./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:13,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:13,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:26:13,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:13,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:13,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:13,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:13,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:13,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:13,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:13,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:13,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:13,552 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:13,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:13,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:13,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:13,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:13,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:13,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:13,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:13,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:13,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:13,575 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:26:13,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:26:13,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:13,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:13,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:13,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:13,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:13,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:13,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:13,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:13,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:13,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:13,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:13,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:13,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:13,584 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:13,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:13,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:13,585 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:13,585 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_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2023-11-12 02:26:13,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:13,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:13,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:13,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:13,956 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:13,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2023-11-12 02:26:17,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:17,674 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:17,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/sv-benchmarks/c/pthread-lit/fkp2014.i [2023-11-12 02:26:17,700 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/data/f83d258c5/083dfbb671f44d4dbd93e78033c6d296/FLAG662a02e27 [2023-11-12 02:26:17,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/data/f83d258c5/083dfbb671f44d4dbd93e78033c6d296 [2023-11-12 02:26:17,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:17,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:17,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:17,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:17,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:17,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3305cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:17, skipping insertion in model container [2023-11-12 02:26:17,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:17" (1/1) ... [2023-11-12 02:26:17,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:18,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:18,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:18,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:18,501 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:18,501 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:18,510 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:18,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18 WrapperNode [2023-11-12 02:26:18,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:18,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:18,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:18,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:18,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,574 INFO L138 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 87 [2023-11-12 02:26:18,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:18,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:18,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:18,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:18,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:18,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:18,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:18,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:18,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (1/1) ... [2023-11-12 02:26:18,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:18,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:18,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:18,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:26:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:26:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-12 02:26:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-12 02:26:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:26:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:26:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:26:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:18,705 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:26:18,835 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:18,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:19,060 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:19,118 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:19,123 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:26:19,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:19 BoogieIcfgContainer [2023-11-12 02:26:19,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:19,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:19,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:19,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:19,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:17" (1/3) ... [2023-11-12 02:26:19,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4473e5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:19, skipping insertion in model container [2023-11-12 02:26:19,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:18" (2/3) ... [2023-11-12 02:26:19,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4473e5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:19, skipping insertion in model container [2023-11-12 02:26:19,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:19" (3/3) ... [2023-11-12 02:26:19,135 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2023-11-12 02:26:19,145 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:26:19,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:19,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-12 02:26:19,155 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:26:19,201 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:26:19,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,291 INFO L124 PetriNetUnfolderBase]: 5/96 cut-off events. [2023-11-12 02:26:19,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:19,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 5/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-11-12 02:26:19,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,308 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:19,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,323 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 172 flow [2023-11-12 02:26:19,353 INFO L124 PetriNetUnfolderBase]: 5/96 cut-off events. [2023-11-12 02:26:19,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:19,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 5/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-11-12 02:26:19,357 INFO L119 LiptonReduction]: Number of co-enabled transitions 1188 [2023-11-12 02:26:21,873 INFO L134 LiptonReduction]: Checked pairs total: 948 [2023-11-12 02:26:21,874 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-11-12 02:26:21,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:21,899 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;@4d306545, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:21,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-12 02:26:21,901 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:21,901 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:26:21,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:21,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:21,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:26:21,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-12 02:26:21,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:21,908 INFO L85 PathProgramCache]: Analyzing trace with hash 382, now seen corresponding path program 1 times [2023-11-12 02:26:21,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:21,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305578654] [2023-11-12 02:26:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:22,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:22,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305578654] [2023-11-12 02:26:22,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305578654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:22,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:22,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:26:22,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766113810] [2023-11-12 02:26:22,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:26:22,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:26:22,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:22,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 180 [2023-11-12 02:26:22,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 14 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:22,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:22,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 180 [2023-11-12 02:26:22,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:22,114 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2023-11-12 02:26:22,114 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:22,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 16 events. 3/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 3 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 20. Up to 15 conditions per place. [2023-11-12 02:26:22,116 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 5 selfloop transitions, 0 changer transitions 1/7 dead transitions. [2023-11-12 02:26:22,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 7 transitions, 30 flow [2023-11-12 02:26:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:26:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 157 transitions. [2023-11-12 02:26:22,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4361111111111111 [2023-11-12 02:26:22,130 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 157 transitions. [2023-11-12 02:26:22,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 157 transitions. [2023-11-12 02:26:22,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:22,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 157 transitions. [2023-11-12 02:26:22,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:22,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:22,145 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:22,148 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 32 flow. Second operand 2 states and 157 transitions. [2023-11-12 02:26:22,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 7 transitions, 30 flow [2023-11-12 02:26:22,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:22,152 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 16 flow [2023-11-12 02:26:22,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=16, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2023-11-12 02:26:22,158 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -6 predicate places. [2023-11-12 02:26:22,158 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 6 transitions, 16 flow [2023-11-12 02:26:22,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:22,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:22,159 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:26:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:26:22,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-12 02:26:22,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1392723419, now seen corresponding path program 1 times [2023-11-12 02:26:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:22,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325674963] [2023-11-12 02:26:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:22,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:22,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:22,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:26:22,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2023-11-12 02:26:22,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-11-12 02:26:22,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-11-12 02:26:22,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-11-12 02:26:22,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-11-12 02:26:22,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2023-11-12 02:26:22,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-11-12 02:26:22,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-11-12 02:26:22,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-11-12 02:26:22,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-11-12 02:26:22,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-11-12 02:26:22,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-11-12 02:26:22,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-11-12 02:26:22,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-11-12 02:26:22,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:26:22,286 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:26:22,292 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:26:22,292 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:26:22,329 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:26:22,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,401 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2023-11-12 02:26:22,402 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:26:22,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 147 events. 8/147 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2023-11-12 02:26:22,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,410 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:22,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,411 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 246 flow [2023-11-12 02:26:22,444 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2023-11-12 02:26:22,445 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:26:22,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 147 events. 8/147 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2023-11-12 02:26:22,454 INFO L119 LiptonReduction]: Number of co-enabled transitions 4620 [2023-11-12 02:26:24,381 INFO L134 LiptonReduction]: Checked pairs total: 10617 [2023-11-12 02:26:24,381 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-12 02:26:24,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:24,385 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;@4d306545, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:24,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 02:26:24,386 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:24,387 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:26:24,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:24,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:24,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:26:24,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:26:24,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash 653, now seen corresponding path program 1 times [2023-11-12 02:26:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:24,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680840989] [2023-11-12 02:26:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:24,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:24,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:24,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680840989] [2023-11-12 02:26:24,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680840989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:24,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:24,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:26:24,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398784480] [2023-11-12 02:26:24,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:24,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:26:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:26:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:24,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 240 [2023-11-12 02:26:24,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 84 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:24,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 240 [2023-11-12 02:26:24,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:24,492 INFO L124 PetriNetUnfolderBase]: 152/384 cut-off events. [2023-11-12 02:26:24,493 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-12 02:26:24,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 384 events. 152/384 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1981 event pairs, 152 based on Foata normal form. 44/350 useless extension candidates. Maximal degree in co-relation 185. Up to 276 conditions per place. [2023-11-12 02:26:24,497 INFO L140 encePairwiseOnDemand]: 229/240 looper letters, 14 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-11-12 02:26:24,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 90 flow [2023-11-12 02:26:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:26:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions. [2023-11-12 02:26:24,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45208333333333334 [2023-11-12 02:26:24,501 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions. [2023-11-12 02:26:24,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions. [2023-11-12 02:26:24,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:24,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions. [2023-11-12 02:26:24,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,508 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,508 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 84 flow. Second operand 2 states and 217 transitions. [2023-11-12 02:26:24,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 90 flow [2023-11-12 02:26:24,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:24,531 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 62 flow [2023-11-12 02:26:24,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-11-12 02:26:24,532 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -8 predicate places. [2023-11-12 02:26:24,532 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 62 flow [2023-11-12 02:26:24,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:24,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:26:24,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:26:24,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:26:24,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:24,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1933957786, now seen corresponding path program 1 times [2023-11-12 02:26:24,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:24,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571366604] [2023-11-12 02:26:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:24,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571366604] [2023-11-12 02:26:24,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571366604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:24,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690085438] [2023-11-12 02:26:24,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:24,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:24,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:24,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 240 [2023-11-12 02:26:24,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:24,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 240 [2023-11-12 02:26:24,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:24,760 INFO L124 PetriNetUnfolderBase]: 249/579 cut-off events. [2023-11-12 02:26:24,760 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-12 02:26:24,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 579 events. 249/579 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3102 event pairs, 96 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 1051. Up to 281 conditions per place. [2023-11-12 02:26:24,765 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 26 selfloop transitions, 6 changer transitions 0/40 dead transitions. [2023-11-12 02:26:24,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 159 flow [2023-11-12 02:26:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-11-12 02:26:24,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41805555555555557 [2023-11-12 02:26:24,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-11-12 02:26:24,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-11-12 02:26:24,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:24,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-11-12 02:26:24,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,776 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 62 flow. Second operand 3 states and 301 transitions. [2023-11-12 02:26:24,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 159 flow [2023-11-12 02:26:24,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 159 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:24,779 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 114 flow [2023-11-12 02:26:24,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2023-11-12 02:26:24,780 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2023-11-12 02:26:24,780 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 114 flow [2023-11-12 02:26:24,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:24,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:24,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:26:24,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:26:24,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1187423336, now seen corresponding path program 1 times [2023-11-12 02:26:24,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:24,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450177165] [2023-11-12 02:26:24,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:24,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:24,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450177165] [2023-11-12 02:26:24,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450177165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:24,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:24,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:24,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720198564] [2023-11-12 02:26:24,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:24,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:24,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:24,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:24,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:24,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 240 [2023-11-12 02:26:24,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:24,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:24,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 240 [2023-11-12 02:26:24,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:24,998 INFO L124 PetriNetUnfolderBase]: 531/1025 cut-off events. [2023-11-12 02:26:24,999 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2023-11-12 02:26:25,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2441 conditions, 1025 events. 531/1025 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5587 event pairs, 176 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 2434. Up to 611 conditions per place. [2023-11-12 02:26:25,007 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 36 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2023-11-12 02:26:25,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 259 flow [2023-11-12 02:26:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2023-11-12 02:26:25,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2023-11-12 02:26:25,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2023-11-12 02:26:25,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2023-11-12 02:26:25,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:25,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2023-11-12 02:26:25,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:25,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:25,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:25,017 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 114 flow. Second operand 3 states and 308 transitions. [2023-11-12 02:26:25,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 259 flow [2023-11-12 02:26:25,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:25,024 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 154 flow [2023-11-12 02:26:25,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2023-11-12 02:26:25,025 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2023-11-12 02:26:25,025 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 154 flow [2023-11-12 02:26:25,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:25,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:25,026 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 02:26:25,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:26:25,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-11-12 02:26:25,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:25,027 INFO L85 PathProgramCache]: Analyzing trace with hash -529291697, now seen corresponding path program 1 times [2023-11-12 02:26:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:25,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597354959] [2023-11-12 02:26:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:25,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:25,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:25,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:25,099 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:26:25,100 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2023-11-12 02:26:25,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2023-11-12 02:26:25,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2023-11-12 02:26:25,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2023-11-12 02:26:25,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2023-11-12 02:26:25,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2023-11-12 02:26:25,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2023-11-12 02:26:25,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2023-11-12 02:26:25,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2023-11-12 02:26:25,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2023-11-12 02:26:25,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2023-11-12 02:26:25,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2023-11-12 02:26:25,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2023-11-12 02:26:25,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2023-11-12 02:26:25,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2023-11-12 02:26:25,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2023-11-12 02:26:25,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2023-11-12 02:26:25,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2023-11-12 02:26:25,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2023-11-12 02:26:25,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2023-11-12 02:26:25,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:26:25,109 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:26:25,110 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:26:25,112 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 02:26:25,142 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:26:25,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,181 INFO L124 PetriNetUnfolderBase]: 11/198 cut-off events. [2023-11-12 02:26:25,181 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:26:25,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 11/198 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 456 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 151. Up to 8 conditions per place. [2023-11-12 02:26:25,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,186 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:25,186 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,188 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 152 transitions, 322 flow [2023-11-12 02:26:25,225 INFO L124 PetriNetUnfolderBase]: 11/198 cut-off events. [2023-11-12 02:26:25,225 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:26:25,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 11/198 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 456 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 151. Up to 8 conditions per place. [2023-11-12 02:26:25,235 INFO L119 LiptonReduction]: Number of co-enabled transitions 10296 [2023-11-12 02:26:27,413 INFO L134 LiptonReduction]: Checked pairs total: 25655 [2023-11-12 02:26:27,414 INFO L136 LiptonReduction]: Total number of compositions: 152 [2023-11-12 02:26:27,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:27,417 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;@4d306545, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:27,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-12 02:26:27,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:27,418 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:26:27,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:27,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:27,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:26:27,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-12 02:26:27,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:27,420 INFO L85 PathProgramCache]: Analyzing trace with hash 993, now seen corresponding path program 1 times [2023-11-12 02:26:27,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575694355] [2023-11-12 02:26:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:27,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:27,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575694355] [2023-11-12 02:26:27,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575694355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:27,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:27,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:26:27,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666422739] [2023-11-12 02:26:27,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:27,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:26:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:26:27,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:27,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 304 [2023-11-12 02:26:27,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:27,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 304 [2023-11-12 02:26:27,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:27,657 INFO L124 PetriNetUnfolderBase]: 765/1532 cut-off events. [2023-11-12 02:26:27,657 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-12 02:26:27,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2783 conditions, 1532 events. 765/1532 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9905 event pairs, 765 based on Foata normal form. 252/1504 useless extension candidates. Maximal degree in co-relation 543. Up to 1169 conditions per place. [2023-11-12 02:26:27,669 INFO L140 encePairwiseOnDemand]: 288/304 looper letters, 17 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-11-12 02:26:27,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 124 flow [2023-11-12 02:26:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:26:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 273 transitions. [2023-11-12 02:26:27,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44901315789473684 [2023-11-12 02:26:27,672 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 273 transitions. [2023-11-12 02:26:27,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 273 transitions. [2023-11-12 02:26:27,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:27,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 273 transitions. [2023-11-12 02:26:27,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,677 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,677 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 122 flow. Second operand 2 states and 273 transitions. [2023-11-12 02:26:27,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 124 flow [2023-11-12 02:26:27,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 122 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:27,679 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 88 flow [2023-11-12 02:26:27,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-12 02:26:27,680 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -12 predicate places. [2023-11-12 02:26:27,680 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 88 flow [2023-11-12 02:26:27,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:27,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:26:27,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:26:27,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-12 02:26:27,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:27,682 INFO L85 PathProgramCache]: Analyzing trace with hash -477595223, now seen corresponding path program 1 times [2023-11-12 02:26:27,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:27,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314960393] [2023-11-12 02:26:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:27,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:27,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314960393] [2023-11-12 02:26:27,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314960393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:27,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:27,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630467899] [2023-11-12 02:26:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:27,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:27,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 304 [2023-11-12 02:26:27,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:27,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:27,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 304 [2023-11-12 02:26:27,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:28,326 INFO L124 PetriNetUnfolderBase]: 2999/5552 cut-off events. [2023-11-12 02:26:28,327 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2023-11-12 02:26:28,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10280 conditions, 5552 events. 2999/5552 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 40283 event pairs, 1218 based on Foata normal form. 0/4617 useless extension candidates. Maximal degree in co-relation 10274. Up to 2849 conditions per place. [2023-11-12 02:26:28,370 INFO L140 encePairwiseOnDemand]: 292/304 looper letters, 36 selfloop transitions, 9 changer transitions 0/56 dead transitions. [2023-11-12 02:26:28,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 228 flow [2023-11-12 02:26:28,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-11-12 02:26:28,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4144736842105263 [2023-11-12 02:26:28,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-11-12 02:26:28,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-11-12 02:26:28,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:28,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-11-12 02:26:28,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:28,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:28,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:28,379 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 88 flow. Second operand 3 states and 378 transitions. [2023-11-12 02:26:28,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 228 flow [2023-11-12 02:26:28,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:28,382 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 166 flow [2023-11-12 02:26:28,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2023-11-12 02:26:28,383 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-11-12 02:26:28,383 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 166 flow [2023-11-12 02:26:28,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:28,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:28,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:28,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:26:28,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-12 02:26:28,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:28,385 INFO L85 PathProgramCache]: Analyzing trace with hash 592515595, now seen corresponding path program 1 times [2023-11-12 02:26:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:28,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15132646] [2023-11-12 02:26:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:28,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:28,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15132646] [2023-11-12 02:26:28,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15132646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:28,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:28,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:28,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913726874] [2023-11-12 02:26:28,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:28,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:28,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:28,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:28,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:28,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 304 [2023-11-12 02:26:28,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:28,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:28,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 304 [2023-11-12 02:26:28,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:30,192 INFO L124 PetriNetUnfolderBase]: 8995/15101 cut-off events. [2023-11-12 02:26:30,192 INFO L125 PetriNetUnfolderBase]: For 4269/4321 co-relation queries the response was YES. [2023-11-12 02:26:30,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35574 conditions, 15101 events. 8995/15101 cut-off events. For 4269/4321 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 115598 event pairs, 2836 based on Foata normal form. 21/13315 useless extension candidates. Maximal degree in co-relation 35566. Up to 8695 conditions per place. [2023-11-12 02:26:30,336 INFO L140 encePairwiseOnDemand]: 292/304 looper letters, 46 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2023-11-12 02:26:30,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 70 transitions, 360 flow [2023-11-12 02:26:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:30,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-12 02:26:30,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4199561403508772 [2023-11-12 02:26:30,340 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-12 02:26:30,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-12 02:26:30,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:30,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-12 02:26:30,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:30,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:30,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:30,347 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 166 flow. Second operand 3 states and 383 transitions. [2023-11-12 02:26:30,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 70 transitions, 360 flow [2023-11-12 02:26:30,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 70 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:30,713 INFO L231 Difference]: Finished difference. Result has 50 places, 54 transitions, 226 flow [2023-11-12 02:26:30,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=50, PETRI_TRANSITIONS=54} [2023-11-12 02:26:30,715 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -6 predicate places. [2023-11-12 02:26:30,715 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 54 transitions, 226 flow [2023-11-12 02:26:30,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:30,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:30,716 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:30,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:26:30,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-12 02:26:30,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1229667159, now seen corresponding path program 1 times [2023-11-12 02:26:30,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:30,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402655564] [2023-11-12 02:26:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:30,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:30,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:30,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:30,753 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:26:30,753 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-11-12 02:26:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-11-12 02:26:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2023-11-12 02:26:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-11-12 02:26:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-11-12 02:26:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-11-12 02:26:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-11-12 02:26:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2023-11-12 02:26:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-11-12 02:26:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2023-11-12 02:26:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-11-12 02:26:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-11-12 02:26:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-11-12 02:26:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-11-12 02:26:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-11-12 02:26:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-11-12 02:26:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-11-12 02:26:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-11-12 02:26:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-11-12 02:26:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-11-12 02:26:30,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-11-12 02:26:30,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-11-12 02:26:30,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-11-12 02:26:30,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-11-12 02:26:30,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-11-12 02:26:30,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-11-12 02:26:30,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:26:30,761 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:26:30,767 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2023-11-12 02:26:30,767 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:30,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-12 02:26:30,797 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-12 02:26:30,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:30 BasicIcfg [2023-11-12 02:26:30,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:30,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:30,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:30,810 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:30,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:19" (3/4) ... [2023-11-12 02:26:30,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:26:30,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:30,814 INFO L158 Benchmark]: Toolchain (without parser) took 12920.98ms. Allocated memory was 117.4MB in the beginning and 448.8MB in the end (delta: 331.4MB). Free memory was 73.5MB in the beginning and 219.5MB in the end (delta: -146.0MB). Peak memory consumption was 186.3MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,815 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:30,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.49ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 53.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.49ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,816 INFO L158 Benchmark]: Boogie Preprocessor took 32.16ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 50.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,816 INFO L158 Benchmark]: RCFGBuilder took 518.20ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 80.7MB in the end (delta: -30.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,817 INFO L158 Benchmark]: TraceAbstraction took 11680.38ms. Allocated memory was 117.4MB in the beginning and 448.8MB in the end (delta: 331.4MB). Free memory was 80.2MB in the beginning and 219.5MB in the end (delta: -139.3MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:30,817 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 448.8MB. Free memory is still 219.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:30,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.49ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 53.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.49ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.16ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 50.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 518.20ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 80.7MB in the end (delta: -30.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11680.38ms. Allocated memory was 117.4MB in the beginning and 448.8MB in the end (delta: 331.4MB). Free memory was 80.2MB in the beginning and 219.5MB in the end (delta: -139.3MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 448.8MB. Free memory is still 219.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 83 PlacesBefore, 17 PlacesAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 10 ConcurrentYvCompositions, 4 ChoiceCompositions, 96 TotalNumberOfCompositions, 948 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 948, independent: 948, independent conditional: 0, independent unconditional: 948, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 613, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 948, independent: 335, independent conditional: 0, independent unconditional: 335, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 613, unknown conditional: 0, unknown unconditional: 613] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 117 PlacesBefore, 40 PlacesAfterwards, 118 TransitionsBefore, 37 TransitionsAfterwards, 4620 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 122 TotalNumberOfCompositions, 10617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5476, independent: 5227, independent conditional: 0, independent unconditional: 5227, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2562, independent: 2508, independent conditional: 0, independent unconditional: 2508, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5476, independent: 2719, independent conditional: 0, independent unconditional: 2719, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 2562, unknown conditional: 0, unknown unconditional: 2562] , Statistics on independence cache: Total cache size (in pairs): 136, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 151 PlacesBefore, 56 PlacesAfterwards, 152 TransitionsBefore, 52 TransitionsAfterwards, 10296 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 152 TotalNumberOfCompositions, 25655 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11116, independent: 10752, independent conditional: 0, independent unconditional: 10752, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5555, independent: 5489, independent conditional: 0, independent unconditional: 5489, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11116, independent: 5263, independent conditional: 0, independent unconditional: 5263, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 5555, unknown conditional: 0, unknown unconditional: 5555] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 191, Positive conditional cache size: 0, Positive unconditional cache size: 191, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 711]: Data race detected [2023-11-12 02:26:30,841 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-12 02:26:30,842 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-12 02:26:30,856 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-12 02:26:30,857 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated Data race detected The following path leads to a data race: [L697] 0 volatile int s; [L698] 0 volatile int t; [L716] 0 pthread_t t; [L717] 0 int i, n; [L718] 0 s = 0 [L719] 0 n = __VERIFIER_nondet_int() [L720] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) [L720] RET 0 assume_abort_if_not(n > 0) [L721] 0 i = 0 VAL [i=0, n=2, s=0, t=0, t={3:0}] [L721] COND TRUE 0 i < n [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=0, n=2, s=0, t=0, t={3:0}] [L721] 0 i++ VAL [i=1, n=2, s=0, t=0, t={3:0}] [L721] COND TRUE 0 i < n [L710] CALL 1 inct() [L701] 1 t++ [L710] RET 1 inct() [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=1, n=2, s=0, t=1, t={3:0}] [L711] 1 s < t VAL [arg={0:0}, arg={0:0}, s=0, t=1] [L710] CALL 2 inct() [L701] 2 t++ [L710] RET 2 inct() [L711] 1 s < t VAL [arg={0:0}, arg={0:0}, s=0, t=2] Now there is a data race on ~t~0 between C: t++ [701] and C: s < t [711] - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 113 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 145 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 13 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 177 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 10 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:26:30,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7059836-6182-4b8f-a663-c1049e34058d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE