./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:08:48,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:08:48,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:08:48,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:08:48,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:08:48,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:08:48,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:08:48,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:08:48,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:08:48,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:08:48,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:08:48,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:08:48,959 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:08:48,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:08:48,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:08:48,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:48,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:48,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:48,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:48,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:08:48,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:48,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:08:48,971 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:08:48,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:48,972 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:08:48,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:48,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:08:48,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:48,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:48,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:48,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:48,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:48,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:48,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:48,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:08:48,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:48,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:48,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:48,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:48,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:48,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:48,986 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_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-10-31 22:08:49,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:49,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:49,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:49,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:49,372 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:49,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i Unable to find full path for "g++" [2024-10-31 22:08:51,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:52,230 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:52,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-10-31 22:08:52,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/data/a95ed515d/1f090dc8a66b456f90af78646e732e5a/FLAG77f97f01e [2024-10-31 22:08:52,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/data/a95ed515d/1f090dc8a66b456f90af78646e732e5a [2024-10-31 22:08:52,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:52,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:52,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:52,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:52,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:52,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:52" (1/1) ... [2024-10-31 22:08:52,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c86ed52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:52, skipping insertion in model container [2024-10-31 22:08:52,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:52" (1/1) ... [2024-10-31 22:08:52,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:53,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:53,249 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:53,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:53,465 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:53,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53 WrapperNode [2024-10-31 22:08:53,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:53,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:53,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:53,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:53,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,570 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2024-10-31 22:08:53,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:53,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:53,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:53,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:53,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:53,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:53,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:53,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:53,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (1/1) ... [2024-10-31 22:08:53,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:53,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:53,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:08:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:08:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:08:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:08:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:08:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:08:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:08:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:53,729 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:08:53,913 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:53,916 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:54,357 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:08:54,357 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:54,388 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:54,388 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:08:54,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:54 BoogieIcfgContainer [2024-10-31 22:08:54,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:54,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:54,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:54,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:54,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:52" (1/3) ... [2024-10-31 22:08:54,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e5658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:54, skipping insertion in model container [2024-10-31 22:08:54,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:53" (2/3) ... [2024-10-31 22:08:54,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e5658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:54, skipping insertion in model container [2024-10-31 22:08:54,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:54" (3/3) ... [2024-10-31 22:08:54,399 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-10-31 22:08:54,421 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:54,421 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:08:54,421 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:08:54,503 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:08:54,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 181 transitions, 366 flow [2024-10-31 22:08:54,635 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2024-10-31 22:08:54,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:54,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 180 events. 6/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-10-31 22:08:54,644 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 181 transitions, 366 flow [2024-10-31 22:08:54,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 180 transitions, 363 flow [2024-10-31 22:08:54,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:54,669 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@212805ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:54,669 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:08:54,719 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:08:54,720 INFO L124 PetriNetUnfolderBase]: 4/112 cut-off events. [2024-10-31 22:08:54,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:54,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:54,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:54,721 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:08:54,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:54,728 INFO L85 PathProgramCache]: Analyzing trace with hash -211118510, now seen corresponding path program 1 times [2024-10-31 22:08:54,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:54,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614502751] [2024-10-31 22:08:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:55,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:55,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614502751] [2024-10-31 22:08:55,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614502751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:55,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:55,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470552141] [2024-10-31 22:08:55,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:55,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:55,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:55,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-10-31 22:08:55,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:55,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:55,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-10-31 22:08:55,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:55,574 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2024-10-31 22:08:55,574 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:08:55,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 335 events. 14/335 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 6 based on Foata normal form. 11/323 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2024-10-31 22:08:55,581 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2024-10-31 22:08:55,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2024-10-31 22:08:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-10-31 22:08:55,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-10-31 22:08:55,606 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 363 flow. Second operand 3 states and 518 transitions. [2024-10-31 22:08:55,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2024-10-31 22:08:55,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:55,617 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2024-10-31 22:08:55,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2024-10-31 22:08:55,624 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2024-10-31 22:08:55,625 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2024-10-31 22:08:55,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:55,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:55,627 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:55,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:55,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:08:55,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:55,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1977973560, now seen corresponding path program 1 times [2024-10-31 22:08:55,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:55,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173600026] [2024-10-31 22:08:55,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:55,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:55,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:55,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173600026] [2024-10-31 22:08:55,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173600026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470299120] [2024-10-31 22:08:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:55,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:55,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:55,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:55,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:08:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:55,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:08:56,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:08:56,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:56,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470299120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:56,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:56,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-31 22:08:56,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534361584] [2024-10-31 22:08:56,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:56,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:56,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:56,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-10-31 22:08:56,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:56,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:56,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-10-31 22:08:56,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:56,211 INFO L124 PetriNetUnfolderBase]: 29/451 cut-off events. [2024-10-31 22:08:56,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:08:56,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 451 events. 29/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1512 event pairs, 8 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 439. Up to 39 conditions per place. [2024-10-31 22:08:56,216 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-10-31 22:08:56,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2024-10-31 22:08:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:56,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-10-31 22:08:56,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-10-31 22:08:56,219 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2024-10-31 22:08:56,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2024-10-31 22:08:56,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:56,224 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2024-10-31 22:08:56,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2024-10-31 22:08:56,226 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2024-10-31 22:08:56,226 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2024-10-31 22:08:56,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:56,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:56,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:56,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:08:56,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:56,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:08:56,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash 261699259, now seen corresponding path program 1 times [2024-10-31 22:08:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305998180] [2024-10-31 22:08:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:56,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305998180] [2024-10-31 22:08:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305998180] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662651294] [2024-10-31 22:08:56,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:56,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:56,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:56,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:08:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:56,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:08:56,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:56,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:56,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662651294] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:56,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:56,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:08:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334911414] [2024-10-31 22:08:56,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:56,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:08:56,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:56,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:08:56,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:08:56,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-10-31 22:08:56,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:56,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:56,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-10-31 22:08:56,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:57,185 INFO L124 PetriNetUnfolderBase]: 15/395 cut-off events. [2024-10-31 22:08:57,186 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:08:57,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 395 events. 15/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1098 event pairs, 10 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2024-10-31 22:08:57,191 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2024-10-31 22:08:57,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2024-10-31 22:08:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:08:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:08:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2024-10-31 22:08:57,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214241866175568 [2024-10-31 22:08:57,197 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2024-10-31 22:08:57,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2024-10-31 22:08:57,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:57,207 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2024-10-31 22:08:57,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-10-31 22:08:57,208 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2024-10-31 22:08:57,209 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2024-10-31 22:08:57,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:57,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:57,212 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:57,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:08:57,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:57,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:08:57,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:57,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1127065211, now seen corresponding path program 2 times [2024-10-31 22:08:57,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:57,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979612720] [2024-10-31 22:08:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979612720] [2024-10-31 22:08:57,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979612720] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:57,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573582678] [2024-10-31 22:08:57,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:08:57,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:57,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:57,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:57,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:08:57,850 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:08:57,850 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:08:57,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:08:57,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:57,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:08:57,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-31 22:08:57,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:08:57,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-31 22:08:58,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:08:58,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-31 22:08:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:08:58,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:08:58,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573582678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:58,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:08:58,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-31 22:08:58,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951609805] [2024-10-31 22:08:58,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:58,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:08:58,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-10-31 22:08:58,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:58,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:58,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-10-31 22:08:58,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:59,055 INFO L124 PetriNetUnfolderBase]: 355/1812 cut-off events. [2024-10-31 22:08:59,055 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:08:59,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 1812 events. 355/1812 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12665 event pairs, 172 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2024-10-31 22:08:59,066 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 34 selfloop transitions, 38 changer transitions 0/230 dead transitions. [2024-10-31 22:08:59,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 660 flow [2024-10-31 22:08:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-10-31 22:08:59,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9014732965009208 [2024-10-31 22:08:59,070 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 979 transitions. [2024-10-31 22:08:59,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 660 flow [2024-10-31 22:08:59,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 230 transitions, 654 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:59,078 INFO L231 Difference]: Finished difference. Result has 201 places, 222 transitions, 674 flow [2024-10-31 22:08:59,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=201, PETRI_TRANSITIONS=222} [2024-10-31 22:08:59,080 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2024-10-31 22:08:59,080 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 222 transitions, 674 flow [2024-10-31 22:08:59,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:59,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:59,081 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:59,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:08:59,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:59,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:08:59,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash -378395017, now seen corresponding path program 1 times [2024-10-31 22:08:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743942404] [2024-10-31 22:08:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:59,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:59,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:59,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743942404] [2024-10-31 22:08:59,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743942404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:08:59,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221800865] [2024-10-31 22:08:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:59,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:08:59,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:59,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:08:59,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:08:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:59,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:08:59,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:08:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:59,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:08:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:59,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221800865] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:08:59,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:08:59,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:08:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251832653] [2024-10-31 22:08:59,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:08:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:08:59,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:59,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:08:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:08:59,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-10-31 22:08:59,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 222 transitions, 674 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:59,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:59,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-10-31 22:08:59,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:00,410 INFO L124 PetriNetUnfolderBase]: 133/1064 cut-off events. [2024-10-31 22:09:00,411 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-10-31 22:09:00,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1064 events. 133/1064 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5973 event pairs, 28 based on Foata normal form. 4/1012 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2024-10-31 22:09:00,419 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 18 selfloop transitions, 21 changer transitions 0/240 dead transitions. [2024-10-31 22:09:00,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 240 transitions, 840 flow [2024-10-31 22:09:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:09:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-31 22:09:00,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2024-10-31 22:09:00,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173901604840832 [2024-10-31 22:09:00,427 INFO L175 Difference]: Start difference. First operand has 201 places, 222 transitions, 674 flow. Second operand 21 states and 3487 transitions. [2024-10-31 22:09:00,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 240 transitions, 840 flow [2024-10-31 22:09:00,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 240 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:00,439 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 804 flow [2024-10-31 22:09:00,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=804, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2024-10-31 22:09:00,441 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2024-10-31 22:09:00,443 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 804 flow [2024-10-31 22:09:00,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:00,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:00,446 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:00,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:09:00,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:00,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:00,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:00,648 INFO L85 PathProgramCache]: Analyzing trace with hash -271780361, now seen corresponding path program 2 times [2024-10-31 22:09:00,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:00,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41496684] [2024-10-31 22:09:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:00,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:01,168 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:01,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:01,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41496684] [2024-10-31 22:09:01,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41496684] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:01,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793798331] [2024-10-31 22:09:01,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:09:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:01,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:01,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:09:01,288 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:09:01,289 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:09:01,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:09:01,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:01,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:09:01,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-31 22:09:01,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:09:01,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-31 22:09:01,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:09:01,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-31 22:09:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:09:01,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:01,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793798331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:01,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:01,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-31 22:09:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559557744] [2024-10-31 22:09:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:01,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:01,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:09:01,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-10-31 22:09:01,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:01,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:01,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-10-31 22:09:01,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:02,355 INFO L124 PetriNetUnfolderBase]: 451/2077 cut-off events. [2024-10-31 22:09:02,355 INFO L125 PetriNetUnfolderBase]: For 479/531 co-relation queries the response was YES. [2024-10-31 22:09:02,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2077 events. 451/2077 cut-off events. For 479/531 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14627 event pairs, 153 based on Foata normal form. 13/1992 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2024-10-31 22:09:02,370 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 67 selfloop transitions, 30 changer transitions 0/272 dead transitions. [2024-10-31 22:09:02,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1114 flow [2024-10-31 22:09:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:02,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:09:02,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2024-10-31 22:09:02,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867403314917127 [2024-10-31 22:09:02,374 INFO L175 Difference]: Start difference. First operand has 226 places, 235 transitions, 804 flow. Second operand 6 states and 963 transitions. [2024-10-31 22:09:02,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1114 flow [2024-10-31 22:09:02,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1090 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-31 22:09:02,385 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2024-10-31 22:09:02,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2024-10-31 22:09:02,387 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2024-10-31 22:09:02,388 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2024-10-31 22:09:02,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:02,389 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:02,389 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:02,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:02,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:02,593 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:02,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash 631674752, now seen corresponding path program 1 times [2024-10-31 22:09:02,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:02,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922824279] [2024-10-31 22:09:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:02,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:03,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:03,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922824279] [2024-10-31 22:09:03,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922824279] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:03,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989133899] [2024-10-31 22:09:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:03,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:03,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:03,088 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:03,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:09:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:03,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:09:03,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:03,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989133899] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:03,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:09:03,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-31 22:09:03,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330778620] [2024-10-31 22:09:03,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:03,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:09:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:09:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:09:03,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-10-31 22:09:03,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:03,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:03,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-10-31 22:09:03,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:04,373 INFO L124 PetriNetUnfolderBase]: 236/1582 cut-off events. [2024-10-31 22:09:04,374 INFO L125 PetriNetUnfolderBase]: For 548/581 co-relation queries the response was YES. [2024-10-31 22:09:04,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1582 events. 236/1582 cut-off events. For 548/581 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10196 event pairs, 35 based on Foata normal form. 13/1528 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2024-10-31 22:09:04,385 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2024-10-31 22:09:04,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2024-10-31 22:09:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-31 22:09:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-31 22:09:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2024-10-31 22:09:04,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9160220994475138 [2024-10-31 22:09:04,394 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2024-10-31 22:09:04,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2024-10-31 22:09:04,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:04,406 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2024-10-31 22:09:04,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2024-10-31 22:09:04,407 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2024-10-31 22:09:04,408 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2024-10-31 22:09:04,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:04,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:04,410 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:04,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:09:04,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b29a4-32e2-483d-9060-2a065499be99/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:04,611 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:04,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1177218906, now seen corresponding path program 2 times [2024-10-31 22:09:04,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:04,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986124953] [2024-10-31 22:09:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:04,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:09:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986124953] [2024-10-31 22:09:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986124953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:05,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748444494] [2024-10-31 22:09:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:05,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:05,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-10-31 22:09:05,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:05,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:05,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-10-31 22:09:05,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:06,688 INFO L124 PetriNetUnfolderBase]: 1000/3561 cut-off events. [2024-10-31 22:09:06,688 INFO L125 PetriNetUnfolderBase]: For 1857/1926 co-relation queries the response was YES. [2024-10-31 22:09:06,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 3561 events. 1000/3561 cut-off events. For 1857/1926 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26719 event pairs, 304 based on Foata normal form. 18/3379 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2024-10-31 22:09:06,719 INFO L140 encePairwiseOnDemand]: 158/181 looper letters, 100 selfloop transitions, 89 changer transitions 0/361 dead transitions. [2024-10-31 22:09:06,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 361 transitions, 1900 flow [2024-10-31 22:09:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:09:06,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2024-10-31 22:09:06,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848987108655617 [2024-10-31 22:09:06,723 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 961 transitions. [2024-10-31 22:09:06,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 361 transitions, 1900 flow [2024-10-31 22:09:06,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 361 transitions, 1854 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-31 22:09:06,742 INFO L231 Difference]: Finished difference. Result has 255 places, 353 transitions, 1874 flow [2024-10-31 22:09:06,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1874, PETRI_PLACES=255, PETRI_TRANSITIONS=353} [2024-10-31 22:09:06,746 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2024-10-31 22:09:06,747 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 1874 flow [2024-10-31 22:09:06,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:06,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:06,748 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:06,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:09:06,748 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:06,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash -723352546, now seen corresponding path program 1 times [2024-10-31 22:09:06,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:06,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47049355] [2024-10-31 22:09:06,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:06,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:09:07,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:07,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47049355] [2024-10-31 22:09:07,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47049355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:07,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:07,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:07,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139128440] [2024-10-31 22:09:07,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:07,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:07,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:07,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:07,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:07,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-10-31 22:09:07,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 353 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:07,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:07,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-10-31 22:09:07,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:08,993 INFO L124 PetriNetUnfolderBase]: 1203/4090 cut-off events. [2024-10-31 22:09:08,993 INFO L125 PetriNetUnfolderBase]: For 4645/4768 co-relation queries the response was YES. [2024-10-31 22:09:09,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 4090 events. 1203/4090 cut-off events. For 4645/4768 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30853 event pairs, 276 based on Foata normal form. 21/3965 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2024-10-31 22:09:09,036 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 71 changer transitions 0/414 dead transitions. [2024-10-31 22:09:09,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2708 flow [2024-10-31 22:09:09,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:09:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2024-10-31 22:09:09,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8554327808471455 [2024-10-31 22:09:09,040 INFO L175 Difference]: Start difference. First operand has 255 places, 353 transitions, 1874 flow. Second operand 6 states and 929 transitions. [2024-10-31 22:09:09,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2708 flow [2024-10-31 22:09:09,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2612 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:09,081 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2454 flow [2024-10-31 22:09:09,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2454, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2024-10-31 22:09:09,083 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2024-10-31 22:09:09,083 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2454 flow [2024-10-31 22:09:09,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:09,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:09,084 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:09,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:09:09,085 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:09,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1817390323, now seen corresponding path program 1 times [2024-10-31 22:09:09,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:09,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665562987] [2024-10-31 22:09:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:09,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:09:09,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:09,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665562987] [2024-10-31 22:09:09,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665562987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:09,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:09,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:09:09,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690912381] [2024-10-31 22:09:09,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:09,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:09:09,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:09,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:09:09,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:11,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-10-31 22:09:11,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2454 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:11,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:11,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-10-31 22:09:11,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:14,293 INFO L124 PetriNetUnfolderBase]: 2157/8130 cut-off events. [2024-10-31 22:09:14,293 INFO L125 PetriNetUnfolderBase]: For 10431/10670 co-relation queries the response was YES. [2024-10-31 22:09:14,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22215 conditions, 8130 events. 2157/8130 cut-off events. For 10431/10670 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 74184 event pairs, 297 based on Foata normal form. 73/8074 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2024-10-31 22:09:14,395 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 74 selfloop transitions, 15 changer transitions 2/469 dead transitions. [2024-10-31 22:09:14,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 469 transitions, 2794 flow [2024-10-31 22:09:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:09:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:09:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2024-10-31 22:09:14,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882750153468385 [2024-10-31 22:09:14,408 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2454 flow. Second operand 9 states and 1447 transitions. [2024-10-31 22:09:14,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 469 transitions, 2794 flow [2024-10-31 22:09:14,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 469 transitions, 2712 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:14,578 INFO L231 Difference]: Finished difference. Result has 280 places, 421 transitions, 2490 flow [2024-10-31 22:09:14,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=280, PETRI_TRANSITIONS=421} [2024-10-31 22:09:14,583 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2024-10-31 22:09:14,583 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 421 transitions, 2490 flow [2024-10-31 22:09:14,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:14,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:14,588 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:14,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:09:14,589 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:09:14,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:14,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1367447591, now seen corresponding path program 2 times [2024-10-31 22:09:14,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:14,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921280391] [2024-10-31 22:09:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:14,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:09:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921280391] [2024-10-31 22:09:15,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921280391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:15,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:15,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:09:15,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423677844] [2024-10-31 22:09:15,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:15,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:09:15,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:15,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:09:15,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:17,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-10-31 22:09:17,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 421 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:17,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:17,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-10-31 22:09:17,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand