./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:15,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:15,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:24:15,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:15,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:15,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:15,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:15,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:15,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:15,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:15,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:15,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:15,724 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:15,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:15,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:24:15,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:24:15,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:15,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:24:15,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:15,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:24:15,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:15,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:24:15,730 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:24:15,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:24:15,730 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:24:15,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:24:15,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:15,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:15,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:15,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:15,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:15,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:15,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:15,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:24:15,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:15,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:15,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:15,736 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:24:15,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:15,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:15,736 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:15,737 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_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2023-11-12 02:24:16,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:16,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:16,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:16,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:16,076 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:16,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2023-11-12 02:24:19,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:24:19,473 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:24:19,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2023-11-12 02:24:19,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/data/68bcb48e6/3834fcc8c9c142108398eaedeaf73080/FLAG711d67942 [2023-11-12 02:24:19,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/data/68bcb48e6/3834fcc8c9c142108398eaedeaf73080 [2023-11-12 02:24:19,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:24:19,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:24:19,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:19,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:24:19,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:24:19,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:19" (1/1) ... [2023-11-12 02:24:19,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf42f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:19, skipping insertion in model container [2023-11-12 02:24:19,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:19" (1/1) ... [2023-11-12 02:24:19,604 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:24:20,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:20,206 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:24:20,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:20,310 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:24:20,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20 WrapperNode [2023-11-12 02:24:20,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:20,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:20,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:24:20,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:24:20,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,371 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-11-12 02:24:20,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:20,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:24:20,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:24:20,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:24:20,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:24:20,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:24:20,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:24:20,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:24:20,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (1/1) ... [2023-11-12 02:24:20,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:20,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:20,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:24:20,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:24:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:24:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:24:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:24:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:24:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:24:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:24:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:24:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:24:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:24:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:24:20,508 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:24:20,646 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:24:20,647 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:24:20,892 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:24:20,900 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:24:20,901 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:24:20,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:20 BoogieIcfgContainer [2023-11-12 02:24:20,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:24:20,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:24:20,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:24:20,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:24:20,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:24:19" (1/3) ... [2023-11-12 02:24:20,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdf3c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:20, skipping insertion in model container [2023-11-12 02:24:20,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:20" (2/3) ... [2023-11-12 02:24:20,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdf3c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:20, skipping insertion in model container [2023-11-12 02:24:20,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:20" (3/3) ... [2023-11-12 02:24:20,913 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2023-11-12 02:24:20,922 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:24:20,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:24:20,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:24:20,934 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:24:21,024 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:24:21,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 214 flow [2023-11-12 02:24:21,123 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2023-11-12 02:24:21,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:21,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-11-12 02:24:21,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 214 flow [2023-11-12 02:24:21,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 104 transitions, 211 flow [2023-11-12 02:24:21,138 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:24:21,149 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 104 transitions, 211 flow [2023-11-12 02:24:21,152 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 104 transitions, 211 flow [2023-11-12 02:24:21,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 104 transitions, 211 flow [2023-11-12 02:24:21,189 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2023-11-12 02:24:21,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:21,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-11-12 02:24:21,199 INFO L119 LiptonReduction]: Number of co-enabled transitions 2460 [2023-11-12 02:24:23,247 INFO L134 LiptonReduction]: Checked pairs total: 9208 [2023-11-12 02:24:23,247 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-11-12 02:24:23,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:24:23,271 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@1e3db0ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:24:23,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-12 02:24:23,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:24:23,277 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-11-12 02:24:23,278 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:23,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:23,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:23,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:23,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1189479373, now seen corresponding path program 1 times [2023-11-12 02:24:23,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:23,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287724154] [2023-11-12 02:24:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:23,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:23,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:23,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287724154] [2023-11-12 02:24:23,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287724154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:23,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:23,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134988675] [2023-11-12 02:24:23,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:23,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:23,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:23,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 181 [2023-11-12 02:24:23,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:23,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:23,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 181 [2023-11-12 02:24:23,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:23,787 INFO L124 PetriNetUnfolderBase]: 37/165 cut-off events. [2023-11-12 02:24:23,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:23,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-11-12 02:24:23,794 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-11-12 02:24:23,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-11-12 02:24:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:24:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:24:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2023-11-12 02:24:23,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5580110497237569 [2023-11-12 02:24:23,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2023-11-12 02:24:23,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2023-11-12 02:24:23,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:23,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2023-11-12 02:24:23,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:23,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:23,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:23,839 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 303 transitions. [2023-11-12 02:24:23,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-11-12 02:24:23,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:24:23,844 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-11-12 02:24:23,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-11-12 02:24:23,850 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-11-12 02:24:23,850 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-11-12 02:24:23,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:23,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:23,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:23,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:24:23,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:23,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash 534390817, now seen corresponding path program 1 times [2023-11-12 02:24:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:23,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654985758] [2023-11-12 02:24:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:23,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:23,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654985758] [2023-11-12 02:24:23,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654985758] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:23,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118312562] [2023-11-12 02:24:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:23,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:23,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:23,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:24,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:24:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:24,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:24:24,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:24,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118312562] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:24,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-12 02:24:24,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841720229] [2023-11-12 02:24:24,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:24,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:24:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:24:24,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:24:24,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 181 [2023-11-12 02:24:24,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:24,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:24,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 181 [2023-11-12 02:24:24,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:24,353 INFO L124 PetriNetUnfolderBase]: 37/168 cut-off events. [2023-11-12 02:24:24,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:24,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-11-12 02:24:24,356 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-11-12 02:24:24,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-11-12 02:24:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 587 transitions. [2023-11-12 02:24:24,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5405156537753223 [2023-11-12 02:24:24,360 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 587 transitions. [2023-11-12 02:24:24,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 587 transitions. [2023-11-12 02:24:24,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:24,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 587 transitions. [2023-11-12 02:24:24,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:24,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:24,370 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:24,371 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 587 transitions. [2023-11-12 02:24:24,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-11-12 02:24:24,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-12 02:24:24,373 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-11-12 02:24:24,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-11-12 02:24:24,374 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-11-12 02:24:24,375 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-11-12 02:24:24,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:24,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:24,376 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:24,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:24,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:24,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:24,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:24,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2133116178, now seen corresponding path program 2 times [2023-11-12 02:24:24,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:24,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470224118] [2023-11-12 02:24:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:24,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:24:25,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470224118] [2023-11-12 02:24:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470224118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:25,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:25,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741463703] [2023-11-12 02:24:25,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:25,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:25,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:25,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:25,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-11-12 02:24:25,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:25,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:25,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-11-12 02:24:25,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:25,456 INFO L124 PetriNetUnfolderBase]: 162/398 cut-off events. [2023-11-12 02:24:25,456 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:24:25,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 398 events. 162/398 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1693 event pairs, 74 based on Foata normal form. 0/392 useless extension candidates. Maximal degree in co-relation 752. Up to 265 conditions per place. [2023-11-12 02:24:25,465 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 52 selfloop transitions, 22 changer transitions 0/82 dead transitions. [2023-11-12 02:24:25,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 350 flow [2023-11-12 02:24:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:25,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 581 transitions. [2023-11-12 02:24:25,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5349907918968693 [2023-11-12 02:24:25,469 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 581 transitions. [2023-11-12 02:24:25,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 581 transitions. [2023-11-12 02:24:25,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:25,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 581 transitions. [2023-11-12 02:24:25,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:25,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:25,476 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:25,477 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 581 transitions. [2023-11-12 02:24:25,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 350 flow [2023-11-12 02:24:25,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 82 transitions, 336 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-12 02:24:25,482 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 254 flow [2023-11-12 02:24:25,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2023-11-12 02:24:25,484 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-11-12 02:24:25,484 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 254 flow [2023-11-12 02:24:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:25,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:25,485 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:25,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:24:25,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:25,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:25,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1864450163, now seen corresponding path program 1 times [2023-11-12 02:24:25,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:25,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022024797] [2023-11-12 02:24:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:25,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:24:25,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022024797] [2023-11-12 02:24:25,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022024797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:25,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:25,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:25,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151644993] [2023-11-12 02:24:25,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:25,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:25,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:25,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:25,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:26,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 181 [2023-11-12 02:24:26,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:26,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 181 [2023-11-12 02:24:26,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:26,332 INFO L124 PetriNetUnfolderBase]: 190/476 cut-off events. [2023-11-12 02:24:26,332 INFO L125 PetriNetUnfolderBase]: For 139/142 co-relation queries the response was YES. [2023-11-12 02:24:26,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 476 events. 190/476 cut-off events. For 139/142 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2235 event pairs, 76 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 1082. Up to 312 conditions per place. [2023-11-12 02:24:26,337 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 63 selfloop transitions, 26 changer transitions 0/102 dead transitions. [2023-11-12 02:24:26,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 102 transitions, 532 flow [2023-11-12 02:24:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2023-11-12 02:24:26,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5165745856353591 [2023-11-12 02:24:26,341 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2023-11-12 02:24:26,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2023-11-12 02:24:26,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:26,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2023-11-12 02:24:26,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,348 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 254 flow. Second operand 6 states and 561 transitions. [2023-11-12 02:24:26,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 102 transitions, 532 flow [2023-11-12 02:24:26,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 102 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:26,354 INFO L231 Difference]: Finished difference. Result has 67 places, 82 transitions, 438 flow [2023-11-12 02:24:26,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=67, PETRI_TRANSITIONS=82} [2023-11-12 02:24:26,355 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 28 predicate places. [2023-11-12 02:24:26,356 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 82 transitions, 438 flow [2023-11-12 02:24:26,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:26,357 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:26,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:24:26,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:26,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:26,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1766427568, now seen corresponding path program 1 times [2023-11-12 02:24:26,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:26,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139834827] [2023-11-12 02:24:26,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:26,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:26,469 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:26,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:26,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139834827] [2023-11-12 02:24:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139834827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024221176] [2023-11-12 02:24:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:26,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:26,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:24:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:26,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:24:26,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:26,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:26,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024221176] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:26,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:26,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-12 02:24:26,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542322062] [2023-11-12 02:24:26,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:26,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:24:26,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:24:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:24:26,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 181 [2023-11-12 02:24:26,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 82 transitions, 438 flow. Second operand has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:26,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 181 [2023-11-12 02:24:26,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:26,850 INFO L124 PetriNetUnfolderBase]: 121/375 cut-off events. [2023-11-12 02:24:26,851 INFO L125 PetriNetUnfolderBase]: For 296/303 co-relation queries the response was YES. [2023-11-12 02:24:26,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 375 events. 121/375 cut-off events. For 296/303 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1831 event pairs, 43 based on Foata normal form. 6/374 useless extension candidates. Maximal degree in co-relation 933. Up to 154 conditions per place. [2023-11-12 02:24:26,855 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 26 selfloop transitions, 11 changer transitions 0/88 dead transitions. [2023-11-12 02:24:26,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 548 flow [2023-11-12 02:24:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:24:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:24:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1160 transitions. [2023-11-12 02:24:26,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340699815837937 [2023-11-12 02:24:26,862 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1160 transitions. [2023-11-12 02:24:26,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1160 transitions. [2023-11-12 02:24:26,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:26,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1160 transitions. [2023-11-12 02:24:26,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.66666666666667) internal successors, (1160), 12 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,875 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,875 INFO L175 Difference]: Start difference. First operand has 67 places, 82 transitions, 438 flow. Second operand 12 states and 1160 transitions. [2023-11-12 02:24:26,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 548 flow [2023-11-12 02:24:26,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:26,883 INFO L231 Difference]: Finished difference. Result has 84 places, 88 transitions, 522 flow [2023-11-12 02:24:26,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=522, PETRI_PLACES=84, PETRI_TRANSITIONS=88} [2023-11-12 02:24:26,884 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 45 predicate places. [2023-11-12 02:24:26,884 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 88 transitions, 522 flow [2023-11-12 02:24:26,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:26,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:26,885 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:26,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:27,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:27,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:27,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:27,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1504144912, now seen corresponding path program 2 times [2023-11-12 02:24:27,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:27,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500406120] [2023-11-12 02:24:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:27,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:24:27,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:27,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500406120] [2023-11-12 02:24:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500406120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:27,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:27,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869215919] [2023-11-12 02:24:27,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:27,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:27,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:27,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:27,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:27,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 181 [2023-11-12 02:24:27,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 88 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:27,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:27,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 181 [2023-11-12 02:24:27,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:27,972 INFO L124 PetriNetUnfolderBase]: 308/716 cut-off events. [2023-11-12 02:24:27,972 INFO L125 PetriNetUnfolderBase]: For 565/571 co-relation queries the response was YES. [2023-11-12 02:24:27,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 716 events. 308/716 cut-off events. For 565/571 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3389 event pairs, 101 based on Foata normal form. 0/699 useless extension candidates. Maximal degree in co-relation 2099. Up to 551 conditions per place. [2023-11-12 02:24:27,979 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 91 selfloop transitions, 53 changer transitions 8/156 dead transitions. [2023-11-12 02:24:27,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 156 transitions, 1114 flow [2023-11-12 02:24:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-11-12 02:24:27,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5193370165745856 [2023-11-12 02:24:27,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-11-12 02:24:27,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-11-12 02:24:27,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:27,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-11-12 02:24:27,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:27,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:27,989 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:27,989 INFO L175 Difference]: Start difference. First operand has 84 places, 88 transitions, 522 flow. Second operand 6 states and 564 transitions. [2023-11-12 02:24:27,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 156 transitions, 1114 flow [2023-11-12 02:24:27,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 156 transitions, 1066 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-12 02:24:27,998 INFO L231 Difference]: Finished difference. Result has 89 places, 135 transitions, 956 flow [2023-11-12 02:24:27,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=956, PETRI_PLACES=89, PETRI_TRANSITIONS=135} [2023-11-12 02:24:27,999 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 50 predicate places. [2023-11-12 02:24:28,000 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 135 transitions, 956 flow [2023-11-12 02:24:28,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:28,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:28,000 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:28,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:24:28,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:28,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1290230352, now seen corresponding path program 1 times [2023-11-12 02:24:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:28,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693645471] [2023-11-12 02:24:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:28,409 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:24:28,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:28,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693645471] [2023-11-12 02:24:28,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693645471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:28,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:28,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:28,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88916586] [2023-11-12 02:24:28,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:28,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:28,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-11-12 02:24:28,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 135 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:28,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:28,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-11-12 02:24:28,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:28,955 INFO L124 PetriNetUnfolderBase]: 357/823 cut-off events. [2023-11-12 02:24:28,955 INFO L125 PetriNetUnfolderBase]: For 1193/1204 co-relation queries the response was YES. [2023-11-12 02:24:28,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3044 conditions, 823 events. 357/823 cut-off events. For 1193/1204 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4095 event pairs, 96 based on Foata normal form. 0/799 useless extension candidates. Maximal degree in co-relation 2979. Up to 650 conditions per place. [2023-11-12 02:24:28,964 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 124 selfloop transitions, 57 changer transitions 18/205 dead transitions. [2023-11-12 02:24:28,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 205 transitions, 1728 flow [2023-11-12 02:24:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 544 transitions. [2023-11-12 02:24:28,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5009208103130756 [2023-11-12 02:24:28,968 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 544 transitions. [2023-11-12 02:24:28,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 544 transitions. [2023-11-12 02:24:28,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:28,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 544 transitions. [2023-11-12 02:24:28,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:28,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:28,975 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:28,975 INFO L175 Difference]: Start difference. First operand has 89 places, 135 transitions, 956 flow. Second operand 6 states and 544 transitions. [2023-11-12 02:24:28,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 205 transitions, 1728 flow [2023-11-12 02:24:28,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 205 transitions, 1664 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:29,001 INFO L231 Difference]: Finished difference. Result has 98 places, 175 transitions, 1347 flow [2023-11-12 02:24:29,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1347, PETRI_PLACES=98, PETRI_TRANSITIONS=175} [2023-11-12 02:24:29,002 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 59 predicate places. [2023-11-12 02:24:29,002 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 175 transitions, 1347 flow [2023-11-12 02:24:29,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:29,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:29,003 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:29,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:24:29,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:24:29,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash 274780314, now seen corresponding path program 1 times [2023-11-12 02:24:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:29,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057677082] [2023-11-12 02:24:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:29,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:37,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:37,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057677082] [2023-11-12 02:24:37,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057677082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:37,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292709951] [2023-11-12 02:24:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:37,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:37,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:37,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:37,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128ecc99-6d61-4aa1-a062-2500bd4868f1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:24:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:37,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-12 02:24:37,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:38,230 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-12 02:24:38,300 INFO L322 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-12 02:24:38,300 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2023-11-12 02:24:38,409 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-12 02:24:38,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,496 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2023-11-12 02:24:38,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,600 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2023-11-12 02:24:38,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,725 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-11-12 02:24:38,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:38,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2023-11-12 02:24:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,015 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 78 [2023-11-12 02:24:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,259 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2023-11-12 02:24:39,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:39,479 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:24:39,480 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 105 [2023-11-12 02:24:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:24:45,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:51,468 INFO L322 Elim1Store]: treesize reduction 41, result has 46.1 percent of original size [2023-11-12 02:24:51,469 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1215 treesize of output 851 [2023-11-12 02:24:51,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:51,482 INFO L351 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 66 [2023-11-12 02:24:51,485 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-11-12 02:24:51,491 INFO L322 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-11-12 02:24:51,492 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 30 [2023-11-12 02:24:51,792 INFO L322 Elim1Store]: treesize reduction 41, result has 46.1 percent of original size [2023-11-12 02:24:51,792 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2174 treesize of output 1422 [2023-11-12 02:24:51,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:51,806 INFO L351 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 65 [2023-11-12 02:24:51,820 INFO L322 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-11-12 02:24:51,820 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 174 treesize of output 158 [2023-11-12 02:24:51,835 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-11-12 02:24:51,904 INFO L322 Elim1Store]: treesize reduction 41, result has 46.1 percent of original size [2023-11-12 02:24:51,904 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2573 treesize of output 1695 [2023-11-12 02:24:51,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:51,918 INFO L351 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 66 [2023-11-12 02:24:51,923 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-11-12 02:24:51,937 INFO L322 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-11-12 02:24:51,938 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 30 [2023-11-12 02:24:51,984 INFO L322 Elim1Store]: treesize reduction 41, result has 46.1 percent of original size [2023-11-12 02:24:51,985 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1320 treesize of output 910 [2023-11-12 02:24:51,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:24:51,999 INFO L351 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 66 [2023-11-12 02:24:52,002 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:24:52,012 INFO L322 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-11-12 02:24:52,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 30 [2023-11-12 02:24:52,021 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-11-12 02:24:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:24:52,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292709951] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:52,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:24:52,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [21, 19] total 51 [2023-11-12 02:24:52,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577889077] [2023-11-12 02:24:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:52,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:24:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:24:52,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=2366, Unknown=4, NotChecked=0, Total=2652 [2023-11-12 02:25:03,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 181 [2023-11-12 02:25:03,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 175 transitions, 1347 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:03,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:03,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 181 [2023-11-12 02:25:03,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand