./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:01,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:01,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:53:01,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:01,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:01,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:01,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:01,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:01,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:01,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:01,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:01,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:01,579 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:01,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:01,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:01,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:01,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:01,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:01,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:01,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:01,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:01,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:01,585 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:53:01,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:01,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:01,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:01,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:01,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:01,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:01,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:01,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:01,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:01,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:01,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:01,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:01,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:01,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:01,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:01,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:01,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:01,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:01,593 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_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2023-11-26 11:53:01,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:01,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:01,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:01,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:01,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:01,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2023-11-26 11:53:05,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:05,687 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:05,688 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2023-11-26 11:53:05,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/data/9eb6750aa/2ddff8bfac7f47ee8b5fff8c77b40fb3/FLAGf9807a761 [2023-11-26 11:53:05,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/data/9eb6750aa/2ddff8bfac7f47ee8b5fff8c77b40fb3 [2023-11-26 11:53:05,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:05,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:05,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:05,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:05,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:05,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:05" (1/1) ... [2023-11-26 11:53:05,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53eed5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:05, skipping insertion in model container [2023-11-26 11:53:05,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:05" (1/1) ... [2023-11-26 11:53:05,798 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:06,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:06,411 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:06,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:06,595 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:06,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06 WrapperNode [2023-11-26 11:53:06,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:06,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:06,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:06,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:06,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,795 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 910 [2023-11-26 11:53:06,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:06,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:53:06,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:53:06,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:53:06,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:53:06,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:53:06,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:53:06,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:53:06,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (1/1) ... [2023-11-26 11:53:06,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:06,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:07,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:53:07,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee5df15-6945-4768-b7bc-651861b2b907/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:53:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:53:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:53:07,048 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:53:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-26 11:53:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-26 11:53:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:53:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:53:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:53:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:53:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:53:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:53:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:53:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:53:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:53:07,055 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:53:07,324 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:53:07,327 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:53:08,785 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:53:08,832 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:53:08,832 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-26 11:53:08,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:08 BoogieIcfgContainer [2023-11-26 11:53:08,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:53:08,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:53:08,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:53:08,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:53:08,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:05" (1/3) ... [2023-11-26 11:53:08,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c5c82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:08, skipping insertion in model container [2023-11-26 11:53:08,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:06" (2/3) ... [2023-11-26 11:53:08,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c5c82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:08, skipping insertion in model container [2023-11-26 11:53:08,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:08" (3/3) ... [2023-11-26 11:53:08,843 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2023-11-26 11:53:08,852 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:53:08,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:53:08,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2023-11-26 11:53:08,864 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:53:09,109 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 11:53:09,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 972 places, 1058 transitions, 2123 flow [2023-11-26 11:53:10,141 INFO L124 PetriNetUnfolderBase]: 135/1563 cut-off events. [2023-11-26 11:53:10,142 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:53:10,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1563 events. 135/1563 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5904 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 945. Up to 4 conditions per place. [2023-11-26 11:53:10,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 972 places, 1058 transitions, 2123 flow [2023-11-26 11:53:10,282 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 972 places, 1058 transitions, 2123 flow [2023-11-26 11:53:10,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:53:10,299 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;@b2f62f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:53:10,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2023-11-26 11:53:10,308 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:53:10,308 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2023-11-26 11:53:10,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:53:10,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:10,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:10,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-26 11:53:10,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash 322890383, now seen corresponding path program 1 times [2023-11-26 11:53:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:10,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099834323] [2023-11-26 11:53:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:10,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:11,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:11,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099834323] [2023-11-26 11:53:11,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099834323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:11,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:11,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:11,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114059585] [2023-11-26 11:53:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:11,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:11,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:11,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:13,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 755 out of 1058 [2023-11-26 11:53:13,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 1058 transitions, 2123 flow. Second operand has 6 states, 6 states have (on average 756.5) internal successors, (4539), 6 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:13,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:13,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 755 of 1058 [2023-11-26 11:53:13,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:28,631 INFO L124 PetriNetUnfolderBase]: 12308/58173 cut-off events. [2023-11-26 11:53:28,631 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:53:28,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80782 conditions, 58173 events. 12308/58173 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 677024 event pairs, 11009 based on Foata normal form. 6980/58211 useless extension candidates. Maximal degree in co-relation 80098. Up to 22599 conditions per place. [2023-11-26 11:53:29,024 INFO L140 encePairwiseOnDemand]: 982/1058 looper letters, 227 selfloop transitions, 5 changer transitions 3/933 dead transitions. [2023-11-26 11:53:29,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 922 places, 933 transitions, 2337 flow [2023-11-26 11:53:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:29,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4833 transitions. [2023-11-26 11:53:29,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7613421550094518 [2023-11-26 11:53:29,066 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4833 transitions. [2023-11-26 11:53:29,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4833 transitions. [2023-11-26 11:53:29,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:29,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4833 transitions. [2023-11-26 11:53:29,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 805.5) internal successors, (4833), 6 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1058.0) internal successors, (7406), 7 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1058.0) internal successors, (7406), 7 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,136 INFO L175 Difference]: Start difference. First operand has 972 places, 1058 transitions, 2123 flow. Second operand 6 states and 4833 transitions. [2023-11-26 11:53:29,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 922 places, 933 transitions, 2337 flow [2023-11-26 11:53:29,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 922 places, 933 transitions, 2337 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:53:29,178 INFO L231 Difference]: Finished difference. Result has 922 places, 930 transitions, 1877 flow [2023-11-26 11:53:29,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1058, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=917, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1877, PETRI_PLACES=922, PETRI_TRANSITIONS=930} [2023-11-26 11:53:29,187 INFO L281 CegarLoopForPetriNet]: 972 programPoint places, -50 predicate places. [2023-11-26 11:53:29,187 INFO L495 AbstractCegarLoop]: Abstraction has has 922 places, 930 transitions, 1877 flow [2023-11-26 11:53:29,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 756.5) internal successors, (4539), 6 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:29,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:29,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:53:29,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-26 11:53:29,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1476023321, now seen corresponding path program 1 times [2023-11-26 11:53:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:29,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600616567] [2023-11-26 11:53:29,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:29,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600616567] [2023-11-26 11:53:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600616567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:53:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496954526] [2023-11-26 11:53:29,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:29,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:29,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:29,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:29,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 960 out of 1058 [2023-11-26 11:53:29,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 922 places, 930 transitions, 1877 flow. Second operand has 3 states, 3 states have (on average 961.3333333333334) internal successors, (2884), 3 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:29,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 960 of 1058 [2023-11-26 11:53:29,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:30,832 INFO L124 PetriNetUnfolderBase]: 243/4783 cut-off events. [2023-11-26 11:53:30,832 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:53:30,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 4783 events. 243/4783 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36454 event pairs, 110 based on Foata normal form. 1/4130 useless extension candidates. Maximal degree in co-relation 5013. Up to 302 conditions per place. [2023-11-26 11:53:30,891 INFO L140 encePairwiseOnDemand]: 1055/1058 looper letters, 27 selfloop transitions, 2 changer transitions 0/931 dead transitions. [2023-11-26 11:53:30,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 931 transitions, 1937 flow [2023-11-26 11:53:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2910 transitions. [2023-11-26 11:53:30,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9168241965973535 [2023-11-26 11:53:30,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2910 transitions. [2023-11-26 11:53:30,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2910 transitions. [2023-11-26 11:53:30,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:30,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2910 transitions. [2023-11-26 11:53:30,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 970.0) internal successors, (2910), 3 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:30,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1058.0) internal successors, (4232), 4 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:30,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1058.0) internal successors, (4232), 4 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:30,930 INFO L175 Difference]: Start difference. First operand has 922 places, 930 transitions, 1877 flow. Second operand 3 states and 2910 transitions. [2023-11-26 11:53:30,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 931 transitions, 1937 flow [2023-11-26 11:53:30,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 916 places, 931 transitions, 1927 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:53:30,954 INFO L231 Difference]: Finished difference. Result has 917 places, 931 transitions, 1879 flow [2023-11-26 11:53:30,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1058, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1879, PETRI_PLACES=917, PETRI_TRANSITIONS=931} [2023-11-26 11:53:30,957 INFO L281 CegarLoopForPetriNet]: 972 programPoint places, -55 predicate places. [2023-11-26 11:53:30,957 INFO L495 AbstractCegarLoop]: Abstraction has has 917 places, 931 transitions, 1879 flow [2023-11-26 11:53:30,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 961.3333333333334) internal successors, (2884), 3 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:30,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:30,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:30,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:53:30,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-26 11:53:30,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2100024491, now seen corresponding path program 1 times [2023-11-26 11:53:30,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:30,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821592814] [2023-11-26 11:53:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:30,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:31,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:31,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821592814] [2023-11-26 11:53:31,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821592814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:31,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:31,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:31,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187360548] [2023-11-26 11:53:31,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:31,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:31,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:31,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:31,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:33,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 755 out of 1058 [2023-11-26 11:53:33,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 917 places, 931 transitions, 1879 flow. Second operand has 6 states, 6 states have (on average 756.5) internal successors, (4539), 6 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:33,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 755 of 1058 [2023-11-26 11:53:33,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:49,986 INFO L124 PetriNetUnfolderBase]: 12308/58197 cut-off events. [2023-11-26 11:53:49,987 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:53:50,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80821 conditions, 58197 events. 12308/58197 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 677173 event pairs, 11009 based on Foata normal form. 0/51257 useless extension candidates. Maximal degree in co-relation 80737. Up to 22602 conditions per place. [2023-11-26 11:53:50,519 INFO L140 encePairwiseOnDemand]: 1052/1058 looper letters, 228 selfloop transitions, 5 changer transitions 0/930 dead transitions. [2023-11-26 11:53:50,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 930 transitions, 2343 flow [2023-11-26 11:53:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4763 transitions. [2023-11-26 11:53:50,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7503150598613737 [2023-11-26 11:53:50,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4763 transitions. [2023-11-26 11:53:50,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4763 transitions. [2023-11-26 11:53:50,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:50,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4763 transitions. [2023-11-26 11:53:50,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 793.8333333333334) internal successors, (4763), 6 states have internal predecessors, (4763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:50,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1058.0) internal successors, (7406), 7 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:50,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1058.0) internal successors, (7406), 7 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:50,601 INFO L175 Difference]: Start difference. First operand has 917 places, 931 transitions, 1879 flow. Second operand 6 states and 4763 transitions. [2023-11-26 11:53:50,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 930 transitions, 2343 flow [2023-11-26 11:53:50,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 930 transitions, 2341 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:53:50,629 INFO L231 Difference]: Finished difference. Result has 920 places, 930 transitions, 1885 flow [2023-11-26 11:53:50,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1058, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=915, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=925, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=920, PETRI_TRANSITIONS=930} [2023-11-26 11:53:50,634 INFO L281 CegarLoopForPetriNet]: 972 programPoint places, -52 predicate places. [2023-11-26 11:53:50,634 INFO L495 AbstractCegarLoop]: Abstraction has has 920 places, 930 transitions, 1885 flow [2023-11-26 11:53:50,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 756.5) internal successors, (4539), 6 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:50,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:50,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:50,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:53:50,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-26 11:53:50,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -715253264, now seen corresponding path program 1 times [2023-11-26 11:53:50,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:50,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708693988] [2023-11-26 11:53:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:51,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708693988] [2023-11-26 11:53:51,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708693988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:51,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:51,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:51,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198028682] [2023-11-26 11:53:51,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:51,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:51,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:51,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:53,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 755 out of 1058 [2023-11-26 11:53:53,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 920 places, 930 transitions, 1885 flow. Second operand has 6 states, 6 states have (on average 756.5) internal successors, (4539), 6 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:53,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:53,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 755 of 1058 [2023-11-26 11:53:53,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand