./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-10-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/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_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-10-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/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_27d58056-39ff-4c17-838e-2e5b2d7fb273/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 a48fe857d08ac3a4ba438de35e4bd3e7e5363b4267f7ed4ba2475f684ca08cd5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:49,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:49,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:30:49,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:49,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:49,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:49,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:49,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:49,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:49,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:49,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:49,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:49,639 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:49,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:49,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:30:49,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:49,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:49,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:49,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:49,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:30:49,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:49,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:30:49,649 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:30:49,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:49,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:49,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:30:49,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:49,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:49,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:49,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:49,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:49,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:49,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:49,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:30:49,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:49,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:49,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:49,662 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:30:49,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:49,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:49,663 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:49,664 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_27d58056-39ff-4c17-838e-2e5b2d7fb273/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a48fe857d08ac3a4ba438de35e4bd3e7e5363b4267f7ed4ba2475f684ca08cd5 [2023-11-12 02:30:49,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:50,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:50,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:50,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:50,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:50,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/fib_safe-10-racy.i [2023-11-12 02:30:53,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:53,692 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:53,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/sv-benchmarks/c/pthread/fib_safe-10-racy.i [2023-11-12 02:30:53,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/data/257a90212/a685b14350f04436b626e8394490dd9f/FLAG43380e89a [2023-11-12 02:30:53,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/data/257a90212/a685b14350f04436b626e8394490dd9f [2023-11-12 02:30:53,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:53,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:53,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:53,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:53,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:53,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:53" (1/1) ... [2023-11-12 02:30:53,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae4e652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:53, skipping insertion in model container [2023-11-12 02:30:53,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:53" (1/1) ... [2023-11-12 02:30:53,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:54,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:54,373 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:54,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:54,479 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:54,479 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:54,488 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:54,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54 WrapperNode [2023-11-12 02:30:54,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:54,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:54,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:54,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:54,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,576 INFO L138 Inliner]: procedures = 164, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2023-11-12 02:30:54,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:54,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:54,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:54,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:54,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:54,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:54,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:54,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:54,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (1/1) ... [2023-11-12 02:30:54,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:54,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:54,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:54,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-12 02:30:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-12 02:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-12 02:30:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-12 02:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:54,765 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 02:30:55,009 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:55,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:55,483 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:55,581 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:55,581 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:30:55,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:55 BoogieIcfgContainer [2023-11-12 02:30:55,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:55,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:55,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:55,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:55,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:53" (1/3) ... [2023-11-12 02:30:55,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0a722e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:55, skipping insertion in model container [2023-11-12 02:30:55,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:54" (2/3) ... [2023-11-12 02:30:55,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0a722e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:55, skipping insertion in model container [2023-11-12 02:30:55,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:55" (3/3) ... [2023-11-12 02:30:55,600 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-10-racy.i [2023-11-12 02:30:55,611 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:30:55,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:55,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-12 02:30:55,627 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:30:55,725 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:30:55,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 194 transitions, 396 flow [2023-11-12 02:30:55,872 INFO L124 PetriNetUnfolderBase]: 9/192 cut-off events. [2023-11-12 02:30:55,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:55,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 192 events. 9/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 393 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-11-12 02:30:55,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 194 transitions, 396 flow [2023-11-12 02:30:55,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 192 transitions, 390 flow [2023-11-12 02:30:55,906 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:30:55,926 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 192 transitions, 390 flow [2023-11-12 02:30:55,932 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 192 transitions, 390 flow [2023-11-12 02:30:55,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 192 transitions, 390 flow [2023-11-12 02:30:56,055 INFO L124 PetriNetUnfolderBase]: 9/192 cut-off events. [2023-11-12 02:30:56,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:56,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 192 events. 9/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 393 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-11-12 02:30:56,075 INFO L119 LiptonReduction]: Number of co-enabled transitions 13680 [2023-11-12 02:31:01,175 INFO L134 LiptonReduction]: Checked pairs total: 15669 [2023-11-12 02:31:01,176 INFO L136 LiptonReduction]: Total number of compositions: 223 [2023-11-12 02:31:01,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:01,203 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;@f130382, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:01,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-11-12 02:31:01,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:31:01,207 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:31:01,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:01,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:01,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:31:01,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:01,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash 794, now seen corresponding path program 1 times [2023-11-12 02:31:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:01,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450158279] [2023-11-12 02:31:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:01,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:01,351 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 02:31:01,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:01,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450158279] [2023-11-12 02:31:01,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450158279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:01,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:01,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:31:01,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526865064] [2023-11-12 02:31:01,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:01,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:31:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:31:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:31:01,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 417 [2023-11-12 02:31:01,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 104 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 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 02:31:01,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:01,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 417 [2023-11-12 02:31:01,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:01,469 INFO L124 PetriNetUnfolderBase]: 97/179 cut-off events. [2023-11-12 02:31:01,469 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:31:01,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 179 events. 97/179 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 520 event pairs, 56 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 330. Up to 150 conditions per place. [2023-11-12 02:31:01,472 INFO L140 encePairwiseOnDemand]: 388/417 looper letters, 14 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-11-12 02:31:01,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 76 flow [2023-11-12 02:31:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:31:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:31:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2023-11-12 02:31:01,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47002398081534774 [2023-11-12 02:31:01,492 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2023-11-12 02:31:01,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2023-11-12 02:31:01,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:01,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2023-11-12 02:31:01,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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 02:31:01,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 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 02:31:01,510 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 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 02:31:01,512 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 104 flow. Second operand 2 states and 392 transitions. [2023-11-12 02:31:01,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 76 flow [2023-11-12 02:31:01,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:31:01,518 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2023-11-12 02:31:01,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-11-12 02:31:01,524 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -29 predicate places. [2023-11-12 02:31:01,524 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2023-11-12 02:31:01,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 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 02:31:01,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:01,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:01,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:31:01,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:01,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1206380540, now seen corresponding path program 1 times [2023-11-12 02:31:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:01,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984510675] [2023-11-12 02:31:01,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:01,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:01,729 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 02:31:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:01,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984510675] [2023-11-12 02:31:01,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984510675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:01,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:01,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:01,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128258549] [2023-11-12 02:31:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:01,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:01,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 417 [2023-11-12 02:31:01,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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 02:31:01,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:01,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 417 [2023-11-12 02:31:01,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:01,807 INFO L124 PetriNetUnfolderBase]: 97/194 cut-off events. [2023-11-12 02:31:01,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:01,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 194 events. 97/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 614 event pairs, 20 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 351. Up to 91 conditions per place. [2023-11-12 02:31:01,810 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-11-12 02:31:01,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 98 flow [2023-11-12 02:31:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:31:01,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2023-11-12 02:31:01,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42525979216626697 [2023-11-12 02:31:01,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2023-11-12 02:31:01,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2023-11-12 02:31:01,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:01,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2023-11-12 02:31:01,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 02:31:01,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 02:31:01,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 02:31:01,826 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 532 transitions. [2023-11-12 02:31:01,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 98 flow [2023-11-12 02:31:01,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:31:01,828 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 54 flow [2023-11-12 02:31:01,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-11-12 02:31:01,830 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -27 predicate places. [2023-11-12 02:31:01,830 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 54 flow [2023-11-12 02:31:01,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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 02:31:01,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:01,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:01,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:31:01,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:01,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:01,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1256875724, now seen corresponding path program 1 times [2023-11-12 02:31:01,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757162290] [2023-11-12 02:31:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:01,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:02,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:02,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757162290] [2023-11-12 02:31:02,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757162290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:02,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95994412] [2023-11-12 02:31:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:02,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:02,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:02,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:02,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:31:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:02,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:02,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:31:02,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95994412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:02,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:02,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 02:31:02,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107399968] [2023-11-12 02:31:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:02,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:02,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:02,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:02,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:02,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 417 [2023-11-12 02:31:02,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:31:02,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:02,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 417 [2023-11-12 02:31:02,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:02,301 INFO L124 PetriNetUnfolderBase]: 203/337 cut-off events. [2023-11-12 02:31:02,301 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-12 02:31:02,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 337 events. 203/337 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1094 event pairs, 51 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 716. Up to 156 conditions per place. [2023-11-12 02:31:02,305 INFO L140 encePairwiseOnDemand]: 412/417 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-11-12 02:31:02,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 143 flow [2023-11-12 02:31:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:31:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2023-11-12 02:31:02,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324540367705835 [2023-11-12 02:31:02,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2023-11-12 02:31:02,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2023-11-12 02:31:02,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:02,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2023-11-12 02:31:02,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 02:31:02,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 02:31:02,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 417.0) internal successors, (1668), 4 states have internal predecessors, (1668), 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 02:31:02,319 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 54 flow. Second operand 3 states and 541 transitions. [2023-11-12 02:31:02,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 143 flow [2023-11-12 02:31:02,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:31:02,321 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 88 flow [2023-11-12 02:31:02,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-11-12 02:31:02,322 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-11-12 02:31:02,323 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 88 flow [2023-11-12 02:31:02,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:31:02,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:02,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:02,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:02,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:02,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 574303849, now seen corresponding path program 1 times [2023-11-12 02:31:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:02,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955877724] [2023-11-12 02:31:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955877724] [2023-11-12 02:31:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955877724] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565454063] [2023-11-12 02:31:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:02,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:02,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:02,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:31:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:02,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:02,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:02,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:31:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:02,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565454063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:31:02,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:31:02,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-12 02:31:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999258789] [2023-11-12 02:31:02,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:31:02,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:31:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:31:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:31:02,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-12 02:31:02,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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 02:31:02,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:02,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-12 02:31:02,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:03,049 INFO L124 PetriNetUnfolderBase]: 271/447 cut-off events. [2023-11-12 02:31:03,049 INFO L125 PetriNetUnfolderBase]: For 196/199 co-relation queries the response was YES. [2023-11-12 02:31:03,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 447 events. 271/447 cut-off events. For 196/199 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1429 event pairs, 42 based on Foata normal form. 45/479 useless extension candidates. Maximal degree in co-relation 1152. Up to 182 conditions per place. [2023-11-12 02:31:03,055 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 48 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-11-12 02:31:03,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 59 transitions, 318 flow [2023-11-12 02:31:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:31:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2023-11-12 02:31:03,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42326139088729015 [2023-11-12 02:31:03,061 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2023-11-12 02:31:03,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2023-11-12 02:31:03,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:03,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2023-11-12 02:31:03,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 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 02:31:03,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 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 02:31:03,077 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 417.0) internal successors, (2919), 7 states have internal predecessors, (2919), 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 02:31:03,077 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 88 flow. Second operand 6 states and 1059 transitions. [2023-11-12 02:31:03,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 59 transitions, 318 flow [2023-11-12 02:31:03,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 59 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:31:03,082 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 122 flow [2023-11-12 02:31:03,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-11-12 02:31:03,083 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-11-12 02:31:03,083 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 122 flow [2023-11-12 02:31:03,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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 02:31:03,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:03,085 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:03,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:03,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:03,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:03,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1378790165, now seen corresponding path program 2 times [2023-11-12 02:31:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:03,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031780827] [2023-11-12 02:31:03,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:03,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031780827] [2023-11-12 02:31:03,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031780827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:03,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803645743] [2023-11-12 02:31:03,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:31:03,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:03,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:03,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:03,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:31:03,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:31:03,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:31:03,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:31:03,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:03,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:31:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:03,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803645743] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:31:03,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:31:03,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-12 02:31:03,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915079652] [2023-11-12 02:31:03,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:31:03,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:31:03,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:03,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:31:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:31:03,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-12 02:31:03,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 122 flow. Second operand has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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 02:31:03,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:03,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-12 02:31:03,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:04,093 INFO L124 PetriNetUnfolderBase]: 451/717 cut-off events. [2023-11-12 02:31:04,093 INFO L125 PetriNetUnfolderBase]: For 806/809 co-relation queries the response was YES. [2023-11-12 02:31:04,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 717 events. 451/717 cut-off events. For 806/809 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2224 event pairs, 42 based on Foata normal form. 90/791 useless extension candidates. Maximal degree in co-relation 2043. Up to 182 conditions per place. [2023-11-12 02:31:04,102 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 96 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2023-11-12 02:31:04,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 113 transitions, 612 flow [2023-11-12 02:31:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:31:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:31:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2023-11-12 02:31:04,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42326139088729015 [2023-11-12 02:31:04,111 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2023-11-12 02:31:04,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2023-11-12 02:31:04,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:04,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2023-11-12 02:31:04,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 176.5) internal successors, (2118), 12 states have internal predecessors, (2118), 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 02:31:04,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 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 02:31:04,139 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 417.0) internal successors, (5421), 13 states have internal predecessors, (5421), 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 02:31:04,139 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 122 flow. Second operand 12 states and 2118 transitions. [2023-11-12 02:31:04,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 113 transitions, 612 flow [2023-11-12 02:31:04,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 113 transitions, 598 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-12 02:31:04,153 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 204 flow [2023-11-12 02:31:04,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=204, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2023-11-12 02:31:04,156 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-11-12 02:31:04,157 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 204 flow [2023-11-12 02:31:04,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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 02:31:04,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:04,159 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:04,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:04,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:04,367 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:04,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1865923541, now seen corresponding path program 3 times [2023-11-12 02:31:04,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257046125] [2023-11-12 02:31:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:04,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257046125] [2023-11-12 02:31:04,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257046125] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133609054] [2023-11-12 02:31:04,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:31:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:04,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:04,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:31:04,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-12 02:31:04,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:31:04,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:31:04,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:04,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:31:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:05,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133609054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:31:05,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:31:05,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-12 02:31:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61727546] [2023-11-12 02:31:05,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:31:05,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-12 02:31:05,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-12 02:31:05,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-12 02:31:05,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 417 [2023-11-12 02:31:05,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 204 flow. Second operand has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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 02:31:05,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:05,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 417 [2023-11-12 02:31:05,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:05,864 INFO L124 PetriNetUnfolderBase]: 811/1257 cut-off events. [2023-11-12 02:31:05,864 INFO L125 PetriNetUnfolderBase]: For 9038/9041 co-relation queries the response was YES. [2023-11-12 02:31:05,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 1257 events. 811/1257 cut-off events. For 9038/9041 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3811 event pairs, 42 based on Foata normal form. 180/1421 useless extension candidates. Maximal degree in co-relation 4050. Up to 316 conditions per place. [2023-11-12 02:31:05,880 INFO L140 encePairwiseOnDemand]: 414/417 looper letters, 192 selfloop transitions, 23 changer transitions 0/221 dead transitions. [2023-11-12 02:31:05,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 221 transitions, 1258 flow [2023-11-12 02:31:05,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 02:31:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-12 02:31:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2023-11-12 02:31:05,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42326139088729015 [2023-11-12 02:31:05,900 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2023-11-12 02:31:05,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2023-11-12 02:31:05,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:05,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2023-11-12 02:31:05,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 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 02:31:05,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 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 02:31:05,940 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 417.0) internal successors, (10425), 25 states have internal predecessors, (10425), 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 02:31:05,940 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 204 flow. Second operand 24 states and 4236 transitions. [2023-11-12 02:31:05,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 221 transitions, 1258 flow [2023-11-12 02:31:05,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 221 transitions, 1186 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-11-12 02:31:05,953 INFO L231 Difference]: Finished difference. Result has 80 places, 45 transitions, 348 flow [2023-11-12 02:31:05,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=417, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=348, PETRI_PLACES=80, PETRI_TRANSITIONS=45} [2023-11-12 02:31:05,954 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2023-11-12 02:31:05,954 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 45 transitions, 348 flow [2023-11-12 02:31:05,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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 02:31:05,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:05,957 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:05,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:06,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:31:06,169 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2023-11-12 02:31:06,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 602460843, now seen corresponding path program 4 times [2023-11-12 02:31:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:06,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249639002] [2023-11-12 02:31:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:06,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:06,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:31:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:06,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:31:06,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:31:06,357 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-11-12 02:31:06,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-11-12 02:31:06,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-11-12 02:31:06,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-11-12 02:31:06,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-11-12 02:31:06,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-11-12 02:31:06,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-11-12 02:31:06,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-11-12 02:31:06,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-11-12 02:31:06,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-11-12 02:31:06,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-11-12 02:31:06,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-11-12 02:31:06,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-11-12 02:31:06,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-11-12 02:31:06,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-11-12 02:31:06,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-11-12 02:31:06,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2023-11-12 02:31:06,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2023-11-12 02:31:06,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-11-12 02:31:06,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-11-12 02:31:06,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-11-12 02:31:06,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-11-12 02:31:06,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-11-12 02:31:06,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-11-12 02:31:06,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-11-12 02:31:06,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2023-11-12 02:31:06,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2023-11-12 02:31:06,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-11-12 02:31:06,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-11-12 02:31:06,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-11-12 02:31:06,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-11-12 02:31:06,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-11-12 02:31:06,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-11-12 02:31:06,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-11-12 02:31:06,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-11-12 02:31:06,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-11-12 02:31:06,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-11-12 02:31:06,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-11-12 02:31:06,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-11-12 02:31:06,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-11-12 02:31:06,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-11-12 02:31:06,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-11-12 02:31:06,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-11-12 02:31:06,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-11-12 02:31:06,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-11-12 02:31:06,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-11-12 02:31:06,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:31:06,371 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-11-12 02:31:06,378 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:31:06,378 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:06,481 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 02:31:06,484 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-12 02:31:06,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:06 BasicIcfg [2023-11-12 02:31:06,532 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:06,533 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:06,533 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:06,533 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:06,534 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:55" (3/4) ... [2023-11-12 02:31:06,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:31:06,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:06,538 INFO L158 Benchmark]: Toolchain (without parser) took 12778.88ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 108.7MB in the beginning and 88.8MB in the end (delta: 19.9MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,539 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:06,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.87ms. Allocated memory is still 136.3MB. Free memory was 108.7MB in the beginning and 88.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.59ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,540 INFO L158 Benchmark]: Boogie Preprocessor took 76.50ms. Allocated memory is still 136.3MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,544 INFO L158 Benchmark]: RCFGBuilder took 930.15ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 62.8MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,544 INFO L158 Benchmark]: TraceAbstraction took 10944.04ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 62.2MB in the beginning and 88.8MB in the end (delta: -26.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-12 02:31:06,545 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 201.3MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:06,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.87ms. Allocated memory is still 136.3MB. Free memory was 108.7MB in the beginning and 88.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.59ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.50ms. Allocated memory is still 136.3MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 930.15ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 62.8MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10944.04ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 62.2MB in the beginning and 88.8MB in the end (delta: -26.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 201.3MB. Free memory is still 88.8MB. 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~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre19 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: 5.2s, 190 PlacesBefore, 52 PlacesAfterwards, 192 TransitionsBefore, 49 TransitionsAfterwards, 13680 CoEnabledTransitionPairs, 8 FixpointIterations, 31 TrivialSequentialCompositions, 171 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 5 ChoiceCompositions, 223 TotalNumberOfCompositions, 15669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12297, independent: 12161, independent conditional: 0, independent unconditional: 12161, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7416, independent: 7373, independent conditional: 0, independent unconditional: 7373, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12297, independent: 4788, independent conditional: 0, independent unconditional: 4788, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 7416, unknown conditional: 0, unknown unconditional: 7416] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 725]: Data race detected [2023-11-12 02:31:06,588 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 02:31:06,591 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated [2023-11-12 02:31:06,637 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-12 02:31:06,637 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre19 could not be translated Data race detected The following path leads to a data race: [L683] 0 int i, j; [L686] 0 int p, q; [L703] 0 int cur = 1, prev = 0, next = 0; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=28661, arg={0:0}, argc=28661, argv={28659:28660}, argv={28659:28660}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=28661, arg={0:0}, arg={0:0}, arg={0:0}, argc=28661, argv={28659:28660}, argv={28659:28660}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L706] 0 x < 22 [L706] COND FALSE 0 !(x < 22) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=28661, arg={0:0}, arg={0:0}, arg={0:0}, argc=28661, argv={28659:28660}, argv={28659:28660}, correct=17711, cur=28657, i=1, id1={3:0}, id2={5:0}, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L688] 1 p < 10 [L688] COND TRUE 1 p < 10 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=2, j=1, next=28657, p=1, prev=17711, q=0, x=22] [L725] 0 i <= correct VAL [\old(argc)=28661, arg={0:0}, arg={0:0}, arg={0:0}, argc=28661, argv={28659:28660}, argv={28659:28660}, correct=17711, cur=28657, i=2, id1={3:0}, id2={5:0}, j=1, next=28657, p=1, prev=17711, q=0, x=22] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: 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. - 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: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: 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. - UnprovableResult [Line: 721]: 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: 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: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: 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 5 procedures, 246 locations, 46 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: 10.6s, OverallIterations: 7, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 699 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 677 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 4 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=6, InterpolantAutomatonStates: 50, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 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 02:31:06,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d58056-39ff-4c17-838e-2e5b2d7fb273/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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