./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:31,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:31,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:44:31,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:31,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:31,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:31,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:31,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:31,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:31,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:31,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:31,547 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:31,547 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:31,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:31,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:31,549 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:31,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:31,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:31,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:31,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:31,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:31,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:31,554 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:44:31,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:44:31,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:31,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:31,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:31,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:31,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:31,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:31,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:31,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:31,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:31,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:31,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:31,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:31,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:31,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:31,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:31,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:31,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:31,562 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_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2023-11-26 11:44:31,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:31,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:31,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:31,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:31,912 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:31,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-divine/condvar.i [2023-11-26 11:44:35,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:35,391 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:35,397 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/sv-benchmarks/c/pthread-divine/condvar.i [2023-11-26 11:44:35,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/data/311cde21b/634d6f76ddc24637adeaf40791410a00/FLAG034174a42 [2023-11-26 11:44:35,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/data/311cde21b/634d6f76ddc24637adeaf40791410a00 [2023-11-26 11:44:35,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:35,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:35,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:35,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:35,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:35,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:35" (1/1) ... [2023-11-26 11:44:35,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ea296a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:35, skipping insertion in model container [2023-11-26 11:44:35,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:35" (1/1) ... [2023-11-26 11:44:35,752 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:36,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:36,228 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:36,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:36,370 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:36,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36 WrapperNode [2023-11-26 11:44:36,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:36,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:36,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:36,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:36,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,419 INFO L138 Inliner]: procedures = 169, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2023-11-26 11:44:36,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:36,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:36,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:36,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:36,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:36,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:36,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:36,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:36,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (1/1) ... [2023-11-26 11:44:36,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:36,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:36,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:36,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:44:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:44:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:44:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:44:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-26 11:44:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-26 11:44:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:44:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:36,539 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:44:36,684 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:36,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:36,917 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:36,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:36,968 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:44:36,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:36 BoogieIcfgContainer [2023-11-26 11:44:36,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:36,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:36,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:36,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:36,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:35" (1/3) ... [2023-11-26 11:44:36,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238721e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:36, skipping insertion in model container [2023-11-26 11:44:36,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:36" (2/3) ... [2023-11-26 11:44:36,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238721e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:36, skipping insertion in model container [2023-11-26 11:44:36,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:36" (3/3) ... [2023-11-26 11:44:36,987 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2023-11-26 11:44:36,998 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:44:37,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:37,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-26 11:44:37,013 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:44:37,105 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 11:44:37,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 213 flow [2023-11-26 11:44:37,204 INFO L124 PetriNetUnfolderBase]: 6/102 cut-off events. [2023-11-26 11:44:37,204 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:44:37,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 6/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 153 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-26 11:44:37,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 103 transitions, 213 flow [2023-11-26 11:44:37,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 95 transitions, 193 flow [2023-11-26 11:44:37,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:37,255 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;@72a3bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:37,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 11:44:37,276 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:37,277 INFO L124 PetriNetUnfolderBase]: 1/51 cut-off events. [2023-11-26 11:44:37,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:37,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:37,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:37,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:37,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash 296098665, now seen corresponding path program 1 times [2023-11-26 11:44:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:37,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347051682] [2023-11-26 11:44:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:37,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:37,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:37,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347051682] [2023-11-26 11:44:37,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347051682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:37,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:37,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:37,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185917292] [2023-11-26 11:44:37,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:37,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:37,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:37,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2023-11-26 11:44:37,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 95 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:37,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:37,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2023-11-26 11:44:37,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:37,826 INFO L124 PetriNetUnfolderBase]: 9/173 cut-off events. [2023-11-26 11:44:37,826 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:44:37,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 173 events. 9/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 599 event pairs, 1 based on Foata normal form. 12/162 useless extension candidates. Maximal degree in co-relation 162. Up to 15 conditions per place. [2023-11-26 11:44:37,830 INFO L140 encePairwiseOnDemand]: 95/103 looper letters, 12 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2023-11-26 11:44:37,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 223 flow [2023-11-26 11:44:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:37,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2023-11-26 11:44:37,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941747572815534 [2023-11-26 11:44:37,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2023-11-26 11:44:37,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2023-11-26 11:44:37,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:37,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2023-11-26 11:44:37,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:37,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:37,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:37,866 INFO L175 Difference]: Start difference. First operand has 93 places, 95 transitions, 193 flow. Second operand 3 states and 291 transitions. [2023-11-26 11:44:37,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 223 flow [2023-11-26 11:44:37,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 95 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:37,875 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 206 flow [2023-11-26 11:44:37,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2023-11-26 11:44:37,881 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 1 predicate places. [2023-11-26 11:44:37,882 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 206 flow [2023-11-26 11:44:37,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:37,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:37,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:37,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:37,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:37,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash 24872077, now seen corresponding path program 1 times [2023-11-26 11:44:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:37,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499355804] [2023-11-26 11:44:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:38,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499355804] [2023-11-26 11:44:38,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499355804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:38,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:38,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147042213] [2023-11-26 11:44:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:38,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:38,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2023-11-26 11:44:38,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:38,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2023-11-26 11:44:38,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:38,195 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([251] L704-4-->L704-1: Formula: (= |v_#race~x_set~0_4| 0) InVars {} OutVars{#race~x_set~0=|v_#race~x_set~0_4|} AuxVars[] AssignedVars[#race~x_set~0][46], [106#(= |#race~x_set~0| 0), threadThread1of1ForFork0InUse, 110#true, 36#L704-1true, 48#L715-3true, Black: 104#true]) [2023-11-26 11:44:38,196 INFO L294 olderBase$Statistics]: this new event has 66 ancestors and is cut-off event [2023-11-26 11:44:38,196 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2023-11-26 11:44:38,196 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-26 11:44:38,196 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2023-11-26 11:44:38,210 INFO L124 PetriNetUnfolderBase]: 42/316 cut-off events. [2023-11-26 11:44:38,211 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:44:38,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 316 events. 42/316 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1460 event pairs, 11 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 390. Up to 50 conditions per place. [2023-11-26 11:44:38,220 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 15 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2023-11-26 11:44:38,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 258 flow [2023-11-26 11:44:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:38,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-26 11:44:38,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.889967637540453 [2023-11-26 11:44:38,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-26 11:44:38,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-26 11:44:38,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:38,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-26 11:44:38,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,236 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 206 flow. Second operand 3 states and 275 transitions. [2023-11-26 11:44:38,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 258 flow [2023-11-26 11:44:38,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 99 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:38,241 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 230 flow [2023-11-26 11:44:38,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=96, PETRI_TRANSITIONS=95} [2023-11-26 11:44:38,243 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 3 predicate places. [2023-11-26 11:44:38,243 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 230 flow [2023-11-26 11:44:38,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:38,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:38,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:38,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:38,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash -787212999, now seen corresponding path program 1 times [2023-11-26 11:44:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:38,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78383566] [2023-11-26 11:44:38,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:38,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:38,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:38,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78383566] [2023-11-26 11:44:38,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78383566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:38,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:38,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:38,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671325448] [2023-11-26 11:44:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:38,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:38,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:38,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:38,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2023-11-26 11:44:38,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:38,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2023-11-26 11:44:38,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:38,390 INFO L124 PetriNetUnfolderBase]: 18/268 cut-off events. [2023-11-26 11:44:38,391 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-11-26 11:44:38,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 268 events. 18/268 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1151 event pairs, 3 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 339. Up to 25 conditions per place. [2023-11-26 11:44:38,393 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 9 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2023-11-26 11:44:38,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 266 flow [2023-11-26 11:44:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:38,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-26 11:44:38,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061488673139159 [2023-11-26 11:44:38,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-26 11:44:38,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-26 11:44:38,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:38,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-26 11:44:38,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,400 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 230 flow. Second operand 3 states and 280 transitions. [2023-11-26 11:44:38,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 266 flow [2023-11-26 11:44:38,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 98 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:38,405 INFO L231 Difference]: Finished difference. Result has 98 places, 97 transitions, 250 flow [2023-11-26 11:44:38,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=98, PETRI_TRANSITIONS=97} [2023-11-26 11:44:38,407 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places. [2023-11-26 11:44:38,407 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 250 flow [2023-11-26 11:44:38,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:38,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:38,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:38,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:38,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash 827103228, now seen corresponding path program 1 times [2023-11-26 11:44:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843886559] [2023-11-26 11:44:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:38,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:38,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843886559] [2023-11-26 11:44:38,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843886559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:38,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:38,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:38,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356641688] [2023-11-26 11:44:38,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:38,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:38,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:38,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:38,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:38,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 103 [2023-11-26 11:44:38,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:38,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 103 [2023-11-26 11:44:38,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:38,625 INFO L124 PetriNetUnfolderBase]: 54/480 cut-off events. [2023-11-26 11:44:38,625 INFO L125 PetriNetUnfolderBase]: For 66/74 co-relation queries the response was YES. [2023-11-26 11:44:38,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 480 events. 54/480 cut-off events. For 66/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2924 event pairs, 9 based on Foata normal form. 5/432 useless extension candidates. Maximal degree in co-relation 672. Up to 66 conditions per place. [2023-11-26 11:44:38,629 INFO L140 encePairwiseOnDemand]: 100/103 looper letters, 13 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2023-11-26 11:44:38,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 102 transitions, 290 flow [2023-11-26 11:44:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-11-26 11:44:38,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8964401294498382 [2023-11-26 11:44:38,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-11-26 11:44:38,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-11-26 11:44:38,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:38,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-11-26 11:44:38,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,636 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 250 flow. Second operand 3 states and 277 transitions. [2023-11-26 11:44:38,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 102 transitions, 290 flow [2023-11-26 11:44:38,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 102 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:38,641 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 254 flow [2023-11-26 11:44:38,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-26 11:44:38,643 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2023-11-26 11:44:38,643 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 254 flow [2023-11-26 11:44:38,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:38,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:38,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:38,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:38,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:38,645 INFO L85 PathProgramCache]: Analyzing trace with hash -390388896, now seen corresponding path program 1 times [2023-11-26 11:44:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:38,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571253300] [2023-11-26 11:44:38,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:38,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:38,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:38,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571253300] [2023-11-26 11:44:38,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571253300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:38,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:38,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:38,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426510074] [2023-11-26 11:44:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:38,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:38,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:38,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:38,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 103 [2023-11-26 11:44:38,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:38,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 103 [2023-11-26 11:44:38,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:38,962 INFO L124 PetriNetUnfolderBase]: 8/181 cut-off events. [2023-11-26 11:44:38,964 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 11:44:38,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 181 events. 8/181 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 607 event pairs, 0 based on Foata normal form. 1/163 useless extension candidates. Maximal degree in co-relation 193. Up to 14 conditions per place. [2023-11-26 11:44:38,966 INFO L140 encePairwiseOnDemand]: 100/103 looper letters, 9 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-11-26 11:44:38,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 250 flow [2023-11-26 11:44:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-11-26 11:44:38,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.912621359223301 [2023-11-26 11:44:38,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-11-26 11:44:38,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-11-26 11:44:38,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:38,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-11-26 11:44:38,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,978 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 254 flow. Second operand 3 states and 282 transitions. [2023-11-26 11:44:38,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 250 flow [2023-11-26 11:44:38,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 234 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:38,985 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 214 flow [2023-11-26 11:44:38,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2023-11-26 11:44:38,989 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 2 predicate places. [2023-11-26 11:44:38,989 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 214 flow [2023-11-26 11:44:38,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:38,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:38,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:38,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:38,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:38,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 497549866, now seen corresponding path program 1 times [2023-11-26 11:44:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497573719] [2023-11-26 11:44:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:39,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497573719] [2023-11-26 11:44:39,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497573719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:39,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469994588] [2023-11-26 11:44:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:39,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:39,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:44:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:39,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:44:39,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:39,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:39,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469994588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:39,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:39,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 11:44:39,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836292113] [2023-11-26 11:44:39,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:39,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:39,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2023-11-26 11:44:39,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:39,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:39,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2023-11-26 11:44:39,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:39,492 INFO L124 PetriNetUnfolderBase]: 50/304 cut-off events. [2023-11-26 11:44:39,492 INFO L125 PetriNetUnfolderBase]: For 21/23 co-relation queries the response was YES. [2023-11-26 11:44:39,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 304 events. 50/304 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1431 event pairs, 15 based on Foata normal form. 2/277 useless extension candidates. Maximal degree in co-relation 412. Up to 70 conditions per place. [2023-11-26 11:44:39,495 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 16 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2023-11-26 11:44:39,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 99 transitions, 278 flow [2023-11-26 11:44:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-26 11:44:39,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.889967637540453 [2023-11-26 11:44:39,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-26 11:44:39,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-26 11:44:39,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:39,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-26 11:44:39,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:39,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:39,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:39,501 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 214 flow. Second operand 3 states and 275 transitions. [2023-11-26 11:44:39,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 99 transitions, 278 flow [2023-11-26 11:44:39,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 99 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:39,506 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 256 flow [2023-11-26 11:44:39,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2023-11-26 11:44:39,510 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2023-11-26 11:44:39,510 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 256 flow [2023-11-26 11:44:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:39,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:39,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:39,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:39,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:44:39,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:39,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash -786739994, now seen corresponding path program 1 times [2023-11-26 11:44:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756393400] [2023-11-26 11:44:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:39,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:39,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:39,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756393400] [2023-11-26 11:44:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756393400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572621088] [2023-11-26 11:44:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:39,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:39,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:39,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:39,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:44:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:39,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:44:39,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:40,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572621088] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:40,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:40,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 11:44:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581146145] [2023-11-26 11:44:40,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:40,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:44:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:44:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:44:40,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-26 11:44:40,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 256 flow. Second operand has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:40,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:40,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-26 11:44:40,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:40,434 INFO L124 PetriNetUnfolderBase]: 75/409 cut-off events. [2023-11-26 11:44:40,434 INFO L125 PetriNetUnfolderBase]: For 49/52 co-relation queries the response was YES. [2023-11-26 11:44:40,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 409 events. 75/409 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1697 event pairs, 9 based on Foata normal form. 8/397 useless extension candidates. Maximal degree in co-relation 634. Up to 47 conditions per place. [2023-11-26 11:44:40,438 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 34 selfloop transitions, 9 changer transitions 0/124 dead transitions. [2023-11-26 11:44:40,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 124 transitions, 402 flow [2023-11-26 11:44:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 11:44:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2023-11-26 11:44:40,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2023-11-26 11:44:40,443 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 801 transitions. [2023-11-26 11:44:40,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 801 transitions. [2023-11-26 11:44:40,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:40,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 801 transitions. [2023-11-26 11:44:40,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:40,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:40,452 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:40,452 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 256 flow. Second operand 9 states and 801 transitions. [2023-11-26 11:44:40,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 124 transitions, 402 flow [2023-11-26 11:44:40,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 124 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:40,457 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 294 flow [2023-11-26 11:44:40,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=294, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2023-11-26 11:44:40,458 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 13 predicate places. [2023-11-26 11:44:40,459 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 294 flow [2023-11-26 11:44:40,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:40,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:40,460 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:40,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:40,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:40,671 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:40,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2092506944, now seen corresponding path program 2 times [2023-11-26 11:44:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664101412] [2023-11-26 11:44:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:40,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:40,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664101412] [2023-11-26 11:44:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664101412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723021978] [2023-11-26 11:44:40,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:44:40,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:40,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:40,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:40,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:44:40,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:44:40,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:40,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:44:41,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:41,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:41,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723021978] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:41,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:41,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-26 11:44:41,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403971854] [2023-11-26 11:44:41,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:41,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 11:44:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:41,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 11:44:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:44:41,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-26 11:44:41,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 294 flow. Second operand has 18 states, 18 states have (on average 86.05555555555556) internal successors, (1549), 18 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:41,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:41,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-26 11:44:41,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:41,740 INFO L124 PetriNetUnfolderBase]: 112/585 cut-off events. [2023-11-26 11:44:41,740 INFO L125 PetriNetUnfolderBase]: For 145/148 co-relation queries the response was YES. [2023-11-26 11:44:41,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 585 events. 112/585 cut-off events. For 145/148 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2353 event pairs, 12 based on Foata normal form. 16/581 useless extension candidates. Maximal degree in co-relation 1076. Up to 47 conditions per place. [2023-11-26 11:44:41,746 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 74 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2023-11-26 11:44:41,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 176 transitions, 694 flow [2023-11-26 11:44:41,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 11:44:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 11:44:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1863 transitions. [2023-11-26 11:44:41,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8613037447988904 [2023-11-26 11:44:41,753 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1863 transitions. [2023-11-26 11:44:41,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1863 transitions. [2023-11-26 11:44:41,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:41,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1863 transitions. [2023-11-26 11:44:41,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 88.71428571428571) internal successors, (1863), 21 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:41,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:41,801 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:41,802 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 294 flow. Second operand 21 states and 1863 transitions. [2023-11-26 11:44:41,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 176 transitions, 694 flow [2023-11-26 11:44:41,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 176 transitions, 680 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:41,808 INFO L231 Difference]: Finished difference. Result has 130 places, 114 transitions, 418 flow [2023-11-26 11:44:41,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=418, PETRI_PLACES=130, PETRI_TRANSITIONS=114} [2023-11-26 11:44:41,809 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 37 predicate places. [2023-11-26 11:44:41,809 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 114 transitions, 418 flow [2023-11-26 11:44:41,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.05555555555556) internal successors, (1549), 18 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:41,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:41,810 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:41,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:42,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:42,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:42,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1503056226, now seen corresponding path program 3 times [2023-11-26 11:44:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943878645] [2023-11-26 11:44:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:42,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:42,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943878645] [2023-11-26 11:44:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943878645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:42,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143816924] [2023-11-26 11:44:42,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:44:42,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:42,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:42,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:42,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:44:42,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-26 11:44:42,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:42,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:44:42,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:42,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143816924] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:43,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-26 11:44:43,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254076314] [2023-11-26 11:44:43,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:43,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-26 11:44:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-26 11:44:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 11:44:43,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-26 11:44:43,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 114 transitions, 418 flow. Second operand has 34 states, 34 states have (on average 86.02941176470588) internal successors, (2925), 34 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:43,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-26 11:44:43,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:44,264 INFO L124 PetriNetUnfolderBase]: 208/969 cut-off events. [2023-11-26 11:44:44,264 INFO L125 PetriNetUnfolderBase]: For 1079/1082 co-relation queries the response was YES. [2023-11-26 11:44:44,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 969 events. 208/969 cut-off events. For 1079/1082 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3755 event pairs, 12 based on Foata normal form. 32/981 useless extension candidates. Maximal degree in co-relation 2188. Up to 108 conditions per place. [2023-11-26 11:44:44,274 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 154 selfloop transitions, 45 changer transitions 0/280 dead transitions. [2023-11-26 11:44:44,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 280 transitions, 1362 flow [2023-11-26 11:44:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-26 11:44:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-26 11:44:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3987 transitions. [2023-11-26 11:44:44,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8601941747572815 [2023-11-26 11:44:44,289 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3987 transitions. [2023-11-26 11:44:44,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3987 transitions. [2023-11-26 11:44:44,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:44,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3987 transitions. [2023-11-26 11:44:44,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 88.6) internal successors, (3987), 45 states have internal predecessors, (3987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 103.0) internal successors, (4738), 46 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,323 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 103.0) internal successors, (4738), 46 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,324 INFO L175 Difference]: Start difference. First operand has 130 places, 114 transitions, 418 flow. Second operand 45 states and 3987 transitions. [2023-11-26 11:44:44,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 280 transitions, 1362 flow [2023-11-26 11:44:44,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 280 transitions, 1322 flow, removed 14 selfloop flow, removed 6 redundant places. [2023-11-26 11:44:44,337 INFO L231 Difference]: Finished difference. Result has 177 places, 139 transitions, 696 flow [2023-11-26 11:44:44,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=696, PETRI_PLACES=177, PETRI_TRANSITIONS=139} [2023-11-26 11:44:44,339 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 84 predicate places. [2023-11-26 11:44:44,339 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 139 transitions, 696 flow [2023-11-26 11:44:44,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 86.02941176470588) internal successors, (2925), 34 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:44,341 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:44,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:44,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:44,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:44,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash -222096064, now seen corresponding path program 4 times [2023-11-26 11:44:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:44,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063476305] [2023-11-26 11:44:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:45,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063476305] [2023-11-26 11:44:45,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063476305] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:45,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636223059] [2023-11-26 11:44:45,863 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 11:44:45,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:45,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:45,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:45,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:44:46,014 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 11:44:46,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:46,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 11:44:46,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:46,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:47,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636223059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:47,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:47,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2023-11-26 11:44:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824792] [2023-11-26 11:44:47,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:47,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-26 11:44:47,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:47,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-26 11:44:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2023-11-26 11:44:47,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-26 11:44:47,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 139 transitions, 696 flow. Second operand has 66 states, 66 states have (on average 86.01515151515152) internal successors, (5677), 66 states have internal predecessors, (5677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:47,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-26 11:44:47,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:51,593 INFO L124 PetriNetUnfolderBase]: 523/1865 cut-off events. [2023-11-26 11:44:51,593 INFO L125 PetriNetUnfolderBase]: For 8808/8811 co-relation queries the response was YES. [2023-11-26 11:44:51,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5026 conditions, 1865 events. 523/1865 cut-off events. For 8808/8811 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6790 event pairs, 9 based on Foata normal form. 64/1908 useless extension candidates. Maximal degree in co-relation 4961. Up to 255 conditions per place. [2023-11-26 11:44:51,612 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 314 selfloop transitions, 93 changer transitions 0/488 dead transitions. [2023-11-26 11:44:51,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 488 transitions, 2844 flow [2023-11-26 11:44:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-26 11:44:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2023-11-26 11:44:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 8235 transitions. [2023-11-26 11:44:51,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8596930786094582 [2023-11-26 11:44:51,639 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 8235 transitions. [2023-11-26 11:44:51,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 8235 transitions. [2023-11-26 11:44:51,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:51,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 8235 transitions. [2023-11-26 11:44:51,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 88.54838709677419) internal successors, (8235), 93 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 103.0) internal successors, (9682), 94 states have internal predecessors, (9682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,712 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 103.0) internal successors, (9682), 94 states have internal predecessors, (9682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,713 INFO L175 Difference]: Start difference. First operand has 177 places, 139 transitions, 696 flow. Second operand 93 states and 8235 transitions. [2023-11-26 11:44:51,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 488 transitions, 2844 flow [2023-11-26 11:44:51,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 488 transitions, 2756 flow, removed 26 selfloop flow, removed 18 redundant places. [2023-11-26 11:44:51,743 INFO L231 Difference]: Finished difference. Result has 268 places, 188 transitions, 1330 flow [2023-11-26 11:44:51,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=1330, PETRI_PLACES=268, PETRI_TRANSITIONS=188} [2023-11-26 11:44:51,745 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 175 predicate places. [2023-11-26 11:44:51,745 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 188 transitions, 1330 flow [2023-11-26 11:44:51,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 86.01515151515152) internal successors, (5677), 66 states have internal predecessors, (5677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:51,748 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:51,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:51,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:51,955 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:44:51,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash 829138018, now seen corresponding path program 5 times [2023-11-26 11:44:51,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:51,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098077041] [2023-11-26 11:44:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:51,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:55,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:55,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098077041] [2023-11-26 11:44:55,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098077041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:55,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388514877] [2023-11-26 11:44:55,728 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-26 11:44:55,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:55,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:55,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:55,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:44:55,925 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-11-26 11:44:55,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:55,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-26 11:44:55,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:56,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:59,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388514877] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:59,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:59,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 89 [2023-11-26 11:44:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165060011] [2023-11-26 11:44:59,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:59,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-11-26 11:44:59,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:59,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-11-26 11:44:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2024, Invalid=5808, Unknown=0, NotChecked=0, Total=7832 [2023-11-26 11:44:59,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-26 11:44:59,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 188 transitions, 1330 flow. Second operand has 89 states, 89 states have (on average 86.03370786516854) internal successors, (7657), 89 states have internal predecessors, (7657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:59,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:59,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-26 11:44:59,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:06,146 INFO L124 PetriNetUnfolderBase]: 544/2313 cut-off events. [2023-11-26 11:45:06,147 INFO L125 PetriNetUnfolderBase]: For 28499/28502 co-relation queries the response was YES. [2023-11-26 11:45:06,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7158 conditions, 2313 events. 544/2313 cut-off events. For 28499/28502 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8735 event pairs, 12 based on Foata normal form. 48/2341 useless extension candidates. Maximal degree in co-relation 7076. Up to 328 conditions per place. [2023-11-26 11:45:06,174 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 434 selfloop transitions, 129 changer transitions 0/644 dead transitions. [2023-11-26 11:45:06,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 644 transitions, 4198 flow [2023-11-26 11:45:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-11-26 11:45:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2023-11-26 11:45:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 11411 transitions. [2023-11-26 11:45:06,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8588093625348084 [2023-11-26 11:45:06,202 INFO L72 ComplementDD]: Start complementDD. Operand 129 states and 11411 transitions. [2023-11-26 11:45:06,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 11411 transitions. [2023-11-26 11:45:06,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:06,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 129 states and 11411 transitions. [2023-11-26 11:45:06,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 130 states, 129 states have (on average 88.45736434108527) internal successors, (11411), 129 states have internal predecessors, (11411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:06,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 130 states, 130 states have (on average 103.0) internal successors, (13390), 130 states have internal predecessors, (13390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:06,271 INFO L81 ComplementDD]: Finished complementDD. Result has 130 states, 130 states have (on average 103.0) internal successors, (13390), 130 states have internal predecessors, (13390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:06,271 INFO L175 Difference]: Start difference. First operand has 268 places, 188 transitions, 1330 flow. Second operand 129 states and 11411 transitions. [2023-11-26 11:45:06,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 644 transitions, 4198 flow [2023-11-26 11:45:06,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 644 transitions, 4054 flow, removed 30 selfloop flow, removed 42 redundant places. [2023-11-26 11:45:06,335 INFO L231 Difference]: Finished difference. Result has 367 places, 225 transitions, 1928 flow [2023-11-26 11:45:06,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=129, PETRI_FLOW=1928, PETRI_PLACES=367, PETRI_TRANSITIONS=225} [2023-11-26 11:45:06,336 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 274 predicate places. [2023-11-26 11:45:06,337 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 225 transitions, 1928 flow [2023-11-26 11:45:06,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 86.03370786516854) internal successors, (7657), 89 states have internal predecessors, (7657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:06,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:06,339 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:06,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:06,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:06,546 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:45:06,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1007257980, now seen corresponding path program 6 times [2023-11-26 11:45:06,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:06,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044320907] [2023-11-26 11:45:06,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:06,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:45:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:06,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:45:06,949 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:45:06,950 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-26 11:45:06,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-26 11:45:06,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-26 11:45:06,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-26 11:45:06,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-11-26 11:45:06,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-26 11:45:06,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-26 11:45:06,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-26 11:45:06,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:45:06,954 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:06,963 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:45:06,963 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:45:07,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-26 11:45:07,149 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-26 11:45:07,150 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:45:07,150 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-26 11:45:07,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:45:07 BasicIcfg [2023-11-26 11:45:07,170 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:45:07,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:45:07,171 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:45:07,171 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:45:07,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:36" (3/4) ... [2023-11-26 11:45:07,173 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:45:07,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:45:07,175 INFO L158 Benchmark]: Toolchain (without parser) took 31489.74ms. Allocated memory was 172.0MB in the beginning and 585.1MB in the end (delta: 413.1MB). Free memory was 143.0MB in the beginning and 436.9MB in the end (delta: -294.0MB). Peak memory consumption was 120.9MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,176 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:45:07,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.04ms. Allocated memory is still 172.0MB. Free memory was 143.0MB in the beginning and 122.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.93ms. Allocated memory is still 172.0MB. Free memory was 122.7MB in the beginning and 120.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:45:07,177 INFO L158 Benchmark]: Boogie Preprocessor took 34.30ms. Allocated memory is still 172.0MB. Free memory was 120.6MB in the beginning and 118.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,177 INFO L158 Benchmark]: RCFGBuilder took 514.74ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 102.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,178 INFO L158 Benchmark]: TraceAbstraction took 30197.04ms. Allocated memory was 172.0MB in the beginning and 585.1MB in the end (delta: 413.1MB). Free memory was 101.8MB in the beginning and 438.0MB in the end (delta: -336.2MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,178 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 585.1MB. Free memory was 438.0MB in the beginning and 436.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:45:07,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.04ms. Allocated memory is still 172.0MB. Free memory was 143.0MB in the beginning and 122.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.93ms. Allocated memory is still 172.0MB. Free memory was 122.7MB in the beginning and 120.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.30ms. Allocated memory is still 172.0MB. Free memory was 120.6MB in the beginning and 118.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 514.74ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 102.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30197.04ms. Allocated memory was 172.0MB in the beginning and 585.1MB in the end (delta: 413.1MB). Free memory was 101.8MB in the beginning and 438.0MB in the end (delta: -336.2MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 585.1MB. Free memory was 438.0MB in the beginning and 436.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 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: - DataRaceFoundResult [Line: 704]: Data race detected [2023-11-26 11:45:07,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-26 11:45:07,286 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-26 11:45:07,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:45:07,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-26 11:45:07,361 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-26 11:45:07,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-26 11:45:07,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-26 11:45:07,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L700] 0 _Bool x_set = 0; VAL [cond={4:0}, lock={3:0}, x=0, x_set=0] [L711] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] 0 int i = 0; VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L713] COND FALSE 0 !(i <= 42) VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L715] 0 x_set = 1 VAL [cond={4:0}, lock={3:0}, t={7:0}, x=42, x_set=1] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] [L715] 0 x_set = 1 VAL [cond={4:0}, lock={3:0}, t={7:0}, x=42, x_set=1] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] Now there is a data race on ~x_set~0 between C: x_set = 1 [715] and C: !x_set [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 124 locations, 8 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: 29.8s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3948 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3887 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2045 IncrementalHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 26 mSDtfsCounter, 2045 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1915 GetRequests, 1470 SyntacticMatches, 41 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13224 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1928occurred in iteration=11, InterpolantAutomatonStates: 315, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 2321 NumberOfCodeBlocks, 2321 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 2629 ConstructedInterpolants, 0 QuantifiedInterpolants, 5891 SizeOfPredicates, 114 NumberOfNonLiveVariables, 1589 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 1/16211 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! [2023-11-26 11:45:07,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abedf543-7e5f-4678-be9e-be383aca0fb1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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