./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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya --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 [2023-11-29 05:54:08,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:54:08,961 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 05:54:08,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:54:08,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:54:08,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:54:08,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:54:08,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:54:08,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:54:08,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:54:08,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:54:08,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:54:08,992 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:54:08,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:54:08,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:54:08,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:54:08,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:54:08,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:54:08,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:54:08,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:54:08,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:54:08,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:54:08,997 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 05:54:08,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:54:08,998 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:54:08,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:54:08,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:54:09,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:54:09,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:54:09,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:54:09,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:54:09,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:54:09,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:54:09,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:54:09,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:54:09,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:54:09,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:54:09,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:54:09,003 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:54:09,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:54:09,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:54:09,004 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_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2023-11-29 05:54:09,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:54:09,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:54:09,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:54:09,213 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:54:09,214 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:54:09,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-divine/condvar.i [2023-11-29 05:54:12,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:54:12,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:54:12,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/sv-benchmarks/c/pthread-divine/condvar.i [2023-11-29 05:54:12,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/data/1d45bf93d/49aa00c9d137442eb0a2b430e4e1193e/FLAGe9f7c4ac3 [2023-11-29 05:54:12,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/data/1d45bf93d/49aa00c9d137442eb0a2b430e4e1193e [2023-11-29 05:54:12,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:54:12,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:54:12,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:54:12,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:54:12,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:54:12,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152a673d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12, skipping insertion in model container [2023-11-29 05:54:12,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:54:12,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:54:12,632 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:54:12,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:54:12,714 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:54:12,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12 WrapperNode [2023-11-29 05:54:12,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:54:12,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:54:12,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:54:12,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:54:12,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,760 INFO L138 Inliner]: procedures = 169, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2023-11-29 05:54:12,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:54:12,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:54:12,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:54:12,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:54:12,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:54:12,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:54:12,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:54:12,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:54:12,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (1/1) ... [2023-11-29 05:54:12,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:54:12,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:12,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:54:12,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:54:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 05:54:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 05:54:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-29 05:54:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-29 05:54:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 05:54:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:54:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:54:12,863 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 05:54:12,980 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:54:12,982 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:54:13,172 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:54:13,196 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:54:13,196 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:54:13,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:13 BoogieIcfgContainer [2023-11-29 05:54:13,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:54:13,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:54:13,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:54:13,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:54:13,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:54:12" (1/3) ... [2023-11-29 05:54:13,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f07c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:54:13, skipping insertion in model container [2023-11-29 05:54:13,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:54:12" (2/3) ... [2023-11-29 05:54:13,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f07c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:54:13, skipping insertion in model container [2023-11-29 05:54:13,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:13" (3/3) ... [2023-11-29 05:54:13,206 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2023-11-29 05:54:13,213 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:54:13,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:54:13,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-29 05:54:13,222 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:54:13,295 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 05:54:13,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 213 flow [2023-11-29 05:54:13,383 INFO L124 PetriNetUnfolderBase]: 6/102 cut-off events. [2023-11-29 05:54:13,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 05:54:13,388 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. [2023-11-29 05:54:13,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 103 transitions, 213 flow [2023-11-29 05:54:13,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 95 transitions, 193 flow [2023-11-29 05:54:13,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:54:13,407 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;@792af41d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:54:13,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 05:54:13,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:54:13,426 INFO L124 PetriNetUnfolderBase]: 1/51 cut-off events. [2023-11-29 05:54:13,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:54:13,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:13,427 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] [2023-11-29 05:54:13,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:13,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:13,434 INFO L85 PathProgramCache]: Analyzing trace with hash 296098665, now seen corresponding path program 1 times [2023-11-29 05:54:13,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:13,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183880203] [2023-11-29 05:54:13,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:13,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:13,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183880203] [2023-11-29 05:54:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183880203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266845570] [2023-11-29 05:54:13,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:13,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:13,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:13,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:13,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2023-11-29 05:54:13,781 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) [2023-11-29 05:54:13,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:13,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2023-11-29 05:54:13,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:13,852 INFO L124 PetriNetUnfolderBase]: 9/173 cut-off events. [2023-11-29 05:54:13,852 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 05:54:13,854 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. [2023-11-29 05:54:13,856 INFO L140 encePairwiseOnDemand]: 95/103 looper letters, 12 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2023-11-29 05:54:13,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 223 flow [2023-11-29 05:54:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:13,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2023-11-29 05:54:13,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941747572815534 [2023-11-29 05:54:13,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2023-11-29 05:54:13,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2023-11-29 05:54:13,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:13,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2023-11-29 05:54:13,881 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) [2023-11-29 05:54:13,886 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) [2023-11-29 05:54:13,887 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) [2023-11-29 05:54:13,889 INFO L175 Difference]: Start difference. First operand has 93 places, 95 transitions, 193 flow. Second operand 3 states and 291 transitions. [2023-11-29 05:54:13,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 223 flow [2023-11-29 05:54:13,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 95 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:54:13,897 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 206 flow [2023-11-29 05:54:13,899 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} [2023-11-29 05:54:13,903 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 1 predicate places. [2023-11-29 05:54:13,904 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 206 flow [2023-11-29 05:54:13,904 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) [2023-11-29 05:54:13,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:13,905 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] [2023-11-29 05:54:13,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:54:13,905 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)] === [2023-11-29 05:54:13,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash 24872077, now seen corresponding path program 1 times [2023-11-29 05:54:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:13,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226846525] [2023-11-29 05:54:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:13,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:13,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226846525] [2023-11-29 05:54:13,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226846525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:13,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:13,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:13,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803349036] [2023-11-29 05:54:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:13,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:13,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:13,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:13,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:14,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2023-11-29 05:54:14,011 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) [2023-11-29 05:54:14,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:14,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2023-11-29 05:54:14,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:14,084 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]) [2023-11-29 05:54:14,085 INFO L294 olderBase$Statistics]: this new event has 66 ancestors and is cut-off event [2023-11-29 05:54:14,085 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2023-11-29 05:54:14,085 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-29 05:54:14,085 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2023-11-29 05:54:14,092 INFO L124 PetriNetUnfolderBase]: 42/316 cut-off events. [2023-11-29 05:54:14,092 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-29 05:54:14,094 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. [2023-11-29 05:54:14,096 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 15 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2023-11-29 05:54:14,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 258 flow [2023-11-29 05:54:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-29 05:54:14,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.889967637540453 [2023-11-29 05:54:14,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-29 05:54:14,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-29 05:54:14,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:14,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-29 05:54:14,103 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) [2023-11-29 05:54:14,104 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) [2023-11-29 05:54:14,105 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) [2023-11-29 05:54:14,105 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 206 flow. Second operand 3 states and 275 transitions. [2023-11-29 05:54:14,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 258 flow [2023-11-29 05:54:14,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 99 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:54:14,110 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 230 flow [2023-11-29 05:54:14,111 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} [2023-11-29 05:54:14,111 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 3 predicate places. [2023-11-29 05:54:14,112 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 230 flow [2023-11-29 05:54:14,112 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) [2023-11-29 05:54:14,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:14,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:14,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:54:14,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:14,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:14,114 INFO L85 PathProgramCache]: Analyzing trace with hash -787212999, now seen corresponding path program 1 times [2023-11-29 05:54:14,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:14,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33534519] [2023-11-29 05:54:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:14,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:14,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33534519] [2023-11-29 05:54:14,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33534519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:14,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:14,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:54:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993180758] [2023-11-29 05:54:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:14,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:14,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:14,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2023-11-29 05:54:14,202 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) [2023-11-29 05:54:14,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:14,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2023-11-29 05:54:14,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:14,260 INFO L124 PetriNetUnfolderBase]: 18/268 cut-off events. [2023-11-29 05:54:14,260 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-11-29 05:54:14,262 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. [2023-11-29 05:54:14,263 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 9 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2023-11-29 05:54:14,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 266 flow [2023-11-29 05:54:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-11-29 05:54:14,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061488673139159 [2023-11-29 05:54:14,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-11-29 05:54:14,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-11-29 05:54:14,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:14,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-11-29 05:54:14,268 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) [2023-11-29 05:54:14,270 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) [2023-11-29 05:54:14,270 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) [2023-11-29 05:54:14,270 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 230 flow. Second operand 3 states and 280 transitions. [2023-11-29 05:54:14,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 266 flow [2023-11-29 05:54:14,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 98 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:54:14,275 INFO L231 Difference]: Finished difference. Result has 98 places, 97 transitions, 250 flow [2023-11-29 05:54:14,275 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} [2023-11-29 05:54:14,276 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places. [2023-11-29 05:54:14,276 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 250 flow [2023-11-29 05:54:14,277 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) [2023-11-29 05:54:14,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:14,277 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] [2023-11-29 05:54:14,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:54:14,277 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)] === [2023-11-29 05:54:14,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:14,278 INFO L85 PathProgramCache]: Analyzing trace with hash 827103228, now seen corresponding path program 1 times [2023-11-29 05:54:14,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:14,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822223903] [2023-11-29 05:54:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:14,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:14,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822223903] [2023-11-29 05:54:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822223903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:14,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470063814] [2023-11-29 05:54:14,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:14,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:14,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:14,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 103 [2023-11-29 05:54:14,367 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) [2023-11-29 05:54:14,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:14,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 103 [2023-11-29 05:54:14,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:14,469 INFO L124 PetriNetUnfolderBase]: 54/480 cut-off events. [2023-11-29 05:54:14,469 INFO L125 PetriNetUnfolderBase]: For 66/74 co-relation queries the response was YES. [2023-11-29 05:54:14,471 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. [2023-11-29 05:54:14,473 INFO L140 encePairwiseOnDemand]: 100/103 looper letters, 13 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2023-11-29 05:54:14,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 102 transitions, 290 flow [2023-11-29 05:54:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-11-29 05:54:14,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8964401294498382 [2023-11-29 05:54:14,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-11-29 05:54:14,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-11-29 05:54:14,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:14,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-11-29 05:54:14,477 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) [2023-11-29 05:54:14,478 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) [2023-11-29 05:54:14,479 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) [2023-11-29 05:54:14,479 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 250 flow. Second operand 3 states and 277 transitions. [2023-11-29 05:54:14,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 102 transitions, 290 flow [2023-11-29 05:54:14,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 102 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:54:14,484 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 254 flow [2023-11-29 05:54:14,484 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} [2023-11-29 05:54:14,485 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2023-11-29 05:54:14,485 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 254 flow [2023-11-29 05:54:14,486 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) [2023-11-29 05:54:14,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:14,486 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] [2023-11-29 05:54:14,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:54:14,486 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)] === [2023-11-29 05:54:14,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -390388896, now seen corresponding path program 1 times [2023-11-29 05:54:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:14,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245120330] [2023-11-29 05:54:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:14,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:14,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245120330] [2023-11-29 05:54:14,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245120330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:14,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:54:14,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:54:14,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565714541] [2023-11-29 05:54:14,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:14,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:14,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:14,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:54:14,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 103 [2023-11-29 05:54:14,615 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) [2023-11-29 05:54:14,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:14,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 103 [2023-11-29 05:54:14,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:14,657 INFO L124 PetriNetUnfolderBase]: 8/181 cut-off events. [2023-11-29 05:54:14,657 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 05:54:14,658 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. [2023-11-29 05:54:14,659 INFO L140 encePairwiseOnDemand]: 100/103 looper letters, 9 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-11-29 05:54:14,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 94 transitions, 250 flow [2023-11-29 05:54:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:14,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-11-29 05:54:14,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.912621359223301 [2023-11-29 05:54:14,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-11-29 05:54:14,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-11-29 05:54:14,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:14,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-11-29 05:54:14,663 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) [2023-11-29 05:54:14,664 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) [2023-11-29 05:54:14,665 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) [2023-11-29 05:54:14,665 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 254 flow. Second operand 3 states and 282 transitions. [2023-11-29 05:54:14,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 94 transitions, 250 flow [2023-11-29 05:54:14,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 234 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-29 05:54:14,668 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 214 flow [2023-11-29 05:54:14,669 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} [2023-11-29 05:54:14,669 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 2 predicate places. [2023-11-29 05:54:14,670 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 214 flow [2023-11-29 05:54:14,670 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) [2023-11-29 05:54:14,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:14,670 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] [2023-11-29 05:54:14,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:54:14,671 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)] === [2023-11-29 05:54:14,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 497549866, now seen corresponding path program 1 times [2023-11-29 05:54:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:14,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436460012] [2023-11-29 05:54:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:14,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:14,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:14,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436460012] [2023-11-29 05:54:14,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436460012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:14,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278973301] [2023-11-29 05:54:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:14,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:14,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:14,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:14,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:54:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:14,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:54:14,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:54:14,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:54:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278973301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:54:14,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:14,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 05:54:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903239956] [2023-11-29 05:54:14,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:54:14,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:54:14,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:14,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:54:14,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:54:14,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2023-11-29 05:54:14,950 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) [2023-11-29 05:54:14,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:14,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2023-11-29 05:54:14,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:15,011 INFO L124 PetriNetUnfolderBase]: 50/304 cut-off events. [2023-11-29 05:54:15,011 INFO L125 PetriNetUnfolderBase]: For 21/23 co-relation queries the response was YES. [2023-11-29 05:54:15,012 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. [2023-11-29 05:54:15,014 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 16 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2023-11-29 05:54:15,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 99 transitions, 278 flow [2023-11-29 05:54:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:54:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:54:15,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-29 05:54:15,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.889967637540453 [2023-11-29 05:54:15,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-29 05:54:15,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-29 05:54:15,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:15,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-29 05:54:15,017 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) [2023-11-29 05:54:15,018 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) [2023-11-29 05:54:15,019 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) [2023-11-29 05:54:15,019 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 214 flow. Second operand 3 states and 275 transitions. [2023-11-29 05:54:15,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 99 transitions, 278 flow [2023-11-29 05:54:15,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 99 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:54:15,022 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 256 flow [2023-11-29 05:54:15,023 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} [2023-11-29 05:54:15,023 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2023-11-29 05:54:15,024 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 256 flow [2023-11-29 05:54:15,024 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) [2023-11-29 05:54:15,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:15,024 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] [2023-11-29 05:54:15,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:15,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:15,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:15,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:15,226 INFO L85 PathProgramCache]: Analyzing trace with hash -786739994, now seen corresponding path program 1 times [2023-11-29 05:54:15,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:15,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475928629] [2023-11-29 05:54:15,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:15,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475928629] [2023-11-29 05:54:15,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475928629] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:15,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356455198] [2023-11-29 05:54:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:15,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:15,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:15,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:54:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:15,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:54:15,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:15,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:15,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356455198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:15,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:54:15,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 05:54:15,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72938750] [2023-11-29 05:54:15,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:15,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:54:15,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:15,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:54:15,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:54:15,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-29 05:54:15,540 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) [2023-11-29 05:54:15,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:15,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-29 05:54:15,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:15,722 INFO L124 PetriNetUnfolderBase]: 75/409 cut-off events. [2023-11-29 05:54:15,723 INFO L125 PetriNetUnfolderBase]: For 49/52 co-relation queries the response was YES. [2023-11-29 05:54:15,724 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. [2023-11-29 05:54:15,726 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 34 selfloop transitions, 9 changer transitions 0/124 dead transitions. [2023-11-29 05:54:15,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 124 transitions, 402 flow [2023-11-29 05:54:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:54:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 05:54:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2023-11-29 05:54:15,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2023-11-29 05:54:15,730 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 801 transitions. [2023-11-29 05:54:15,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 801 transitions. [2023-11-29 05:54:15,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:15,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 801 transitions. [2023-11-29 05:54:15,734 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) [2023-11-29 05:54:15,736 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) [2023-11-29 05:54:15,737 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) [2023-11-29 05:54:15,737 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 256 flow. Second operand 9 states and 801 transitions. [2023-11-29 05:54:15,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 124 transitions, 402 flow [2023-11-29 05:54:15,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 124 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:54:15,742 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 294 flow [2023-11-29 05:54:15,742 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} [2023-11-29 05:54:15,743 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 13 predicate places. [2023-11-29 05:54:15,743 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 294 flow [2023-11-29 05:54:15,744 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) [2023-11-29 05:54:15,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:15,744 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] [2023-11-29 05:54:15,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:54:15,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:54:15,945 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:15,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2092506944, now seen corresponding path program 2 times [2023-11-29 05:54:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:15,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611139148] [2023-11-29 05:54:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:16,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611139148] [2023-11-29 05:54:16,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611139148] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:16,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141459849] [2023-11-29 05:54:16,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:54:16,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:16,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:16,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:54:16,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:54:16,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:16,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:54:16,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:16,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:16,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141459849] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:16,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:54:16,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 05:54:16,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103189376] [2023-11-29 05:54:16,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:16,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:54:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:16,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:54:16,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:54:16,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-29 05:54:16,484 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) [2023-11-29 05:54:16,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:16,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-29 05:54:16,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:16,840 INFO L124 PetriNetUnfolderBase]: 112/585 cut-off events. [2023-11-29 05:54:16,840 INFO L125 PetriNetUnfolderBase]: For 145/148 co-relation queries the response was YES. [2023-11-29 05:54:16,842 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. [2023-11-29 05:54:16,845 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 74 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2023-11-29 05:54:16,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 176 transitions, 694 flow [2023-11-29 05:54:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 05:54:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 05:54:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1863 transitions. [2023-11-29 05:54:16,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8613037447988904 [2023-11-29 05:54:16,852 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1863 transitions. [2023-11-29 05:54:16,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1863 transitions. [2023-11-29 05:54:16,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:16,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1863 transitions. [2023-11-29 05:54:16,860 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) [2023-11-29 05:54:16,865 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) [2023-11-29 05:54:16,866 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) [2023-11-29 05:54:16,866 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 294 flow. Second operand 21 states and 1863 transitions. [2023-11-29 05:54:16,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 176 transitions, 694 flow [2023-11-29 05:54:16,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 176 transitions, 680 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-29 05:54:16,872 INFO L231 Difference]: Finished difference. Result has 130 places, 114 transitions, 418 flow [2023-11-29 05:54:16,872 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} [2023-11-29 05:54:16,873 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 37 predicate places. [2023-11-29 05:54:16,873 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 114 transitions, 418 flow [2023-11-29 05:54:16,874 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) [2023-11-29 05:54:16,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:16,874 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] [2023-11-29 05:54:16,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:54:17,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:17,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:17,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1503056226, now seen corresponding path program 3 times [2023-11-29 05:54:17,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:17,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911853208] [2023-11-29 05:54:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:17,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:17,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911853208] [2023-11-29 05:54:17,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911853208] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:17,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765691321] [2023-11-29 05:54:17,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:54:17,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:17,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:17,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:54:17,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 05:54:17,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:17,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:54:17,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:17,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:18,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765691321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:18,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:54:18,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-29 05:54:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253898977] [2023-11-29 05:54:18,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:18,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 05:54:18,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 05:54:18,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 05:54:18,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-29 05:54:18,145 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) [2023-11-29 05:54:18,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:18,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-29 05:54:18,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:19,113 INFO L124 PetriNetUnfolderBase]: 208/969 cut-off events. [2023-11-29 05:54:19,113 INFO L125 PetriNetUnfolderBase]: For 1079/1082 co-relation queries the response was YES. [2023-11-29 05:54:19,117 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. [2023-11-29 05:54:19,122 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 154 selfloop transitions, 45 changer transitions 0/280 dead transitions. [2023-11-29 05:54:19,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 280 transitions, 1362 flow [2023-11-29 05:54:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 05:54:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-29 05:54:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3987 transitions. [2023-11-29 05:54:19,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8601941747572815 [2023-11-29 05:54:19,136 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3987 transitions. [2023-11-29 05:54:19,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3987 transitions. [2023-11-29 05:54:19,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:19,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3987 transitions. [2023-11-29 05:54:19,150 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) [2023-11-29 05:54:19,163 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) [2023-11-29 05:54:19,166 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) [2023-11-29 05:54:19,166 INFO L175 Difference]: Start difference. First operand has 130 places, 114 transitions, 418 flow. Second operand 45 states and 3987 transitions. [2023-11-29 05:54:19,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 280 transitions, 1362 flow [2023-11-29 05:54:19,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 280 transitions, 1322 flow, removed 14 selfloop flow, removed 6 redundant places. [2023-11-29 05:54:19,176 INFO L231 Difference]: Finished difference. Result has 177 places, 139 transitions, 696 flow [2023-11-29 05:54:19,177 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} [2023-11-29 05:54:19,177 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 84 predicate places. [2023-11-29 05:54:19,178 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 139 transitions, 696 flow [2023-11-29 05:54:19,179 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) [2023-11-29 05:54:19,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:19,179 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] [2023-11-29 05:54:19,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:54:19,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 05:54:19,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:19,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:19,380 INFO L85 PathProgramCache]: Analyzing trace with hash -222096064, now seen corresponding path program 4 times [2023-11-29 05:54:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792718233] [2023-11-29 05:54:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:20,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:20,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792718233] [2023-11-29 05:54:20,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792718233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:20,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596519319] [2023-11-29 05:54:20,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:54:20,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:20,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:20,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:20,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:54:20,500 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:54:20,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:20,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:54:20,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:20,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:21,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596519319] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:21,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:54:21,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2023-11-29 05:54:21,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119529226] [2023-11-29 05:54:21,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:21,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-29 05:54:21,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:21,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-29 05:54:21,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 05:54:21,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-29 05:54:21,793 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) [2023-11-29 05:54:21,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:21,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-29 05:54:21,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:24,474 INFO L124 PetriNetUnfolderBase]: 523/1865 cut-off events. [2023-11-29 05:54:24,474 INFO L125 PetriNetUnfolderBase]: For 8808/8811 co-relation queries the response was YES. [2023-11-29 05:54:24,481 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. [2023-11-29 05:54:24,491 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 314 selfloop transitions, 93 changer transitions 0/488 dead transitions. [2023-11-29 05:54:24,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 488 transitions, 2844 flow [2023-11-29 05:54:24,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 05:54:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2023-11-29 05:54:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 8235 transitions. [2023-11-29 05:54:24,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8596930786094582 [2023-11-29 05:54:24,506 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 8235 transitions. [2023-11-29 05:54:24,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 8235 transitions. [2023-11-29 05:54:24,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:24,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 8235 transitions. [2023-11-29 05:54:24,529 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) [2023-11-29 05:54:24,548 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) [2023-11-29 05:54:24,554 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) [2023-11-29 05:54:24,554 INFO L175 Difference]: Start difference. First operand has 177 places, 139 transitions, 696 flow. Second operand 93 states and 8235 transitions. [2023-11-29 05:54:24,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 488 transitions, 2844 flow [2023-11-29 05:54:24,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 488 transitions, 2756 flow, removed 26 selfloop flow, removed 18 redundant places. [2023-11-29 05:54:24,578 INFO L231 Difference]: Finished difference. Result has 268 places, 188 transitions, 1330 flow [2023-11-29 05:54:24,579 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} [2023-11-29 05:54:24,579 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 175 predicate places. [2023-11-29 05:54:24,579 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 188 transitions, 1330 flow [2023-11-29 05:54:24,581 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) [2023-11-29 05:54:24,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:24,582 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] [2023-11-29 05:54:24,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:54:24,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:54:24,786 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:24,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash 829138018, now seen corresponding path program 5 times [2023-11-29 05:54:24,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:24,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530918337] [2023-11-29 05:54:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:27,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:27,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530918337] [2023-11-29 05:54:27,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530918337] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:27,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458909680] [2023-11-29 05:54:27,483 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:54:27,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:54:27,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:54:27,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:54:27,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:54:27,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-11-29 05:54:27,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:27,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 05:54:27,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:27,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:54:29,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458909680] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:29,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:54:29,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 89 [2023-11-29 05:54:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269472950] [2023-11-29 05:54:29,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:29,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-11-29 05:54:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-11-29 05:54:29,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2024, Invalid=5808, Unknown=0, NotChecked=0, Total=7832 [2023-11-29 05:54:30,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 103 [2023-11-29 05:54:30,068 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) [2023-11-29 05:54:30,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:54:30,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 103 [2023-11-29 05:54:30,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:54:34,712 INFO L124 PetriNetUnfolderBase]: 544/2313 cut-off events. [2023-11-29 05:54:34,712 INFO L125 PetriNetUnfolderBase]: For 28499/28502 co-relation queries the response was YES. [2023-11-29 05:54:34,720 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. [2023-11-29 05:54:34,729 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 434 selfloop transitions, 129 changer transitions 0/644 dead transitions. [2023-11-29 05:54:34,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 644 transitions, 4198 flow [2023-11-29 05:54:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-11-29 05:54:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2023-11-29 05:54:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 11411 transitions. [2023-11-29 05:54:34,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8588093625348084 [2023-11-29 05:54:34,743 INFO L72 ComplementDD]: Start complementDD. Operand 129 states and 11411 transitions. [2023-11-29 05:54:34,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 11411 transitions. [2023-11-29 05:54:34,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:54:34,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 129 states and 11411 transitions. [2023-11-29 05:54:34,761 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) [2023-11-29 05:54:34,776 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) [2023-11-29 05:54:34,780 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) [2023-11-29 05:54:34,781 INFO L175 Difference]: Start difference. First operand has 268 places, 188 transitions, 1330 flow. Second operand 129 states and 11411 transitions. [2023-11-29 05:54:34,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 644 transitions, 4198 flow [2023-11-29 05:54:34,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 644 transitions, 4054 flow, removed 30 selfloop flow, removed 42 redundant places. [2023-11-29 05:54:34,837 INFO L231 Difference]: Finished difference. Result has 367 places, 225 transitions, 1928 flow [2023-11-29 05:54:34,838 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} [2023-11-29 05:54:34,839 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 274 predicate places. [2023-11-29 05:54:34,839 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 225 transitions, 1928 flow [2023-11-29 05:54:34,841 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) [2023-11-29 05:54:34,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:54:34,842 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] [2023-11-29 05:54:34,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 05:54:35,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:54:35,050 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 05:54:35,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1007257980, now seen corresponding path program 6 times [2023-11-29 05:54:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:54:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93442433] [2023-11-29 05:54:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:54:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:54:35,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:54:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:54:35,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:54:35,314 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:54:35,315 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-29 05:54:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-29 05:54:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-29 05:54:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-29 05:54:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-11-29 05:54:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-29 05:54:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-29 05:54:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-29 05:54:35,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:54:35,319 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-11-29 05:54:35,327 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:54:35,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:54:35,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 05:54:35,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-29 05:54:35,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 05:54:35,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 05:54:35,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:54:35 BasicIcfg [2023-11-29 05:54:35,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:54:35,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:54:35,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:54:35,459 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:54:35,459 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:54:13" (3/4) ... [2023-11-29 05:54:35,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:54:35,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:54:35,463 INFO L158 Benchmark]: Toolchain (without parser) took 23197.54ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 115.3MB in the beginning and 145.2MB in the end (delta: -30.0MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,463 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:54:35,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.39ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 94.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.00ms. Allocated memory is still 155.2MB. Free memory was 94.8MB in the beginning and 92.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,464 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,464 INFO L158 Benchmark]: RCFGBuilder took 404.54ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 74.9MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,465 INFO L158 Benchmark]: TraceAbstraction took 22258.02ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 74.2MB in the beginning and 145.2MB in the end (delta: -71.1MB). Peak memory consumption was 164.9MB. Max. memory is 16.1GB. [2023-11-29 05:54:35,465 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 390.1MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:54:35,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.39ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 94.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.00ms. Allocated memory is still 155.2MB. Free memory was 94.8MB in the beginning and 92.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.54ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 74.9MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22258.02ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 74.2MB in the beginning and 145.2MB in the end (delta: -71.1MB). Peak memory consumption was 164.9MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 390.1MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~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 [2023-11-29 05:54:35,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 05:54:35,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-29 05:54:35,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 05:54:35,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 05:54:35,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 05:54:35,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-29 05:54:35,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 05:54:35,656 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: 22.0s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3948 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3887 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 1.3s 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, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1915 GetRequests, 1470 SyntacticMatches, 41 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13224 ImplicationChecksByTransitivity, 9.2s 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.0s 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! [2023-11-29 05:54:35,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d17be20-0e6c-4dd7-929c-a24e55c9237a/bin/uautomizer-verify-BQ2R08f2Ya/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