 667976 event pairs, 24773 based on Foata normal form. 0/53211 useless extension candidates. Maximal degree in co-relation 38630. Up to 44374 conditions per place. [2023-11-06 23:03:30,380 INFO L140 encePairwiseOnDemand]: 485/490 looper letters, 113 selfloop transitions, 7 changer transitions 0/187 dead transitions. [2023-11-06 23:03:30,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 187 transitions, 684 flow [2023-11-06 23:03:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:03:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 892 transitions. [2023-11-06 23:03:30,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6068027210884354 [2023-11-06 23:03:30,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 892 transitions. [2023-11-06 23:03:30,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 892 transitions. [2023-11-06 23:03:30,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:30,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 892 transitions. [2023-11-06 23:03:30,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2023-11-06 23:03:30,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:30,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 490.0) internal successors, (1960), 4 states have internal predecessors, (1960), 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) [2023-11-06 23:03:30,399 INFO L175 Difference]: Start difference. First operand has 139 places, 138 transitions, 334 flow. Second operand 3 states and 892 transitions. [2023-11-06 23:03:30,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 187 transitions, 684 flow [2023-11-06 23:03:30,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 187 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:03:30,446 INFO L231 Difference]: Finished difference. Result has 140 places, 143 transitions, 375 flow [2023-11-06 23:03:30,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=490, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=140, PETRI_TRANSITIONS=143} [2023-11-06 23:03:30,451 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, 5 predicate places. [2023-11-06 23:03:30,453 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 143 transitions, 375 flow [2023-11-06 23:03:30,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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) [2023-11-06 23:03:30,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:30,455 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 23:03:30,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:03:30,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f02aba-c917-4c0e-bbda-aabae5329b12/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 23:03:30,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-06 23:03:30,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:30,664 INFO L85 PathProgramCache]: Analyzing trace with hash -132114524, now seen corresponding path program 1 times [2023-11-06 23:03:30,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:30,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639685952] [2023-11-06 23:03:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:30,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:03:30,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:03:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:03:30,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:03:30,735 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:03:30,736 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-11-06 23:03:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-11-06 23:03:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-11-06 23:03:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-11-06 23:03:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-11-06 23:03:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-11-06 23:03:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-11-06 23:03:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-11-06 23:03:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-11-06 23:03:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-11-06 23:03:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-11-06 23:03:30,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-11-06 23:03:30,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-11-06 23:03:30,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-11-06 23:03:30,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-11-06 23:03:30,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-11-06 23:03:30,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-11-06 23:03:30,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-11-06 23:03:30,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-11-06 23:03:30,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2023-11-06 23:03:30,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2023-11-06 23:03:30,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-11-06 23:03:30,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-11-06 23:03:30,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-11-06 23:03:30,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-11-06 23:03:30,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-11-06 23:03:30,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-11-06 23:03:30,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-11-06 23:03:30,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-11-06 23:03:30,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-11-06 23:03:30,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-11-06 23:03:30,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:03:30,746 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 23:03:30,747 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:03:30,747 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-06 23:03:30,802 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 23:03:30,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:30,983 INFO L124 PetriNetUnfolderBase]: 75/694 cut-off events. [2023-11-06 23:03:30,983 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 23:03:30,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 694 events. 75/694 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3374 event pairs, 1 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 463. Up to 16 conditions per place. [2023-11-06 23:03:30,995 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:31,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:31,008 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:03:31,008 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:31,008 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:31,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 403 transitions, 833 flow [2023-11-06 23:03:31,183 INFO L124 PetriNetUnfolderBase]: 75/694 cut-off events. [2023-11-06 23:03:31,183 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 23:03:31,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 694 events. 75/694 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3374 event pairs, 1 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 463. Up to 16 conditions per place. [2023-11-06 23:03:31,251 INFO L119 LiptonReduction]: Number of co-enabled transitions 100548 [2023-11-06 23:03:37,526 INFO L134 LiptonReduction]: Checked pairs total: 465231 [2023-11-06 23:03:37,527 INFO L136 LiptonReduction]: Total number of compositions: 230 [2023-11-06 23:03:37,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:03:37,530 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7701296, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:03:37,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-06 23:03:37,533 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:03:37,534 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-06 23:03:37,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:37,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:37,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:03:37,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 23:03:37,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1987554959, now seen corresponding path program 1 times [2023-11-06 23:03:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:37,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280758517] [2023-11-06 23:03:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:37,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:37,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:37,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280758517] [2023-11-06 23:03:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280758517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:37,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863635213] [2023-11-06 23:03:37,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:37,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:37,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 633 [2023-11-06 23:03:37,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 226 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 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) [2023-11-06 23:03:37,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:37,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 633 [2023-11-06 23:03:37,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand