./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme --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 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:11,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:11,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:02:11,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:11,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:11,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:11,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:11,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:11,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:11,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:11,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:11,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:11,555 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:11,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:11,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:11,558 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:11,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:11,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:11,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:11,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:11,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:11,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:11,561 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:02:11,562 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:11,562 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:11,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:11,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:11,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:11,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:11,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:11,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:11,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:11,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:11,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:11,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:11,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:11,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:11,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:11,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:11,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:11,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:11,570 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_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 [2023-11-26 12:02:11,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:11,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:11,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:11,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:11,911 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:11,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2023-11-26 12:02:14,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:15,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:15,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2023-11-26 12:02:15,367 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/data/d94d2659e/5ae4638e92f345b2bc6f2571e15aef9f/FLAG5f6571fc1 [2023-11-26 12:02:15,382 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/data/d94d2659e/5ae4638e92f345b2bc6f2571e15aef9f [2023-11-26 12:02:15,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:15,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:15,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:15,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:15,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:15,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:15" (1/1) ... [2023-11-26 12:02:15,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dddedc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:15, skipping insertion in model container [2023-11-26 12:02:15,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:15" (1/1) ... [2023-11-26 12:02:15,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:16,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:16,360 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:16,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:16,607 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:02:16,621 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:02:16,629 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:16,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16 WrapperNode [2023-11-26 12:02:16,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:16,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:16,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:16,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:16,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,774 INFO L138 Inliner]: procedures = 481, calls = 75, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 476 [2023-11-26 12:02:16,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:16,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:16,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:16,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:16,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:16,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:16,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:16,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:16,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (1/1) ... [2023-11-26 12:02:16,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:16,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:16,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:16,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:02:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:02:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:02:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:02:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-26 12:02:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-26 12:02:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:02:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:02:16,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:02:16,963 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:02:17,293 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:17,295 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:18,097 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:18,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:18,507 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-26 12:02:18,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:18 BoogieIcfgContainer [2023-11-26 12:02:18,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:18,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:18,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:18,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:18,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:15" (1/3) ... [2023-11-26 12:02:18,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef85a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:18, skipping insertion in model container [2023-11-26 12:02:18,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:16" (2/3) ... [2023-11-26 12:02:18,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef85a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:18, skipping insertion in model container [2023-11-26 12:02:18,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:18" (3/3) ... [2023-11-26 12:02:18,523 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-11-26 12:02:18,533 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:02:18,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:18,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-26 12:02:18,545 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:02:18,733 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 12:02:18,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 355 transitions, 717 flow [2023-11-26 12:02:18,984 INFO L124 PetriNetUnfolderBase]: 21/376 cut-off events. [2023-11-26 12:02:18,984 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:02:18,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 376 events. 21/376 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 738 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 278. Up to 4 conditions per place. [2023-11-26 12:02:18,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 339 places, 355 transitions, 717 flow [2023-11-26 12:02:19,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 355 transitions, 717 flow [2023-11-26 12:02:19,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:19,041 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;@1754808d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:19,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-26 12:02:19,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:19,054 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-26 12:02:19,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:19,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:19,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:19,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-26 12:02:19,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1978321895, now seen corresponding path program 1 times [2023-11-26 12:02:19,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:19,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404728792] [2023-11-26 12:02:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:19,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:19,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404728792] [2023-11-26 12:02:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404728792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:19,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:19,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:02:19,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309406544] [2023-11-26 12:02:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:19,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:19,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:19,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 355 [2023-11-26 12:02:19,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 355 transitions, 717 flow. Second operand has 2 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 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) [2023-11-26 12:02:19,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:19,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 355 [2023-11-26 12:02:19,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:20,278 INFO L124 PetriNetUnfolderBase]: 9/336 cut-off events. [2023-11-26 12:02:20,278 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 12:02:20,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 336 events. 9/336 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 427 event pairs, 0 based on Foata normal form. 25/340 useless extension candidates. Maximal degree in co-relation 253. Up to 15 conditions per place. [2023-11-26 12:02:20,282 INFO L140 encePairwiseOnDemand]: 320/355 looper letters, 14 selfloop transitions, 0 changer transitions 0/317 dead transitions. [2023-11-26 12:02:20,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 317 transitions, 669 flow [2023-11-26 12:02:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 12:02:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 659 transitions. [2023-11-26 12:02:20,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.928169014084507 [2023-11-26 12:02:20,304 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 659 transitions. [2023-11-26 12:02:20,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 659 transitions. [2023-11-26 12:02:20,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:20,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 659 transitions. [2023-11-26 12:02:20,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 329.5) internal successors, (659), 2 states have internal predecessors, (659), 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) [2023-11-26 12:02:20,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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) [2023-11-26 12:02:20,327 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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) [2023-11-26 12:02:20,330 INFO L175 Difference]: Start difference. First operand has 339 places, 355 transitions, 717 flow. Second operand 2 states and 659 transitions. [2023-11-26 12:02:20,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 317 transitions, 669 flow [2023-11-26 12:02:20,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 317 transitions, 669 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:20,348 INFO L231 Difference]: Finished difference. Result has 312 places, 317 transitions, 641 flow [2023-11-26 12:02:20,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=641, PETRI_PLACES=312, PETRI_TRANSITIONS=317} [2023-11-26 12:02:20,355 INFO L281 CegarLoopForPetriNet]: 339 programPoint places, -27 predicate places. [2023-11-26 12:02:20,356 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 317 transitions, 641 flow [2023-11-26 12:02:20,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 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) [2023-11-26 12:02:20,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:20,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:20,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:20,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-26 12:02:20,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 763816289, now seen corresponding path program 1 times [2023-11-26 12:02:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:20,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065469210] [2023-11-26 12:02:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:20,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:20,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065469210] [2023-11-26 12:02:20,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065469210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:20,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:20,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:20,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971423233] [2023-11-26 12:02:20,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:20,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:02:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:20,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 355 [2023-11-26 12:02:20,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 317 transitions, 641 flow. Second operand has 5 states, 5 states have (on average 298.2) internal successors, (1491), 5 states have internal predecessors, (1491), 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) [2023-11-26 12:02:20,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:20,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 355 [2023-11-26 12:02:20,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:21,326 INFO L124 PetriNetUnfolderBase]: 9/346 cut-off events. [2023-11-26 12:02:21,327 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 12:02:21,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 346 events. 9/346 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 426 event pairs, 0 based on Foata normal form. 1/327 useless extension candidates. Maximal degree in co-relation 374. Up to 12 conditions per place. [2023-11-26 12:02:21,330 INFO L140 encePairwiseOnDemand]: 348/355 looper letters, 19 selfloop transitions, 6 changer transitions 0/319 dead transitions. [2023-11-26 12:02:21,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 319 transitions, 695 flow [2023-11-26 12:02:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:02:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:02:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1506 transitions. [2023-11-26 12:02:21,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8484507042253521 [2023-11-26 12:02:21,337 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1506 transitions. [2023-11-26 12:02:21,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1506 transitions. [2023-11-26 12:02:21,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:21,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1506 transitions. [2023-11-26 12:02:21,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 301.2) internal successors, (1506), 5 states have internal predecessors, (1506), 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) [2023-11-26 12:02:21,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 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) [2023-11-26 12:02:21,352 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 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) [2023-11-26 12:02:21,352 INFO L175 Difference]: Start difference. First operand has 312 places, 317 transitions, 641 flow. Second operand 5 states and 1506 transitions. [2023-11-26 12:02:21,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 319 transitions, 695 flow [2023-11-26 12:02:21,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 319 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:21,364 INFO L231 Difference]: Finished difference. Result has 317 places, 318 transitions, 661 flow [2023-11-26 12:02:21,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=661, PETRI_PLACES=317, PETRI_TRANSITIONS=318} [2023-11-26 12:02:21,366 INFO L281 CegarLoopForPetriNet]: 339 programPoint places, -22 predicate places. [2023-11-26 12:02:21,366 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 318 transitions, 661 flow [2023-11-26 12:02:21,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 298.2) internal successors, (1491), 5 states have internal predecessors, (1491), 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) [2023-11-26 12:02:21,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:21,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:21,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:21,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-26 12:02:21,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:21,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1487730261, now seen corresponding path program 1 times [2023-11-26 12:02:21,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:21,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098446408] [2023-11-26 12:02:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:21,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:21,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:21,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098446408] [2023-11-26 12:02:21,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098446408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:21,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:21,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:21,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490016528] [2023-11-26 12:02:21,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:21,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:21,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:21,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:21,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:21,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 355 [2023-11-26 12:02:21,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 318 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2023-11-26 12:02:21,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:21,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 355 [2023-11-26 12:02:21,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:22,079 INFO L124 PetriNetUnfolderBase]: 49/798 cut-off events. [2023-11-26 12:02:22,079 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 12:02:22,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 798 events. 49/798 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2953 event pairs, 7 based on Foata normal form. 9/750 useless extension candidates. Maximal degree in co-relation 888. Up to 47 conditions per place. [2023-11-26 12:02:22,086 INFO L140 encePairwiseOnDemand]: 349/355 looper letters, 25 selfloop transitions, 4 changer transitions 5/326 dead transitions. [2023-11-26 12:02:22,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 326 transitions, 739 flow [2023-11-26 12:02:22,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:22,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-11-26 12:02:22,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8647887323943662 [2023-11-26 12:02:22,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-11-26 12:02:22,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-11-26 12:02:22,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:22,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-11-26 12:02:22,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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) [2023-11-26 12:02:22,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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) [2023-11-26 12:02:22,101 INFO L175 Difference]: Start difference. First operand has 317 places, 318 transitions, 661 flow. Second operand 3 states and 921 transitions. [2023-11-26 12:02:22,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 326 transitions, 739 flow [2023-11-26 12:02:22,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 326 transitions, 729 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:02:22,112 INFO L231 Difference]: Finished difference. Result has 317 places, 313 transitions, 655 flow [2023-11-26 12:02:22,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=317, PETRI_TRANSITIONS=313} [2023-11-26 12:02:22,115 INFO L281 CegarLoopForPetriNet]: 339 programPoint places, -22 predicate places. [2023-11-26 12:02:22,115 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 313 transitions, 655 flow [2023-11-26 12:02:22,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2023-11-26 12:02:22,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:22,116 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:22,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:02:22,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-26 12:02:22,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:22,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2021839709, now seen corresponding path program 1 times [2023-11-26 12:02:22,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483967463] [2023-11-26 12:02:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:22,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:02:22,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:22,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483967463] [2023-11-26 12:02:22,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483967463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:22,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235159295] [2023-11-26 12:02:22,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:22,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:22,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:22,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:22,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:02:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:22,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:02:22,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:02:22,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:02:23,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235159295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:23,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:02:23,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-26 12:02:23,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480234333] [2023-11-26 12:02:23,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:23,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 12:02:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 12:02:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-26 12:02:23,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 355 [2023-11-26 12:02:23,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 313 transitions, 655 flow. Second operand has 15 states, 15 states have (on average 295.46666666666664) internal successors, (4432), 15 states have internal predecessors, (4432), 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) [2023-11-26 12:02:23,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:23,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 355 [2023-11-26 12:02:23,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:24,142 INFO L124 PetriNetUnfolderBase]: 8/336 cut-off events. [2023-11-26 12:02:24,142 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 12:02:24,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 336 events. 8/336 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 366 event pairs, 0 based on Foata normal form. 1/321 useless extension candidates. Maximal degree in co-relation 382. Up to 12 conditions per place. [2023-11-26 12:02:24,145 INFO L140 encePairwiseOnDemand]: 345/355 looper letters, 22 selfloop transitions, 10 changer transitions 0/318 dead transitions. [2023-11-26 12:02:24,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 318 transitions, 729 flow [2023-11-26 12:02:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:02:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-26 12:02:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2377 transitions. [2023-11-26 12:02:24,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8369718309859155 [2023-11-26 12:02:24,153 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2377 transitions. [2023-11-26 12:02:24,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2377 transitions. [2023-11-26 12:02:24,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:24,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2377 transitions. [2023-11-26 12:02:24,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 297.125) internal successors, (2377), 8 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:24,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 355.0) internal successors, (3195), 9 states have internal predecessors, (3195), 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) [2023-11-26 12:02:24,175 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 355.0) internal successors, (3195), 9 states have internal predecessors, (3195), 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) [2023-11-26 12:02:24,175 INFO L175 Difference]: Start difference. First operand has 317 places, 313 transitions, 655 flow. Second operand 8 states and 2377 transitions. [2023-11-26 12:02:24,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 318 transitions, 729 flow [2023-11-26 12:02:24,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 318 transitions, 721 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:24,185 INFO L231 Difference]: Finished difference. Result has 321 places, 316 transitions, 693 flow [2023-11-26 12:02:24,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=693, PETRI_PLACES=321, PETRI_TRANSITIONS=316} [2023-11-26 12:02:24,187 INFO L281 CegarLoopForPetriNet]: 339 programPoint places, -18 predicate places. [2023-11-26 12:02:24,187 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 316 transitions, 693 flow [2023-11-26 12:02:24,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 295.46666666666664) internal successors, (4432), 15 states have internal predecessors, (4432), 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) [2023-11-26 12:02:24,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:24,191 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:24,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:24,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:24,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-26 12:02:24,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1839229337, now seen corresponding path program 2 times [2023-11-26 12:02:24,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:24,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901091406] [2023-11-26 12:02:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:24,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:24,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:24,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:24,567 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:02:24,568 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2023-11-26 12:02:24,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-26 12:02:24,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-26 12:02:24,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-26 12:02:24,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-26 12:02:24,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-26 12:02:24,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-26 12:02:24,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-26 12:02:24,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-26 12:02:24,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-26 12:02:24,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-26 12:02:24,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-26 12:02:24,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-26 12:02:24,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-26 12:02:24,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-26 12:02:24,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-26 12:02:24,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-26 12:02:24,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-26 12:02:24,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-26 12:02:24,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-26 12:02:24,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-26 12:02:24,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-26 12:02:24,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-26 12:02:24,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-26 12:02:24,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-26 12:02:24,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-26 12:02:24,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-26 12:02:24,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-26 12:02:24,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-26 12:02:24,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-26 12:02:24,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-26 12:02:24,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-26 12:02:24,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-26 12:02:24,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-26 12:02:24,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-26 12:02:24,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-26 12:02:24,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-11-26 12:02:24,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-11-26 12:02:24,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-26 12:02:24,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-26 12:02:24,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-26 12:02:24,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-26 12:02:24,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-26 12:02:24,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-26 12:02:24,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-26 12:02:24,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-26 12:02:24,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-26 12:02:24,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-26 12:02:24,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-26 12:02:24,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-26 12:02:24,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-26 12:02:24,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-26 12:02:24,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-26 12:02:24,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-26 12:02:24,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-26 12:02:24,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-26 12:02:24,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-26 12:02:24,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-26 12:02:24,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-26 12:02:24,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-26 12:02:24,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:02:24,591 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-26 12:02:24,593 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 12:02:24,594 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 12:02:24,817 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 12:02:24,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 580 places, 609 transitions, 1234 flow [2023-11-26 12:02:25,072 INFO L124 PetriNetUnfolderBase]: 40/680 cut-off events. [2023-11-26 12:02:25,072 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 12:02:25,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 680 events. 40/680 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2484 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 550. Up to 8 conditions per place. [2023-11-26 12:02:25,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 580 places, 609 transitions, 1234 flow [2023-11-26 12:02:25,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 580 places, 609 transitions, 1234 flow [2023-11-26 12:02:25,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:25,109 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;@1754808d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:25,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2023-11-26 12:02:25,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:25,113 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-26 12:02:25,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:25,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:25,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:25,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:25,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash -397013944, now seen corresponding path program 1 times [2023-11-26 12:02:25,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:25,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696409968] [2023-11-26 12:02:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:25,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:25,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:25,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:25,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696409968] [2023-11-26 12:02:25,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696409968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:25,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:25,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:02:25,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427555838] [2023-11-26 12:02:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:25,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:25,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:25,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:25,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 520 out of 609 [2023-11-26 12:02:25,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 609 transitions, 1234 flow. Second operand has 2 states, 2 states have (on average 520.5) internal successors, (1041), 2 states have internal predecessors, (1041), 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) [2023-11-26 12:02:25,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:25,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 520 of 609 [2023-11-26 12:02:25,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:26,556 INFO L124 PetriNetUnfolderBase]: 147/2667 cut-off events. [2023-11-26 12:02:26,556 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-26 12:02:26,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 2667 events. 147/2667 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 19801 event pairs, 70 based on Foata normal form. 266/2723 useless extension candidates. Maximal degree in co-relation 583. Up to 184 conditions per place. [2023-11-26 12:02:26,599 INFO L140 encePairwiseOnDemand]: 546/609 looper letters, 24 selfloop transitions, 0 changer transitions 0/540 dead transitions. [2023-11-26 12:02:26,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 540 transitions, 1144 flow [2023-11-26 12:02:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:26,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 12:02:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1127 transitions. [2023-11-26 12:02:26,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2023-11-26 12:02:26,604 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1127 transitions. [2023-11-26 12:02:26,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1127 transitions. [2023-11-26 12:02:26,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:26,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1127 transitions. [2023-11-26 12:02:26,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 563.5) internal successors, (1127), 2 states have internal predecessors, (1127), 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) [2023-11-26 12:02:26,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 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) [2023-11-26 12:02:26,613 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 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) [2023-11-26 12:02:26,614 INFO L175 Difference]: Start difference. First operand has 580 places, 609 transitions, 1234 flow. Second operand 2 states and 1127 transitions. [2023-11-26 12:02:26,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 540 transitions, 1144 flow [2023-11-26 12:02:26,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 540 transitions, 1144 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:26,632 INFO L231 Difference]: Finished difference. Result has 529 places, 540 transitions, 1096 flow [2023-11-26 12:02:26,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1096, PETRI_PLACES=529, PETRI_TRANSITIONS=540} [2023-11-26 12:02:26,636 INFO L281 CegarLoopForPetriNet]: 580 programPoint places, -51 predicate places. [2023-11-26 12:02:26,636 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 540 transitions, 1096 flow [2023-11-26 12:02:26,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 520.5) internal successors, (1041), 2 states have internal predecessors, (1041), 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) [2023-11-26 12:02:26,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:26,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:26,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:02:26,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:26,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1285470178, now seen corresponding path program 1 times [2023-11-26 12:02:26,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:26,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098898657] [2023-11-26 12:02:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:26,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:26,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:26,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098898657] [2023-11-26 12:02:26,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098898657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:26,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:26,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:26,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451521668] [2023-11-26 12:02:26,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:26,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:02:26,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:26,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:26,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:26,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 609 [2023-11-26 12:02:26,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 540 transitions, 1096 flow. Second operand has 5 states, 5 states have (on average 513.2) internal successors, (2566), 5 states have internal predecessors, (2566), 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) [2023-11-26 12:02:26,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:26,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 609 [2023-11-26 12:02:26,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:28,622 INFO L124 PetriNetUnfolderBase]: 147/2677 cut-off events. [2023-11-26 12:02:28,622 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-26 12:02:28,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 2677 events. 147/2677 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 19883 event pairs, 70 based on Foata normal form. 1/2469 useless extension candidates. Maximal degree in co-relation 2915. Up to 181 conditions per place. [2023-11-26 12:02:28,658 INFO L140 encePairwiseOnDemand]: 602/609 looper letters, 29 selfloop transitions, 6 changer transitions 0/542 dead transitions. [2023-11-26 12:02:28,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 542 transitions, 1170 flow [2023-11-26 12:02:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:02:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:02:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2591 transitions. [2023-11-26 12:02:28,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8509031198686371 [2023-11-26 12:02:28,667 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2591 transitions. [2023-11-26 12:02:28,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2591 transitions. [2023-11-26 12:02:28,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:28,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2591 transitions. [2023-11-26 12:02:28,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 518.2) internal successors, (2591), 5 states have internal predecessors, (2591), 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) [2023-11-26 12:02:28,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 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) [2023-11-26 12:02:28,687 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 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) [2023-11-26 12:02:28,688 INFO L175 Difference]: Start difference. First operand has 529 places, 540 transitions, 1096 flow. Second operand 5 states and 2591 transitions. [2023-11-26 12:02:28,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 542 transitions, 1170 flow [2023-11-26 12:02:28,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 542 transitions, 1170 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:28,701 INFO L231 Difference]: Finished difference. Result has 534 places, 541 transitions, 1116 flow [2023-11-26 12:02:28,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1116, PETRI_PLACES=534, PETRI_TRANSITIONS=541} [2023-11-26 12:02:28,704 INFO L281 CegarLoopForPetriNet]: 580 programPoint places, -46 predicate places. [2023-11-26 12:02:28,704 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 541 transitions, 1116 flow [2023-11-26 12:02:28,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 513.2) internal successors, (2566), 5 states have internal predecessors, (2566), 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) [2023-11-26 12:02:28,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:28,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:28,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:02:28,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:28,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash 222050891, now seen corresponding path program 1 times [2023-11-26 12:02:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:28,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284773062] [2023-11-26 12:02:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:28,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:28,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284773062] [2023-11-26 12:02:28,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284773062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:28,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:28,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:28,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396902134] [2023-11-26 12:02:28,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:28,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:28,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:28,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:28,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:28,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 609 [2023-11-26 12:02:28,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 541 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-26 12:02:28,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:28,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 609 [2023-11-26 12:02:28,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:30,958 INFO L124 PetriNetUnfolderBase]: 682/5563 cut-off events. [2023-11-26 12:02:30,958 INFO L125 PetriNetUnfolderBase]: For 174/177 co-relation queries the response was YES. [2023-11-26 12:02:31,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6581 conditions, 5563 events. 682/5563 cut-off events. For 174/177 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 52678 event pairs, 199 based on Foata normal form. 73/5121 useless extension candidates. Maximal degree in co-relation 6574. Up to 672 conditions per place. [2023-11-26 12:02:31,137 INFO L140 encePairwiseOnDemand]: 603/609 looper letters, 49 selfloop transitions, 4 changer transitions 0/561 dead transitions. [2023-11-26 12:02:31,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 561 transitions, 1268 flow [2023-11-26 12:02:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1588 transitions. [2023-11-26 12:02:31,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8691844553913519 [2023-11-26 12:02:31,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1588 transitions. [2023-11-26 12:02:31,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1588 transitions. [2023-11-26 12:02:31,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:31,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1588 transitions. [2023-11-26 12:02:31,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 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) [2023-11-26 12:02:31,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2023-11-26 12:02:31,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2023-11-26 12:02:31,174 INFO L175 Difference]: Start difference. First operand has 534 places, 541 transitions, 1116 flow. Second operand 3 states and 1588 transitions. [2023-11-26 12:02:31,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 561 transitions, 1268 flow [2023-11-26 12:02:31,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 561 transitions, 1258 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:02:31,192 INFO L231 Difference]: Finished difference. Result has 534 places, 543 transitions, 1130 flow [2023-11-26 12:02:31,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1130, PETRI_PLACES=534, PETRI_TRANSITIONS=543} [2023-11-26 12:02:31,197 INFO L281 CegarLoopForPetriNet]: 580 programPoint places, -46 predicate places. [2023-11-26 12:02:31,197 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 543 transitions, 1130 flow [2023-11-26 12:02:31,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-26 12:02:31,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:31,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:31,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:02:31,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:31,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:31,199 INFO L85 PathProgramCache]: Analyzing trace with hash 562519300, now seen corresponding path program 1 times [2023-11-26 12:02:31,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:31,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540790546] [2023-11-26 12:02:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:31,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:31,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:31,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540790546] [2023-11-26 12:02:31,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540790546] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:31,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506860776] [2023-11-26 12:02:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:31,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:31,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:31,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:31,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:02:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:31,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:02:31,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:31,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:31,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:31,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506860776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:31,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:02:31,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 12 [2023-11-26 12:02:31,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347477874] [2023-11-26 12:02:31,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:31,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 12:02:31,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 12:02:31,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:02:32,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 609 [2023-11-26 12:02:32,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 543 transitions, 1130 flow. Second operand has 12 states, 12 states have (on average 503.1666666666667) internal successors, (6038), 12 states have internal predecessors, (6038), 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) [2023-11-26 12:02:32,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:32,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 609 [2023-11-26 12:02:32,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:35,864 INFO L124 PetriNetUnfolderBase]: 699/6724 cut-off events. [2023-11-26 12:02:35,864 INFO L125 PetriNetUnfolderBase]: For 294/295 co-relation queries the response was YES. [2023-11-26 12:02:35,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7929 conditions, 6724 events. 699/6724 cut-off events. For 294/295 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 66895 event pairs, 126 based on Foata normal form. 25/6221 useless extension candidates. Maximal degree in co-relation 7921. Up to 423 conditions per place. [2023-11-26 12:02:35,946 INFO L140 encePairwiseOnDemand]: 593/609 looper letters, 71 selfloop transitions, 17 changer transitions 5/585 dead transitions. [2023-11-26 12:02:35,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 585 transitions, 1402 flow [2023-11-26 12:02:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:02:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 12:02:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5582 transitions. [2023-11-26 12:02:35,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8332586953276608 [2023-11-26 12:02:35,968 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5582 transitions. [2023-11-26 12:02:35,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5582 transitions. [2023-11-26 12:02:35,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:35,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5582 transitions. [2023-11-26 12:02:35,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 507.45454545454544) internal successors, (5582), 11 states have internal predecessors, (5582), 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) [2023-11-26 12:02:36,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 609.0) internal successors, (7308), 12 states have internal predecessors, (7308), 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) [2023-11-26 12:02:36,010 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 609.0) internal successors, (7308), 12 states have internal predecessors, (7308), 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) [2023-11-26 12:02:36,011 INFO L175 Difference]: Start difference. First operand has 534 places, 543 transitions, 1130 flow. Second operand 11 states and 5582 transitions. [2023-11-26 12:02:36,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 585 transitions, 1402 flow [2023-11-26 12:02:36,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 585 transitions, 1398 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:36,031 INFO L231 Difference]: Finished difference. Result has 548 places, 542 transitions, 1184 flow [2023-11-26 12:02:36,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1184, PETRI_PLACES=548, PETRI_TRANSITIONS=542} [2023-11-26 12:02:36,034 INFO L281 CegarLoopForPetriNet]: 580 programPoint places, -32 predicate places. [2023-11-26 12:02:36,035 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 542 transitions, 1184 flow [2023-11-26 12:02:36,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 503.1666666666667) internal successors, (6038), 12 states have internal predecessors, (6038), 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) [2023-11-26 12:02:36,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:36,037 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:36,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:36,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60f810de-7695-4067-b6ea-9196ecd450e2/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:36,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:36,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:36,245 INFO L85 PathProgramCache]: Analyzing trace with hash 486339029, now seen corresponding path program 1 times [2023-11-26 12:02:36,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:36,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604960471] [2023-11-26 12:02:36,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:36,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 12:02:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604960471] [2023-11-26 12:02:37,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604960471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:37,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:37,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:37,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376942358] [2023-11-26 12:02:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:37,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:37,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:37,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:37,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:37,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 609 [2023-11-26 12:02:37,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 542 transitions, 1184 flow. Second operand has 6 states, 6 states have (on average 487.0) internal successors, (2922), 6 states have internal predecessors, (2922), 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) [2023-11-26 12:02:37,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:37,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 609 [2023-11-26 12:02:37,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:41,424 INFO L124 PetriNetUnfolderBase]: 1054/9652 cut-off events. [2023-11-26 12:02:41,424 INFO L125 PetriNetUnfolderBase]: For 548/548 co-relation queries the response was YES. [2023-11-26 12:02:41,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11614 conditions, 9652 events. 1054/9652 cut-off events. For 548/548 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 99593 event pairs, 275 based on Foata normal form. 0/8900 useless extension candidates. Maximal degree in co-relation 11601. Up to 1338 conditions per place. [2023-11-26 12:02:41,496 INFO L140 encePairwiseOnDemand]: 576/609 looper letters, 64 selfloop transitions, 66 changer transitions 0/613 dead transitions. [2023-11-26 12:02:41,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 613 transitions, 1618 flow [2023-11-26 12:02:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:02:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3043 transitions. [2023-11-26 12:02:41,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8327859879584018 [2023-11-26 12:02:41,507 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3043 transitions. [2023-11-26 12:02:41,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3043 transitions. [2023-11-26 12:02:41,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:41,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3043 transitions. [2023-11-26 12:02:41,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 507.1666666666667) internal successors, (3043), 6 states have internal predecessors, (3043), 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) [2023-11-26 12:02:41,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 609.0) internal successors, (4263), 7 states have internal predecessors, (4263), 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) [2023-11-26 12:02:41,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 609.0) internal successors, (4263), 7 states have internal predecessors, (4263), 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) [2023-11-26 12:02:41,527 INFO L175 Difference]: Start difference. First operand has 548 places, 542 transitions, 1184 flow. Second operand 6 states and 3043 transitions. [2023-11-26 12:02:41,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 613 transitions, 1618 flow [2023-11-26 12:02:41,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 613 transitions, 1594 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-26 12:02:41,544 INFO L231 Difference]: Finished difference. Result has 549 places, 605 transitions, 1610 flow [2023-11-26 12:02:41,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1610, PETRI_PLACES=549, PETRI_TRANSITIONS=605} [2023-11-26 12:02:41,546 INFO L281 CegarLoopForPetriNet]: 580 programPoint places, -31 predicate places. [2023-11-26 12:02:41,546 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 605 transitions, 1610 flow [2023-11-26 12:02:41,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 487.0) internal successors, (2922), 6 states have internal predecessors, (2922), 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) [2023-11-26 12:02:41,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:41,548 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:41,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:02:41,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-11-26 12:02:41,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1668345012, now seen corresponding path program 1 times [2023-11-26 12:02:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:41,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716442996] [2023-11-26 12:02:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:41,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:41,600 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:41,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:41,661 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:02:41,661 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (86 of 87 remaining) [2023-11-26 12:02:41,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (85 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (84 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (83 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (82 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (81 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (80 of 87 remaining) [2023-11-26 12:02:41,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (79 of 87 remaining) [2023-11-26 12:02:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (78 of 87 remaining) [2023-11-26 12:02:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (77 of 87 remaining) [2023-11-26 12:02:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (76 of 87 remaining) [2023-11-26 12:02:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (75 of 87 remaining) [2023-11-26 12:02:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (74 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (73 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (72 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (71 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (70 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (69 of 87 remaining) [2023-11-26 12:02:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (68 of 87 remaining) [2023-11-26 12:02:41,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (67 of 87 remaining) [2023-11-26 12:02:41,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (66 of 87 remaining) [2023-11-26 12:02:41,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (65 of 87 remaining) [2023-11-26 12:02:41,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (64 of 87 remaining) [2023-11-26 12:02:41,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (63 of 87 remaining) [2023-11-26 12:02:41,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (62 of 87 remaining) [2023-11-26 12:02:41,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (61 of 87 remaining) [2023-11-26 12:02:41,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (60 of 87 remaining) [2023-11-26 12:02:41,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (59 of 87 remaining) [2023-11-26 12:02:41,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (58 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (57 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (56 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (55 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (54 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 87 remaining) [2023-11-26 12:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (52 of 87 remaining) [2023-11-26 12:02:41,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (51 of 87 remaining) [2023-11-26 12:02:41,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (50 of 87 remaining) [2023-11-26 12:02:41,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (49 of 87 remaining) [2023-11-26 12:02:41,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (48 of 87 remaining) [2023-11-26 12:02:41,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (47 of 87 remaining) [2023-11-26 12:02:41,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (46 of 87 remaining) [2023-11-26 12:02:41,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 87 remaining) [2023-11-26 12:02:41,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 87 remaining) [2023-11-26 12:02:41,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 87 remaining) [2023-11-26 12:02:41,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (41 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (40 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (39 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (38 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (37 of 87 remaining) [2023-11-26 12:02:41,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (36 of 87 remaining) [2023-11-26 12:02:41,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (35 of 87 remaining) [2023-11-26 12:02:41,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (34 of 87 remaining) [2023-11-26 12:02:41,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (33 of 87 remaining) [2023-11-26 12:02:41,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (32 of 87 remaining) [2023-11-26 12:02:41,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 87 remaining) [2023-11-26 12:02:41,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 87 remaining) [2023-11-26 12:02:41,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 87 remaining) [2023-11-26 12:02:41,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 87 remaining) [2023-11-26 12:02:41,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (25 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (24 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (22 of 87 remaining) [2023-11-26 12:02:41,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 87 remaining) [2023-11-26 12:02:41,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 87 remaining) [2023-11-26 12:02:41,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (19 of 87 remaining) [2023-11-26 12:02:41,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 87 remaining) [2023-11-26 12:02:41,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 87 remaining) [2023-11-26 12:02:41,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (14 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (13 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (12 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (11 of 87 remaining) [2023-11-26 12:02:41,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (10 of 87 remaining) [2023-11-26 12:02:41,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 87 remaining) [2023-11-26 12:02:41,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 87 remaining) [2023-11-26 12:02:41,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (7 of 87 remaining) [2023-11-26 12:02:41,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (6 of 87 remaining) [2023-11-26 12:02:41,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (5 of 87 remaining) [2023-11-26 12:02:41,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 87 remaining) [2023-11-26 12:02:41,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 87 remaining) [2023-11-26 12:02:41,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 87 remaining) [2023-11-26 12:02:41,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 87 remaining) [2023-11-26 12:02:41,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 87 remaining) [2023-11-26 12:02:41,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:02:41,678 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-26 12:02:41,678 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 12:02:41,679 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 12:02:41,896 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 12:02:41,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 863 transitions, 1753 flow [2023-11-26 12:02:42,322 INFO L124 PetriNetUnfolderBase]: 64/1025 cut-off events. [2023-11-26 12:02:42,322 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-26 12:02:42,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 1025 events. 64/1025 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4953 event pairs, 1 based on Foata normal form. 0/864 useless extension candidates. Maximal degree in co-relation 844. Up to 16 conditions per place. [2023-11-26 12:02:42,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 821 places, 863 transitions, 1753 flow [2023-11-26 12:02:42,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 863 transitions, 1753 flow [2023-11-26 12:02:42,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:42,377 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;@1754808d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:42,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2023-11-26 12:02:42,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:42,380 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-26 12:02:42,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:42,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:42,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:42,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-26 12:02:42,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:42,381 INFO L85 PathProgramCache]: Analyzing trace with hash -102805081, now seen corresponding path program 1 times [2023-11-26 12:02:42,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:42,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957893222] [2023-11-26 12:02:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:42,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:42,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:42,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957893222] [2023-11-26 12:02:42,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957893222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:02:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455789548] [2023-11-26 12:02:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:42,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:42,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:42,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 735 out of 863 [2023-11-26 12:02:42,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 821 places, 863 transitions, 1753 flow. Second operand has 2 states, 2 states have (on average 735.5) internal successors, (1471), 2 states have internal predecessors, (1471), 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) [2023-11-26 12:02:42,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:42,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 735 of 863 [2023-11-26 12:02:42,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:50,456 INFO L124 PetriNetUnfolderBase]: 2051/23411 cut-off events. [2023-11-26 12:02:50,456 INFO L125 PetriNetUnfolderBase]: For 1351/1351 co-relation queries the response was YES. [2023-11-26 12:02:50,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26355 conditions, 23411 events. 2051/23411 cut-off events. For 1351/1351 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 307354 event pairs, 1317 based on Foata normal form. 2807/24227 useless extension candidates. Maximal degree in co-relation 2886. Up to 2408 conditions per place. [2023-11-26 12:02:50,748 INFO L140 encePairwiseOnDemand]: 772/863 looper letters, 34 selfloop transitions, 0 changer transitions 0/763 dead transitions. [2023-11-26 12:02:50,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 763 transitions, 1621 flow [2023-11-26 12:02:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 12:02:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1595 transitions. [2023-11-26 12:02:50,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9241019698725377 [2023-11-26 12:02:50,755 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1595 transitions. [2023-11-26 12:02:50,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1595 transitions. [2023-11-26 12:02:50,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:50,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1595 transitions. [2023-11-26 12:02:50,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 797.5) internal successors, (1595), 2 states have internal predecessors, (1595), 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) [2023-11-26 12:02:50,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 863.0) internal successors, (2589), 3 states have internal predecessors, (2589), 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) [2023-11-26 12:02:50,765 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 863.0) internal successors, (2589), 3 states have internal predecessors, (2589), 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) [2023-11-26 12:02:50,765 INFO L175 Difference]: Start difference. First operand has 821 places, 863 transitions, 1753 flow. Second operand 2 states and 1595 transitions. [2023-11-26 12:02:50,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 746 places, 763 transitions, 1621 flow [2023-11-26 12:02:50,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 746 places, 763 transitions, 1621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:50,782 INFO L231 Difference]: Finished difference. Result has 746 places, 763 transitions, 1553 flow [2023-11-26 12:02:50,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=863, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=745, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1553, PETRI_PLACES=746, PETRI_TRANSITIONS=763} [2023-11-26 12:02:50,785 INFO L281 CegarLoopForPetriNet]: 821 programPoint places, -75 predicate places. [2023-11-26 12:02:50,785 INFO L495 AbstractCegarLoop]: Abstraction has has 746 places, 763 transitions, 1553 flow [2023-11-26 12:02:50,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 735.5) internal successors, (1471), 2 states have internal predecessors, (1471), 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) [2023-11-26 12:02:50,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:50,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:50,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:02:50,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-26 12:02:50,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:50,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2002278623, now seen corresponding path program 1 times [2023-11-26 12:02:50,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:50,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909560805] [2023-11-26 12:02:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:50,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909560805] [2023-11-26 12:02:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909560805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:50,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:50,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854499043] [2023-11-26 12:02:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:50,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:02:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:50,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:51,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 863 [2023-11-26 12:02:51,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 763 transitions, 1553 flow. Second operand has 5 states, 5 states have (on average 728.2) internal successors, (3641), 5 states have internal predecessors, (3641), 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) [2023-11-26 12:02:51,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:51,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 863 [2023-11-26 12:02:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:58,501 INFO L124 PetriNetUnfolderBase]: 2051/23421 cut-off events. [2023-11-26 12:02:58,502 INFO L125 PetriNetUnfolderBase]: For 1351/1351 co-relation queries the response was YES. [2023-11-26 12:02:58,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26377 conditions, 23421 events. 2051/23421 cut-off events. For 1351/1351 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 306881 event pairs, 1317 based on Foata normal form. 1/21432 useless extension candidates. Maximal degree in co-relation 26371. Up to 2405 conditions per place. [2023-11-26 12:02:58,799 INFO L140 encePairwiseOnDemand]: 856/863 looper letters, 39 selfloop transitions, 6 changer transitions 0/765 dead transitions. [2023-11-26 12:02:58,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 765 transitions, 1647 flow [2023-11-26 12:02:58,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:02:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:02:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3676 transitions. [2023-11-26 12:02:58,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8519119351100811 [2023-11-26 12:02:58,814 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3676 transitions. [2023-11-26 12:02:58,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3676 transitions. [2023-11-26 12:02:58,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:58,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3676 transitions. [2023-11-26 12:02:58,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 735.2) internal successors, (3676), 5 states have internal predecessors, (3676), 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) [2023-11-26 12:02:58,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 863.0) internal successors, (5178), 6 states have internal predecessors, (5178), 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) [2023-11-26 12:02:58,837 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 863.0) internal successors, (5178), 6 states have internal predecessors, (5178), 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) [2023-11-26 12:02:58,837 INFO L175 Difference]: Start difference. First operand has 746 places, 763 transitions, 1553 flow. Second operand 5 states and 3676 transitions. [2023-11-26 12:02:58,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 750 places, 765 transitions, 1647 flow [2023-11-26 12:02:58,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 750 places, 765 transitions, 1647 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:58,853 INFO L231 Difference]: Finished difference. Result has 751 places, 764 transitions, 1573 flow [2023-11-26 12:02:58,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=863, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=746, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1573, PETRI_PLACES=751, PETRI_TRANSITIONS=764} [2023-11-26 12:02:58,855 INFO L281 CegarLoopForPetriNet]: 821 programPoint places, -70 predicate places. [2023-11-26 12:02:58,855 INFO L495 AbstractCegarLoop]: Abstraction has has 751 places, 764 transitions, 1573 flow [2023-11-26 12:02:58,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 728.2) internal successors, (3641), 5 states have internal predecessors, (3641), 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) [2023-11-26 12:02:58,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:58,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:58,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:02:58,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-26 12:02:58,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash -176053845, now seen corresponding path program 1 times [2023-11-26 12:02:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:58,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830626145] [2023-11-26 12:02:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:02:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830626145] [2023-11-26 12:02:59,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830626145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:59,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:59,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946856543] [2023-11-26 12:02:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:59,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:59,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 863 [2023-11-26 12:02:59,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 751 places, 764 transitions, 1573 flow. Second operand has 3 states, 3 states have (on average 729.0) internal successors, (2187), 3 states have internal predecessors, (2187), 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) [2023-11-26 12:02:59,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:59,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 863 [2023-11-26 12:02:59,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand