./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx --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 b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:45,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:45,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:18:45,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:45,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:45,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:45,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:45,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:45,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:45,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:45,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:45,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:45,556 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:45,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:45,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:45,559 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:18:45,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:45,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:18:45,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:45,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:45,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:45,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:45,563 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:18:45,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:18:45,564 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:18:45,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:45,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:45,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:45,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:45,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:45,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:45,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:45,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:45,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:45,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:45,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:18:45,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:45,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:45,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:45,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:45,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:45,571 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_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 [2023-11-21 22:18:45,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:46,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:46,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:46,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:46,025 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:46,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2023-11-21 22:18:49,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:49,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:49,591 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2023-11-21 22:18:49,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/data/6217750dd/6ac2e4bf71e043acb039946ce09c144a/FLAGcbc8c743c [2023-11-21 22:18:49,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/data/6217750dd/6ac2e4bf71e043acb039946ce09c144a [2023-11-21 22:18:49,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:49,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:49,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:49,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:49,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:49,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:49" (1/1) ... [2023-11-21 22:18:49,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56caff98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:49, skipping insertion in model container [2023-11-21 22:18:49,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:49" (1/1) ... [2023-11-21 22:18:49,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:50,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:50,184 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:50,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:50,292 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:50,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50 WrapperNode [2023-11-21 22:18:50,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:50,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:50,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:50,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:50,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,379 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-11-21 22:18:50,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:50,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:50,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:50,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:50,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:50,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:50,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:50,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:50,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (1/1) ... [2023-11-21 22:18:50,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:50,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:50,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:18:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 22:18:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 22:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:18:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:50,558 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:18:50,750 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:50,753 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:50,970 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:50,996 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:50,996 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:18:50,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:50 BoogieIcfgContainer [2023-11-21 22:18:50,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:51,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:18:51,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:18:51,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:18:51,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:49" (1/3) ... [2023-11-21 22:18:51,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b92fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:51, skipping insertion in model container [2023-11-21 22:18:51,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:50" (2/3) ... [2023-11-21 22:18:51,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b92fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:51, skipping insertion in model container [2023-11-21 22:18:51,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:50" (3/3) ... [2023-11-21 22:18:51,008 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race.i [2023-11-21 22:18:51,019 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:18:51,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:18:51,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 22:18:51,032 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:18:51,122 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-21 22:18:51,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 149 flow [2023-11-21 22:18:51,215 INFO L124 PetriNetUnfolderBase]: 5/99 cut-off events. [2023-11-21 22:18:51,216 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:18:51,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 5/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 203 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2023-11-21 22:18:51,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 71 transitions, 149 flow [2023-11-21 22:18:51,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 71 transitions, 149 flow [2023-11-21 22:18:51,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:51,246 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;@2659a939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:51,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-21 22:18:51,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:18:51,262 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2023-11-21 22:18:51,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:18:51,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:51,264 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] [2023-11-21 22:18:51,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-21 22:18:51,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash -995327657, now seen corresponding path program 1 times [2023-11-21 22:18:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:51,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479124708] [2023-11-21 22:18:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:51,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:51,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:51,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479124708] [2023-11-21 22:18:51,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479124708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:51,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:51,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:18:51,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008304563] [2023-11-21 22:18:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:51,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:18:51,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:18:51,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:18:51,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 71 [2023-11-21 22:18:51,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2023-11-21 22:18:51,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:51,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 71 [2023-11-21 22:18:51,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:51,884 INFO L124 PetriNetUnfolderBase]: 8/158 cut-off events. [2023-11-21 22:18:51,884 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:18:51,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 158 events. 8/158 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 434 event pairs, 0 based on Foata normal form. 5/147 useless extension candidates. Maximal degree in co-relation 133. Up to 17 conditions per place. [2023-11-21 22:18:51,887 INFO L140 encePairwiseOnDemand]: 64/71 looper letters, 10 selfloop transitions, 4 changer transitions 1/73 dead transitions. [2023-11-21 22:18:51,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 183 flow [2023-11-21 22:18:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:18:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:18:51,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2023-11-21 22:18:51,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8838028169014085 [2023-11-21 22:18:51,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 251 transitions. [2023-11-21 22:18:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 251 transitions. [2023-11-21 22:18:51,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:51,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 251 transitions. [2023-11-21 22:18:51,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2023-11-21 22:18:51,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2023-11-21 22:18:51,935 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2023-11-21 22:18:51,937 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 149 flow. Second operand 4 states and 251 transitions. [2023-11-21 22:18:51,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 183 flow [2023-11-21 22:18:51,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 73 transitions, 183 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:18:51,954 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 157 flow [2023-11-21 22:18:51,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2023-11-21 22:18:51,964 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 4 predicate places. [2023-11-21 22:18:51,965 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 157 flow [2023-11-21 22:18:51,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2023-11-21 22:18:51,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:51,966 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] [2023-11-21 22:18:51,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:18:51,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-21 22:18:51,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:51,969 INFO L85 PathProgramCache]: Analyzing trace with hash 877328067, now seen corresponding path program 1 times [2023-11-21 22:18:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715179150] [2023-11-21 22:18:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:52,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:52,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715179150] [2023-11-21 22:18:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715179150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:52,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:52,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870902305] [2023-11-21 22:18:52,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:52,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:52,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2023-11-21 22:18:52,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2023-11-21 22:18:52,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:52,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2023-11-21 22:18:52,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:52,169 INFO L124 PetriNetUnfolderBase]: 6/130 cut-off events. [2023-11-21 22:18:52,170 INFO L125 PetriNetUnfolderBase]: For 5/11 co-relation queries the response was YES. [2023-11-21 22:18:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 130 events. 6/130 cut-off events. For 5/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 335 event pairs, 4 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 128. Up to 21 conditions per place. [2023-11-21 22:18:52,171 INFO L140 encePairwiseOnDemand]: 66/71 looper letters, 9 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-11-21 22:18:52,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 72 transitions, 189 flow [2023-11-21 22:18:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2023-11-21 22:18:52,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8967136150234741 [2023-11-21 22:18:52,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 191 transitions. [2023-11-21 22:18:52,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 191 transitions. [2023-11-21 22:18:52,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:52,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 191 transitions. [2023-11-21 22:18:52,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-11-21 22:18:52,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2023-11-21 22:18:52,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2023-11-21 22:18:52,187 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 157 flow. Second operand 3 states and 191 transitions. [2023-11-21 22:18:52,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 72 transitions, 189 flow [2023-11-21 22:18:52,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 181 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:18:52,192 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 179 flow [2023-11-21 22:18:52,193 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2023-11-21 22:18:52,194 INFO L281 CegarLoopForPetriNet]: 71 programPoint places, 5 predicate places. [2023-11-21 22:18:52,194 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 179 flow [2023-11-21 22:18:52,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2023-11-21 22:18:52,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:52,195 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:52,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:18:52,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-21 22:18:52,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 821924751, now seen corresponding path program 1 times [2023-11-21 22:18:52,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:52,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625697158] [2023-11-21 22:18:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:52,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:52,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:52,329 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:18:52,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-11-21 22:18:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-11-21 22:18:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2023-11-21 22:18:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-11-21 22:18:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-11-21 22:18:52,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:18:52,333 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 22:18:52,336 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:18:52,336 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:18:52,366 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:18:52,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 194 flow [2023-11-21 22:18:52,431 INFO L124 PetriNetUnfolderBase]: 10/180 cut-off events. [2023-11-21 22:18:52,431 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:18:52,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 180 events. 10/180 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 457 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 101. Up to 8 conditions per place. [2023-11-21 22:18:52,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 89 transitions, 194 flow [2023-11-21 22:18:52,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 194 flow [2023-11-21 22:18:52,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:52,455 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;@2659a939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:52,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-21 22:18:52,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:18:52,461 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2023-11-21 22:18:52,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:18:52,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:52,462 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] [2023-11-21 22:18:52,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:52,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:52,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1981645751, now seen corresponding path program 1 times [2023-11-21 22:18:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:52,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961993966] [2023-11-21 22:18:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:52,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:52,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961993966] [2023-11-21 22:18:52,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961993966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:52,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:52,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:18:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289586577] [2023-11-21 22:18:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:52,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:18:52,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:18:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:18:52,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 89 [2023-11-21 22:18:52,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2023-11-21 22:18:52,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:52,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 89 [2023-11-21 22:18:52,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:52,826 INFO L124 PetriNetUnfolderBase]: 72/568 cut-off events. [2023-11-21 22:18:52,826 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-21 22:18:52,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 568 events. 72/568 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3491 event pairs, 20 based on Foata normal form. 16/535 useless extension candidates. Maximal degree in co-relation 189. Up to 106 conditions per place. [2023-11-21 22:18:52,836 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 18 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2023-11-21 22:18:52,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 94 transitions, 248 flow [2023-11-21 22:18:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:18:52,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:18:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2023-11-21 22:18:52,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8820224719101124 [2023-11-21 22:18:52,844 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2023-11-21 22:18:52,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2023-11-21 22:18:52,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:52,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2023-11-21 22:18:52,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2023-11-21 22:18:52,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2023-11-21 22:18:52,854 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2023-11-21 22:18:52,854 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 194 flow. Second operand 4 states and 314 transitions. [2023-11-21 22:18:52,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 94 transitions, 248 flow [2023-11-21 22:18:52,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:18:52,861 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 206 flow [2023-11-21 22:18:52,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2023-11-21 22:18:52,865 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-11-21 22:18:52,865 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 206 flow [2023-11-21 22:18:52,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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) [2023-11-21 22:18:52,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:52,866 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] [2023-11-21 22:18:52,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:18:52,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:52,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 773160268, now seen corresponding path program 1 times [2023-11-21 22:18:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:52,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462605973] [2023-11-21 22:18:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:52,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:52,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462605973] [2023-11-21 22:18:52,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462605973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:52,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:52,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:52,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862135278] [2023-11-21 22:18:52,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:52,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:52,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:52,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:52,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 89 [2023-11-21 22:18:52,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-11-21 22:18:52,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:52,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 89 [2023-11-21 22:18:52,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:53,120 INFO L124 PetriNetUnfolderBase]: 116/699 cut-off events. [2023-11-21 22:18:53,120 INFO L125 PetriNetUnfolderBase]: For 91/122 co-relation queries the response was YES. [2023-11-21 22:18:53,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 699 events. 116/699 cut-off events. For 91/122 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4591 event pairs, 52 based on Foata normal form. 1/608 useless extension candidates. Maximal degree in co-relation 921. Up to 185 conditions per place. [2023-11-21 22:18:53,126 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 18 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2023-11-21 22:18:53,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 96 transitions, 276 flow [2023-11-21 22:18:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2023-11-21 22:18:53,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898876404494382 [2023-11-21 22:18:53,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2023-11-21 22:18:53,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2023-11-21 22:18:53,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:53,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2023-11-21 22:18:53,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-11-21 22:18:53,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-21 22:18:53,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-21 22:18:53,132 INFO L175 Difference]: Start difference. First operand has 94 places, 88 transitions, 206 flow. Second operand 3 states and 240 transitions. [2023-11-21 22:18:53,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 96 transitions, 276 flow [2023-11-21 22:18:53,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 96 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:53,137 INFO L231 Difference]: Finished difference. Result has 96 places, 92 transitions, 238 flow [2023-11-21 22:18:53,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=96, PETRI_TRANSITIONS=92} [2023-11-21 22:18:53,138 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2023-11-21 22:18:53,139 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 92 transitions, 238 flow [2023-11-21 22:18:53,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-11-21 22:18:53,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:53,139 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] [2023-11-21 22:18:53,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:18:53,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:53,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:53,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1302159186, now seen corresponding path program 1 times [2023-11-21 22:18:53,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:53,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757847034] [2023-11-21 22:18:53,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:53,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:53,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:18:53,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:53,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757847034] [2023-11-21 22:18:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757847034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:53,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:53,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:18:53,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014663380] [2023-11-21 22:18:53,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:53,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:18:53,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:53,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:18:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:18:53,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 89 [2023-11-21 22:18:53,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 92 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2023-11-21 22:18:53,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:53,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 89 [2023-11-21 22:18:53,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:53,506 INFO L124 PetriNetUnfolderBase]: 63/581 cut-off events. [2023-11-21 22:18:53,506 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-11-21 22:18:53,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 581 events. 63/581 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3373 event pairs, 24 based on Foata normal form. 15/545 useless extension candidates. Maximal degree in co-relation 651. Up to 72 conditions per place. [2023-11-21 22:18:53,512 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 19 selfloop transitions, 4 changer transitions 3/103 dead transitions. [2023-11-21 22:18:53,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 318 flow [2023-11-21 22:18:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:18:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:18:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2023-11-21 22:18:53,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8848314606741573 [2023-11-21 22:18:53,515 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 315 transitions. [2023-11-21 22:18:53,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 315 transitions. [2023-11-21 22:18:53,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:53,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 315 transitions. [2023-11-21 22:18:53,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2023-11-21 22:18:53,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2023-11-21 22:18:53,518 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2023-11-21 22:18:53,518 INFO L175 Difference]: Start difference. First operand has 96 places, 92 transitions, 238 flow. Second operand 4 states and 315 transitions. [2023-11-21 22:18:53,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 318 flow [2023-11-21 22:18:53,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:53,525 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 244 flow [2023-11-21 22:18:53,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2023-11-21 22:18:53,528 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2023-11-21 22:18:53,528 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 244 flow [2023-11-21 22:18:53,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2023-11-21 22:18:53,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:53,529 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] [2023-11-21 22:18:53,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:18:53,530 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:53,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash -582072218, now seen corresponding path program 1 times [2023-11-21 22:18:53,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:53,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333039413] [2023-11-21 22:18:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:53,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333039413] [2023-11-21 22:18:53,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333039413] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:18:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777964004] [2023-11-21 22:18:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:53,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:18:53,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:53,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:18:53,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:18:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:53,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:18:53,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:18:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:53,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:18:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:54,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777964004] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:18:54,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:18:54,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-21 22:18:54,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758855824] [2023-11-21 22:18:54,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:18:54,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:18:54,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:18:54,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:18:54,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 89 [2023-11-21 22:18:54,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 244 flow. Second operand has 13 states, 13 states have (on average 70.92307692307692) internal successors, (922), 13 states have internal predecessors, (922), 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) [2023-11-21 22:18:54,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:54,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 89 [2023-11-21 22:18:54,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:54,379 INFO L124 PetriNetUnfolderBase]: 81/351 cut-off events. [2023-11-21 22:18:54,379 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-21 22:18:54,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 351 events. 81/351 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1827 event pairs, 6 based on Foata normal form. 15/347 useless extension candidates. Maximal degree in co-relation 550. Up to 56 conditions per place. [2023-11-21 22:18:54,383 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 28 selfloop transitions, 8 changer transitions 0/85 dead transitions. [2023-11-21 22:18:54,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 85 transitions, 276 flow [2023-11-21 22:18:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:18:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:18:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2023-11-21 22:18:54,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8179775280898877 [2023-11-21 22:18:54,387 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 728 transitions. [2023-11-21 22:18:54,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 728 transitions. [2023-11-21 22:18:54,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:54,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 728 transitions. [2023-11-21 22:18:54,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.8) internal successors, (728), 10 states have internal predecessors, (728), 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) [2023-11-21 22:18:54,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 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) [2023-11-21 22:18:54,394 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 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) [2023-11-21 22:18:54,394 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 244 flow. Second operand 10 states and 728 transitions. [2023-11-21 22:18:54,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 85 transitions, 276 flow [2023-11-21 22:18:54,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:18:54,399 INFO L231 Difference]: Finished difference. Result has 79 places, 65 transitions, 179 flow [2023-11-21 22:18:54,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=179, PETRI_PLACES=79, PETRI_TRANSITIONS=65} [2023-11-21 22:18:54,402 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -11 predicate places. [2023-11-21 22:18:54,402 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 179 flow [2023-11-21 22:18:54,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 70.92307692307692) internal successors, (922), 13 states have internal predecessors, (922), 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) [2023-11-21 22:18:54,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:54,403 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:54,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:18:54,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:18:54,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:54,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:54,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2036820572, now seen corresponding path program 1 times [2023-11-21 22:18:54,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:54,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39566424] [2023-11-21 22:18:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:54,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:18:54,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:54,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39566424] [2023-11-21 22:18:54,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39566424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:54,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:54,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060324654] [2023-11-21 22:18:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:54,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:54,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:54,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:54,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:54,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 89 [2023-11-21 22:18:54,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2023-11-21 22:18:54,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:54,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 89 [2023-11-21 22:18:54,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:54,735 INFO L124 PetriNetUnfolderBase]: 27/209 cut-off events. [2023-11-21 22:18:54,735 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2023-11-21 22:18:54,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 209 events. 27/209 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 785 event pairs, 16 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 340. Up to 55 conditions per place. [2023-11-21 22:18:54,737 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 13 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2023-11-21 22:18:54,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 70 transitions, 227 flow [2023-11-21 22:18:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2023-11-21 22:18:54,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8764044943820225 [2023-11-21 22:18:54,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2023-11-21 22:18:54,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2023-11-21 22:18:54,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:54,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2023-11-21 22:18:54,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-11-21 22:18:54,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-21 22:18:54,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-21 22:18:54,742 INFO L175 Difference]: Start difference. First operand has 79 places, 65 transitions, 179 flow. Second operand 3 states and 234 transitions. [2023-11-21 22:18:54,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 70 transitions, 227 flow [2023-11-21 22:18:54,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 210 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-21 22:18:54,745 INFO L231 Difference]: Finished difference. Result has 77 places, 68 transitions, 198 flow [2023-11-21 22:18:54,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2023-11-21 22:18:54,746 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -13 predicate places. [2023-11-21 22:18:54,747 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 198 flow [2023-11-21 22:18:54,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2023-11-21 22:18:54,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:54,747 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:54,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:18:54,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-21 22:18:54,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1227307193, now seen corresponding path program 1 times [2023-11-21 22:18:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762753979] [2023-11-21 22:18:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:54,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:54,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:54,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:54,784 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-11-21 22:18:54,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-11-21 22:18:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:18:54,786 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-21 22:18:54,787 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:18:54,787 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:18:54,828 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:18:54,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 241 flow [2023-11-21 22:18:54,885 INFO L124 PetriNetUnfolderBase]: 20/314 cut-off events. [2023-11-21 22:18:54,886 INFO L125 PetriNetUnfolderBase]: For 19/20 co-relation queries the response was YES. [2023-11-21 22:18:54,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 314 events. 20/314 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 989 event pairs, 1 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 188. Up to 16 conditions per place. [2023-11-21 22:18:54,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 241 flow [2023-11-21 22:18:54,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 241 flow [2023-11-21 22:18:54,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:54,891 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;@2659a939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:54,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-21 22:18:54,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:18:54,895 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2023-11-21 22:18:54,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:18:54,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:54,896 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] [2023-11-21 22:18:54,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:54,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1410510551, now seen corresponding path program 1 times [2023-11-21 22:18:54,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523935754] [2023-11-21 22:18:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:54,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523935754] [2023-11-21 22:18:54,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523935754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:54,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:54,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:18:54,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379434400] [2023-11-21 22:18:54,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:54,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:18:54,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:54,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:18:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:18:54,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-21 22:18:54,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:54,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:54,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-21 22:18:54,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:55,400 INFO L124 PetriNetUnfolderBase]: 412/2191 cut-off events. [2023-11-21 22:18:55,400 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2023-11-21 22:18:55,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2962 conditions, 2191 events. 412/2191 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 18587 event pairs, 175 based on Foata normal form. 63/2061 useless extension candidates. Maximal degree in co-relation 757. Up to 495 conditions per place. [2023-11-21 22:18:55,423 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 24 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2023-11-21 22:18:55,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 311 flow [2023-11-21 22:18:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:18:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:18:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2023-11-21 22:18:55,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8785046728971962 [2023-11-21 22:18:55,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2023-11-21 22:18:55,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2023-11-21 22:18:55,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:55,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2023-11-21 22:18:55,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2023-11-21 22:18:55,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-21 22:18:55,431 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-21 22:18:55,431 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 241 flow. Second operand 4 states and 376 transitions. [2023-11-21 22:18:55,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 311 flow [2023-11-21 22:18:55,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 114 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:18:55,436 INFO L231 Difference]: Finished difference. Result has 113 places, 106 transitions, 253 flow [2023-11-21 22:18:55,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=113, PETRI_TRANSITIONS=106} [2023-11-21 22:18:55,438 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2023-11-21 22:18:55,438 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 106 transitions, 253 flow [2023-11-21 22:18:55,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:55,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:55,439 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] [2023-11-21 22:18:55,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:18:55,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:55,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash -392825721, now seen corresponding path program 1 times [2023-11-21 22:18:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:55,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742072556] [2023-11-21 22:18:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742072556] [2023-11-21 22:18:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742072556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:55,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:55,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:55,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108436854] [2023-11-21 22:18:55,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:55,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:55,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:55,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:55,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2023-11-21 22:18:55,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 106 transitions, 253 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) [2023-11-21 22:18:55,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:55,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2023-11-21 22:18:55,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:56,408 INFO L124 PetriNetUnfolderBase]: 1023/4264 cut-off events. [2023-11-21 22:18:56,409 INFO L125 PetriNetUnfolderBase]: For 683/896 co-relation queries the response was YES. [2023-11-21 22:18:56,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6254 conditions, 4264 events. 1023/4264 cut-off events. For 683/896 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 41887 event pairs, 560 based on Foata normal form. 1/3721 useless extension candidates. Maximal degree in co-relation 6048. Up to 1329 conditions per place. [2023-11-21 22:18:56,453 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 27 selfloop transitions, 6 changer transitions 0/119 dead transitions. [2023-11-21 22:18:56,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 363 flow [2023-11-21 22:18:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2023-11-21 22:18:56,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9003115264797508 [2023-11-21 22:18:56,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2023-11-21 22:18:56,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2023-11-21 22:18:56,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:56,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2023-11-21 22:18:56,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2023-11-21 22:18:56,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:18:56,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:18:56,461 INFO L175 Difference]: Start difference. First operand has 113 places, 106 transitions, 253 flow. Second operand 3 states and 289 transitions. [2023-11-21 22:18:56,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 363 flow [2023-11-21 22:18:56,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 119 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:56,468 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 293 flow [2023-11-21 22:18:56,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2023-11-21 22:18:56,469 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2023-11-21 22:18:56,470 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 293 flow [2023-11-21 22:18:56,470 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) [2023-11-21 22:18:56,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:56,470 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] [2023-11-21 22:18:56,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:18:56,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:56,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1472815426, now seen corresponding path program 1 times [2023-11-21 22:18:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:56,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075605013] [2023-11-21 22:18:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:56,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:18:56,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075605013] [2023-11-21 22:18:56,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075605013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:56,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:56,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:18:56,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69032442] [2023-11-21 22:18:56,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:56,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:18:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:56,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:18:56,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:18:56,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-11-21 22:18:56,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-11-21 22:18:56,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:56,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-11-21 22:18:56,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:57,206 INFO L124 PetriNetUnfolderBase]: 618/3166 cut-off events. [2023-11-21 22:18:57,207 INFO L125 PetriNetUnfolderBase]: For 436/440 co-relation queries the response was YES. [2023-11-21 22:18:57,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4697 conditions, 3166 events. 618/3166 cut-off events. For 436/440 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 29511 event pairs, 247 based on Foata normal form. 63/2905 useless extension candidates. Maximal degree in co-relation 3847. Up to 511 conditions per place. [2023-11-21 22:18:57,242 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 31 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2023-11-21 22:18:57,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 127 transitions, 404 flow [2023-11-21 22:18:57,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:18:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:18:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2023-11-21 22:18:57,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2023-11-21 22:18:57,245 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2023-11-21 22:18:57,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2023-11-21 22:18:57,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:57,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2023-11-21 22:18:57,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2023-11-21 22:18:57,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-21 22:18:57,249 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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) [2023-11-21 22:18:57,250 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 293 flow. Second operand 4 states and 380 transitions. [2023-11-21 22:18:57,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 127 transitions, 404 flow [2023-11-21 22:18:57,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 127 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:57,257 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 297 flow [2023-11-21 22:18:57,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2023-11-21 22:18:57,259 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2023-11-21 22:18:57,259 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 297 flow [2023-11-21 22:18:57,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-11-21 22:18:57,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:57,260 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] [2023-11-21 22:18:57,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:18:57,260 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:57,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:57,261 INFO L85 PathProgramCache]: Analyzing trace with hash 639266657, now seen corresponding path program 1 times [2023-11-21 22:18:57,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:57,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994239234] [2023-11-21 22:18:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:57,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:57,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994239234] [2023-11-21 22:18:57,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994239234] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:18:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478990341] [2023-11-21 22:18:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:57,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:18:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:57,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:18:57,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:18:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:57,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:18:57,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:18:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:57,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:18:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:57,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478990341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:18:57,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:18:57,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-21 22:18:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245247030] [2023-11-21 22:18:57,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:18:57,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:18:57,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:57,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:18:57,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:18:57,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 107 [2023-11-21 22:18:57,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 297 flow. Second operand has 13 states, 13 states have (on average 84.92307692307692) internal successors, (1104), 13 states have internal predecessors, (1104), 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) [2023-11-21 22:18:57,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:57,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 107 [2023-11-21 22:18:57,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:58,628 INFO L124 PetriNetUnfolderBase]: 1016/4333 cut-off events. [2023-11-21 22:18:58,628 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES. [2023-11-21 22:18:58,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6604 conditions, 4333 events. 1016/4333 cut-off events. For 584/584 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 40828 event pairs, 151 based on Foata normal form. 15/3810 useless extension candidates. Maximal degree in co-relation 3426. Up to 749 conditions per place. [2023-11-21 22:18:58,669 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 50 selfloop transitions, 11 changer transitions 0/150 dead transitions. [2023-11-21 22:18:58,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 150 transitions, 497 flow [2023-11-21 22:18:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:18:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:18:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 893 transitions. [2023-11-21 22:18:58,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8345794392523365 [2023-11-21 22:18:58,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 893 transitions. [2023-11-21 22:18:58,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 893 transitions. [2023-11-21 22:18:58,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:58,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 893 transitions. [2023-11-21 22:18:58,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.3) internal successors, (893), 10 states have internal predecessors, (893), 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) [2023-11-21 22:18:58,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-21 22:18:58,681 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-21 22:18:58,681 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 297 flow. Second operand 10 states and 893 transitions. [2023-11-21 22:18:58,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 150 transitions, 497 flow [2023-11-21 22:18:58,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 491 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:58,690 INFO L231 Difference]: Finished difference. Result has 127 places, 118 transitions, 347 flow [2023-11-21 22:18:58,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=347, PETRI_PLACES=127, PETRI_TRANSITIONS=118} [2023-11-21 22:18:58,691 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 18 predicate places. [2023-11-21 22:18:58,691 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 118 transitions, 347 flow [2023-11-21 22:18:58,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 84.92307692307692) internal successors, (1104), 13 states have internal predecessors, (1104), 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) [2023-11-21 22:18:58,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:58,692 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:58,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:18:58,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-21 22:18:58,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:58,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash -209970225, now seen corresponding path program 1 times [2023-11-21 22:18:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:58,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360546913] [2023-11-21 22:18:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:18:58,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360546913] [2023-11-21 22:18:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360546913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:58,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:58,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432813596] [2023-11-21 22:18:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:58,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:58,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:58,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:59,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2023-11-21 22:18:59,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2023-11-21 22:18:59,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:59,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2023-11-21 22:18:59,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:59,690 INFO L124 PetriNetUnfolderBase]: 916/4000 cut-off events. [2023-11-21 22:18:59,690 INFO L125 PetriNetUnfolderBase]: For 1218/1246 co-relation queries the response was YES. [2023-11-21 22:18:59,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6786 conditions, 4000 events. 916/4000 cut-off events. For 1218/1246 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 38826 event pairs, 539 based on Foata normal form. 1/3627 useless extension candidates. Maximal degree in co-relation 6142. Up to 1192 conditions per place. [2023-11-21 22:18:59,731 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 28 selfloop transitions, 9 changer transitions 0/132 dead transitions. [2023-11-21 22:18:59,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 132 transitions, 472 flow [2023-11-21 22:18:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-11-21 22:18:59,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.897196261682243 [2023-11-21 22:18:59,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-11-21 22:18:59,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-11-21 22:18:59,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:59,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-11-21 22:18:59,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2023-11-21 22:18:59,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:18:59,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:18:59,736 INFO L175 Difference]: Start difference. First operand has 127 places, 118 transitions, 347 flow. Second operand 3 states and 288 transitions. [2023-11-21 22:18:59,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 132 transitions, 472 flow [2023-11-21 22:18:59,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 132 transitions, 464 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:59,744 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 415 flow [2023-11-21 22:18:59,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2023-11-21 22:18:59,746 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2023-11-21 22:18:59,746 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 415 flow [2023-11-21 22:18:59,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2023-11-21 22:18:59,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:59,746 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:59,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:18:59,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:18:59,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:59,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1406139107, now seen corresponding path program 1 times [2023-11-21 22:18:59,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:59,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965921341] [2023-11-21 22:18:59,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:59,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:18:59,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:59,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965921341] [2023-11-21 22:18:59,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965921341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:59,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:59,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:18:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515910136] [2023-11-21 22:18:59,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:59,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:59,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:59,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:59,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:59,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 107 [2023-11-21 22:18:59,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-11-21 22:18:59,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:59,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 107 [2023-11-21 22:18:59,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:00,216 INFO L124 PetriNetUnfolderBase]: 98/1340 cut-off events. [2023-11-21 22:19:00,216 INFO L125 PetriNetUnfolderBase]: For 340/382 co-relation queries the response was YES. [2023-11-21 22:19:00,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 1340 events. 98/1340 cut-off events. For 340/382 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10113 event pairs, 26 based on Foata normal form. 20/1253 useless extension candidates. Maximal degree in co-relation 922. Up to 100 conditions per place. [2023-11-21 22:19:00,228 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 12 selfloop transitions, 6 changer transitions 0/124 dead transitions. [2023-11-21 22:19:00,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 124 transitions, 436 flow [2023-11-21 22:19:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:00,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:00,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2023-11-21 22:19:00,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9252336448598131 [2023-11-21 22:19:00,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2023-11-21 22:19:00,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2023-11-21 22:19:00,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:00,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2023-11-21 22:19:00,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2023-11-21 22:19:00,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:19:00,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:19:00,235 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 415 flow. Second operand 3 states and 297 transitions. [2023-11-21 22:19:00,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 124 transitions, 436 flow [2023-11-21 22:19:00,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 424 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:00,242 INFO L231 Difference]: Finished difference. Result has 129 places, 119 transitions, 369 flow [2023-11-21 22:19:00,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=129, PETRI_TRANSITIONS=119} [2023-11-21 22:19:00,243 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2023-11-21 22:19:00,243 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 119 transitions, 369 flow [2023-11-21 22:19:00,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-11-21 22:19:00,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:00,244 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:00,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:19:00,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:19:00,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1248749110, now seen corresponding path program 1 times [2023-11-21 22:19:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:00,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992351842] [2023-11-21 22:19:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:19:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992351842] [2023-11-21 22:19:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992351842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:00,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:00,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791963465] [2023-11-21 22:19:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:00,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:00,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:00,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:00,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2023-11-21 22:19:00,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 119 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-11-21 22:19:00,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:00,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2023-11-21 22:19:00,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:00,612 INFO L124 PetriNetUnfolderBase]: 177/1400 cut-off events. [2023-11-21 22:19:00,613 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2023-11-21 22:19:00,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2461 conditions, 1400 events. 177/1400 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11095 event pairs, 135 based on Foata normal form. 0/1290 useless extension candidates. Maximal degree in co-relation 2169. Up to 336 conditions per place. [2023-11-21 22:19:00,624 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 23 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-11-21 22:19:00,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 124 transitions, 443 flow [2023-11-21 22:19:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-11-21 22:19:00,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8753894080996885 [2023-11-21 22:19:00,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-11-21 22:19:00,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-11-21 22:19:00,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:00,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-11-21 22:19:00,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-11-21 22:19:00,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:19:00,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-21 22:19:00,631 INFO L175 Difference]: Start difference. First operand has 129 places, 119 transitions, 369 flow. Second operand 3 states and 281 transitions. [2023-11-21 22:19:00,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 124 transitions, 443 flow [2023-11-21 22:19:00,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 124 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:19:00,638 INFO L231 Difference]: Finished difference. Result has 132 places, 122 transitions, 397 flow [2023-11-21 22:19:00,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2023-11-21 22:19:00,640 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 23 predicate places. [2023-11-21 22:19:00,640 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 397 flow [2023-11-21 22:19:00,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-11-21 22:19:00,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:00,641 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:00,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:19:00,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-21 22:19:00,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash -548924576, now seen corresponding path program 1 times [2023-11-21 22:19:00,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:00,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840377972] [2023-11-21 22:19:00,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:00,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:00,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:00,699 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:19:00,699 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-21 22:19:00,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-21 22:19:00,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-11-21 22:19:00,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-21 22:19:00,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-21 22:19:00,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-21 22:19:00,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-21 22:19:00,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:19:00,701 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:00,702 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:19:00,703 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:19:00,742 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 22:19:00,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 125 transitions, 290 flow [2023-11-21 22:19:00,836 INFO L124 PetriNetUnfolderBase]: 42/556 cut-off events. [2023-11-21 22:19:00,836 INFO L125 PetriNetUnfolderBase]: For 48/49 co-relation queries the response was YES. [2023-11-21 22:19:00,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 556 events. 42/556 cut-off events. For 48/49 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2238 event pairs, 6 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 334. Up to 32 conditions per place. [2023-11-21 22:19:00,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 125 transitions, 290 flow [2023-11-21 22:19:00,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 125 transitions, 290 flow [2023-11-21 22:19:00,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:00,845 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;@2659a939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:00,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-21 22:19:00,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:19:00,849 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2023-11-21 22:19:00,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:19:00,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:00,850 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] [2023-11-21 22:19:00,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:00,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:00,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1586234039, now seen corresponding path program 1 times [2023-11-21 22:19:00,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:00,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945768475] [2023-11-21 22:19:00,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:00,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945768475] [2023-11-21 22:19:00,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945768475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:00,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:00,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:00,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321729548] [2023-11-21 22:19:00,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:00,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:00,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 125 [2023-11-21 22:19:00,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 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) [2023-11-21 22:19:00,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:00,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 125 [2023-11-21 22:19:00,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:02,403 INFO L124 PetriNetUnfolderBase]: 2015/8288 cut-off events. [2023-11-21 22:19:02,403 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2023-11-21 22:19:02,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11683 conditions, 8288 events. 2015/8288 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 87297 event pairs, 996 based on Foata normal form. 245/7797 useless extension candidates. Maximal degree in co-relation 3032. Up to 2117 conditions per place. [2023-11-21 22:19:02,487 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 30 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2023-11-21 22:19:02,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 134 transitions, 376 flow [2023-11-21 22:19:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:19:02,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2023-11-21 22:19:02,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.876 [2023-11-21 22:19:02,491 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 438 transitions. [2023-11-21 22:19:02,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 438 transitions. [2023-11-21 22:19:02,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:02,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 438 transitions. [2023-11-21 22:19:02,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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) [2023-11-21 22:19:02,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2023-11-21 22:19:02,495 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2023-11-21 22:19:02,495 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 290 flow. Second operand 4 states and 438 transitions. [2023-11-21 22:19:02,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 134 transitions, 376 flow [2023-11-21 22:19:02,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 134 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:19:02,500 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 302 flow [2023-11-21 22:19:02,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2023-11-21 22:19:02,502 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 4 predicate places. [2023-11-21 22:19:02,502 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 302 flow [2023-11-21 22:19:02,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 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) [2023-11-21 22:19:02,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:02,503 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] [2023-11-21 22:19:02,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:19:02,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:02,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2096593884, now seen corresponding path program 1 times [2023-11-21 22:19:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333417402] [2023-11-21 22:19:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:02,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:02,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333417402] [2023-11-21 22:19:02,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333417402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:02,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:02,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:02,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797032446] [2023-11-21 22:19:02,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:02,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:02,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:02,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:02,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2023-11-21 22:19:02,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2023-11-21 22:19:02,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:02,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2023-11-21 22:19:02,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:06,289 INFO L124 PetriNetUnfolderBase]: 7178/24007 cut-off events. [2023-11-21 22:19:06,289 INFO L125 PetriNetUnfolderBase]: For 4871/5497 co-relation queries the response was YES. [2023-11-21 22:19:06,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36328 conditions, 24007 events. 7178/24007 cut-off events. For 4871/5497 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 297433 event pairs, 4490 based on Foata normal form. 2/21271 useless extension candidates. Maximal degree in co-relation 35461. Up to 8464 conditions per place. [2023-11-21 22:19:06,501 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 36 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2023-11-21 22:19:06,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 142 transitions, 454 flow [2023-11-21 22:19:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:06,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-11-21 22:19:06,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9013333333333333 [2023-11-21 22:19:06,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-11-21 22:19:06,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-11-21 22:19:06,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:06,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-11-21 22:19:06,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-21 22:19:06,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:06,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:06,510 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 302 flow. Second operand 3 states and 338 transitions. [2023-11-21 22:19:06,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 142 transitions, 454 flow [2023-11-21 22:19:06,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 448 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:06,536 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 350 flow [2023-11-21 22:19:06,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2023-11-21 22:19:06,537 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2023-11-21 22:19:06,537 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 350 flow [2023-11-21 22:19:06,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2023-11-21 22:19:06,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:06,538 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] [2023-11-21 22:19:06,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:19:06,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:06,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash 482296014, now seen corresponding path program 1 times [2023-11-21 22:19:06,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:06,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162676776] [2023-11-21 22:19:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:19:06,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:06,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162676776] [2023-11-21 22:19:06,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162676776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:06,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:06,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:06,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199481751] [2023-11-21 22:19:06,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:06,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:06,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:06,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:06,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:06,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 125 [2023-11-21 22:19:06,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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) [2023-11-21 22:19:06,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:06,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 125 [2023-11-21 22:19:06,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:09,556 INFO L124 PetriNetUnfolderBase]: 4997/18928 cut-off events. [2023-11-21 22:19:09,556 INFO L125 PetriNetUnfolderBase]: For 2714/2778 co-relation queries the response was YES. [2023-11-21 22:19:09,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28944 conditions, 18928 events. 4997/18928 cut-off events. For 2714/2778 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 235168 event pairs, 2028 based on Foata normal form. 259/17058 useless extension candidates. Maximal degree in co-relation 23406. Up to 3632 conditions per place. [2023-11-21 22:19:09,870 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 40 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2023-11-21 22:19:09,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 151 transitions, 492 flow [2023-11-21 22:19:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:19:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2023-11-21 22:19:09,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.89 [2023-11-21 22:19:09,873 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2023-11-21 22:19:09,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2023-11-21 22:19:09,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:09,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2023-11-21 22:19:09,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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) [2023-11-21 22:19:09,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2023-11-21 22:19:09,878 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2023-11-21 22:19:09,878 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 350 flow. Second operand 4 states and 445 transitions. [2023-11-21 22:19:09,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 151 transitions, 492 flow [2023-11-21 22:19:09,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 151 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:09,896 INFO L231 Difference]: Finished difference. Result has 136 places, 131 transitions, 352 flow [2023-11-21 22:19:09,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=136, PETRI_TRANSITIONS=131} [2023-11-21 22:19:09,897 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 8 predicate places. [2023-11-21 22:19:09,898 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 131 transitions, 352 flow [2023-11-21 22:19:09,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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) [2023-11-21 22:19:09,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:09,898 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] [2023-11-21 22:19:09,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:19:09,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:09,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:09,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1312798766, now seen corresponding path program 1 times [2023-11-21 22:19:09,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:09,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385429620] [2023-11-21 22:19:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:09,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:09,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:09,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385429620] [2023-11-21 22:19:09,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385429620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:09,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055210459] [2023-11-21 22:19:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:09,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:09,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:09,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:10,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:19:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:10,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:19:10,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:10,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055210459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:10,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:10,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-21 22:19:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125247235] [2023-11-21 22:19:10,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:10,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:19:10,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:19:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:19:10,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 125 [2023-11-21 22:19:10,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 131 transitions, 352 flow. Second operand has 13 states, 13 states have (on average 98.92307692307692) internal successors, (1286), 13 states have internal predecessors, (1286), 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) [2023-11-21 22:19:10,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:10,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 125 [2023-11-21 22:19:10,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:14,167 INFO L124 PetriNetUnfolderBase]: 6986/24819 cut-off events. [2023-11-21 22:19:14,167 INFO L125 PetriNetUnfolderBase]: For 3247/3247 co-relation queries the response was YES. [2023-11-21 22:19:14,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38373 conditions, 24819 events. 6986/24819 cut-off events. For 3247/3247 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 311396 event pairs, 1505 based on Foata normal form. 15/21402 useless extension candidates. Maximal degree in co-relation 17727. Up to 4886 conditions per place. [2023-11-21 22:19:14,377 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 58 selfloop transitions, 11 changer transitions 0/173 dead transitions. [2023-11-21 22:19:14,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 173 transitions, 576 flow [2023-11-21 22:19:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:19:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:19:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1041 transitions. [2023-11-21 22:19:14,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8328 [2023-11-21 22:19:14,382 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1041 transitions. [2023-11-21 22:19:14,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1041 transitions. [2023-11-21 22:19:14,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:14,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1041 transitions. [2023-11-21 22:19:14,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 104.1) internal successors, (1041), 10 states have internal predecessors, (1041), 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) [2023-11-21 22:19:14,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2023-11-21 22:19:14,391 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2023-11-21 22:19:14,391 INFO L175 Difference]: Start difference. First operand has 136 places, 131 transitions, 352 flow. Second operand 10 states and 1041 transitions. [2023-11-21 22:19:14,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 173 transitions, 576 flow [2023-11-21 22:19:14,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 173 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:14,434 INFO L231 Difference]: Finished difference. Result has 146 places, 137 transitions, 402 flow [2023-11-21 22:19:14,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=402, PETRI_PLACES=146, PETRI_TRANSITIONS=137} [2023-11-21 22:19:14,435 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 18 predicate places. [2023-11-21 22:19:14,435 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 137 transitions, 402 flow [2023-11-21 22:19:14,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 98.92307692307692) internal successors, (1286), 13 states have internal predecessors, (1286), 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) [2023-11-21 22:19:14,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:14,436 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:14,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:14,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-21 22:19:14,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:14,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:14,661 INFO L85 PathProgramCache]: Analyzing trace with hash -187959460, now seen corresponding path program 1 times [2023-11-21 22:19:14,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:14,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184072715] [2023-11-21 22:19:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:14,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:19:14,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:14,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184072715] [2023-11-21 22:19:14,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184072715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:14,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:14,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:14,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794477033] [2023-11-21 22:19:14,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:14,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:14,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:14,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:14,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:14,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2023-11-21 22:19:14,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 137 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2023-11-21 22:19:14,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:14,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2023-11-21 22:19:14,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:19,202 INFO L124 PetriNetUnfolderBase]: 8531/31196 cut-off events. [2023-11-21 22:19:19,202 INFO L125 PetriNetUnfolderBase]: For 11473/13428 co-relation queries the response was YES. [2023-11-21 22:19:19,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53189 conditions, 31196 events. 8531/31196 cut-off events. For 11473/13428 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 417706 event pairs, 4887 based on Foata normal form. 23/27760 useless extension candidates. Maximal degree in co-relation 16780. Up to 9853 conditions per place. [2023-11-21 22:19:19,721 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 38 selfloop transitions, 11 changer transitions 0/157 dead transitions. [2023-11-21 22:19:19,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 157 transitions, 579 flow [2023-11-21 22:19:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:19,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-11-21 22:19:19,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8986666666666666 [2023-11-21 22:19:19,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-11-21 22:19:19,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-11-21 22:19:19,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:19,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-11-21 22:19:19,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-11-21 22:19:19,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:19,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:19,728 INFO L175 Difference]: Start difference. First operand has 146 places, 137 transitions, 402 flow. Second operand 3 states and 337 transitions. [2023-11-21 22:19:19,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 157 transitions, 579 flow [2023-11-21 22:19:19,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 157 transitions, 571 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:19,748 INFO L231 Difference]: Finished difference. Result has 148 places, 146 transitions, 490 flow [2023-11-21 22:19:19,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=148, PETRI_TRANSITIONS=146} [2023-11-21 22:19:19,749 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 20 predicate places. [2023-11-21 22:19:19,749 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 146 transitions, 490 flow [2023-11-21 22:19:19,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2023-11-21 22:19:19,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:19,750 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:19:19,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:19,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash 975486928, now seen corresponding path program 1 times [2023-11-21 22:19:19,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:19,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067419733] [2023-11-21 22:19:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:19:19,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:19,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067419733] [2023-11-21 22:19:19,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067419733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:19,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:19,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:19,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431321737] [2023-11-21 22:19:19,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:19,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:19,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:19,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 125 [2023-11-21 22:19:19,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2023-11-21 22:19:19,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:19,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 125 [2023-11-21 22:19:19,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:20,568 INFO L124 PetriNetUnfolderBase]: 472/4778 cut-off events. [2023-11-21 22:19:20,568 INFO L125 PetriNetUnfolderBase]: For 1516/1591 co-relation queries the response was YES. [2023-11-21 22:19:20,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7397 conditions, 4778 events. 472/4778 cut-off events. For 1516/1591 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 52447 event pairs, 234 based on Foata normal form. 128/4529 useless extension candidates. Maximal degree in co-relation 5367. Up to 454 conditions per place. [2023-11-21 22:19:20,599 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 16 selfloop transitions, 8 changer transitions 0/144 dead transitions. [2023-11-21 22:19:20,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 517 flow [2023-11-21 22:19:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-11-21 22:19:20,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9226666666666666 [2023-11-21 22:19:20,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-11-21 22:19:20,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-11-21 22:19:20,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:20,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-11-21 22:19:20,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-11-21 22:19:20,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:20,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:20,606 INFO L175 Difference]: Start difference. First operand has 148 places, 146 transitions, 490 flow. Second operand 3 states and 346 transitions. [2023-11-21 22:19:20,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 517 flow [2023-11-21 22:19:20,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 144 transitions, 505 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:20,625 INFO L231 Difference]: Finished difference. Result has 148 places, 137 transitions, 426 flow [2023-11-21 22:19:20,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=148, PETRI_TRANSITIONS=137} [2023-11-21 22:19:20,626 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 20 predicate places. [2023-11-21 22:19:20,626 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 137 transitions, 426 flow [2023-11-21 22:19:20,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2023-11-21 22:19:20,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:20,627 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:20,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:19:20,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:20,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2099568253, now seen corresponding path program 1 times [2023-11-21 22:19:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467771828] [2023-11-21 22:19:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:19:20,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:20,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467771828] [2023-11-21 22:19:20,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467771828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:20,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:20,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:20,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698570339] [2023-11-21 22:19:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:20,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:20,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:20,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:20,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:20,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2023-11-21 22:19:20,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:20,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:20,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2023-11-21 22:19:20,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:21,608 INFO L124 PetriNetUnfolderBase]: 928/5614 cut-off events. [2023-11-21 22:19:21,609 INFO L125 PetriNetUnfolderBase]: For 3543/3583 co-relation queries the response was YES. [2023-11-21 22:19:21,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10224 conditions, 5614 events. 928/5614 cut-off events. For 3543/3583 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 63295 event pairs, 707 based on Foata normal form. 2/5113 useless extension candidates. Maximal degree in co-relation 7438. Up to 1545 conditions per place. [2023-11-21 22:19:21,641 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 30 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-11-21 22:19:21,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 530 flow [2023-11-21 22:19:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:21,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2023-11-21 22:19:21,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.872 [2023-11-21 22:19:21,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2023-11-21 22:19:21,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2023-11-21 22:19:21,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:21,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2023-11-21 22:19:21,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-11-21 22:19:21,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:21,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:21,647 INFO L175 Difference]: Start difference. First operand has 148 places, 137 transitions, 426 flow. Second operand 3 states and 327 transitions. [2023-11-21 22:19:21,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 530 flow [2023-11-21 22:19:21,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:19:21,659 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 452 flow [2023-11-21 22:19:21,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2023-11-21 22:19:21,660 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 23 predicate places. [2023-11-21 22:19:21,660 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 452 flow [2023-11-21 22:19:21,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:21,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:21,661 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] [2023-11-21 22:19:21,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:19:21,662 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:21,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:21,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1054228061, now seen corresponding path program 1 times [2023-11-21 22:19:21,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:21,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332990730] [2023-11-21 22:19:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:21,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:21,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:21,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332990730] [2023-11-21 22:19:21,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332990730] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:21,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200217735] [2023-11-21 22:19:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:21,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:21,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:19:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:21,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:21,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:22,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:22,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200217735] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:22,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:22,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2023-11-21 22:19:22,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006446693] [2023-11-21 22:19:22,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:22,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-21 22:19:22,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:22,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-21 22:19:22,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:19:22,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 125 [2023-11-21 22:19:22,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 452 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 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) [2023-11-21 22:19:22,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:22,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 125 [2023-11-21 22:19:22,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:23,851 INFO L124 PetriNetUnfolderBase]: 1216/7900 cut-off events. [2023-11-21 22:19:23,851 INFO L125 PetriNetUnfolderBase]: For 3282/3529 co-relation queries the response was YES. [2023-11-21 22:19:23,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13529 conditions, 7900 events. 1216/7900 cut-off events. For 3282/3529 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 85701 event pairs, 179 based on Foata normal form. 20/7197 useless extension candidates. Maximal degree in co-relation 5310. Up to 893 conditions per place. [2023-11-21 22:19:23,920 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 84 selfloop transitions, 14 changer transitions 1/206 dead transitions. [2023-11-21 22:19:23,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 206 transitions, 858 flow [2023-11-21 22:19:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:19:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-21 22:19:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1458 transitions. [2023-11-21 22:19:23,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8331428571428572 [2023-11-21 22:19:23,929 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1458 transitions. [2023-11-21 22:19:23,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1458 transitions. [2023-11-21 22:19:23,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:23,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1458 transitions. [2023-11-21 22:19:23,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 104.14285714285714) internal successors, (1458), 14 states have internal predecessors, (1458), 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) [2023-11-21 22:19:23,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 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) [2023-11-21 22:19:23,960 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 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) [2023-11-21 22:19:23,961 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 452 flow. Second operand 14 states and 1458 transitions. [2023-11-21 22:19:23,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 206 transitions, 858 flow [2023-11-21 22:19:23,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 206 transitions, 846 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:23,976 INFO L231 Difference]: Finished difference. Result has 166 places, 144 transitions, 507 flow [2023-11-21 22:19:23,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=507, PETRI_PLACES=166, PETRI_TRANSITIONS=144} [2023-11-21 22:19:23,977 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 38 predicate places. [2023-11-21 22:19:23,977 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 144 transitions, 507 flow [2023-11-21 22:19:23,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 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) [2023-11-21 22:19:23,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:23,978 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 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] [2023-11-21 22:19:24,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:24,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 22:19:24,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:24,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash 583837785, now seen corresponding path program 1 times [2023-11-21 22:19:24,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:24,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94299482] [2023-11-21 22:19:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:24,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-21 22:19:24,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:24,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94299482] [2023-11-21 22:19:24,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94299482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:24,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:24,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:24,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406642781] [2023-11-21 22:19:24,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:24,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:24,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:24,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:24,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2023-11-21 22:19:24,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 144 transitions, 507 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2023-11-21 22:19:24,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:24,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2023-11-21 22:19:24,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:25,228 INFO L124 PetriNetUnfolderBase]: 883/5676 cut-off events. [2023-11-21 22:19:25,228 INFO L125 PetriNetUnfolderBase]: For 4246/4270 co-relation queries the response was YES. [2023-11-21 22:19:25,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10741 conditions, 5676 events. 883/5676 cut-off events. For 4246/4270 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 62651 event pairs, 677 based on Foata normal form. 1/5182 useless extension candidates. Maximal degree in co-relation 9955. Up to 1476 conditions per place. [2023-11-21 22:19:25,275 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 30 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2023-11-21 22:19:25,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 150 transitions, 602 flow [2023-11-21 22:19:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2023-11-21 22:19:25,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8693333333333333 [2023-11-21 22:19:25,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2023-11-21 22:19:25,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2023-11-21 22:19:25,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:25,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2023-11-21 22:19:25,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-11-21 22:19:25,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:25,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:25,289 INFO L175 Difference]: Start difference. First operand has 166 places, 144 transitions, 507 flow. Second operand 3 states and 326 transitions. [2023-11-21 22:19:25,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 150 transitions, 602 flow [2023-11-21 22:19:25,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 150 transitions, 584 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-21 22:19:25,328 INFO L231 Difference]: Finished difference. Result has 163 places, 147 transitions, 525 flow [2023-11-21 22:19:25,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=163, PETRI_TRANSITIONS=147} [2023-11-21 22:19:25,329 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 35 predicate places. [2023-11-21 22:19:25,330 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 147 transitions, 525 flow [2023-11-21 22:19:25,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2023-11-21 22:19:25,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:25,330 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:25,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-21 22:19:25,331 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:25,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1106184102, now seen corresponding path program 1 times [2023-11-21 22:19:25,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:25,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945177149] [2023-11-21 22:19:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:25,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:25,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945177149] [2023-11-21 22:19:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945177149] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:25,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287739308] [2023-11-21 22:19:25,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:25,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:25,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:25,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:25,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:19:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:19:25,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:26,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:26,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287739308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:26,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:19:26,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2023-11-21 22:19:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153023467] [2023-11-21 22:19:26,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:26,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:19:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:19:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:19:26,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2023-11-21 22:19:26,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 147 transitions, 525 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 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) [2023-11-21 22:19:26,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:26,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2023-11-21 22:19:26,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:27,779 INFO L124 PetriNetUnfolderBase]: 1122/7422 cut-off events. [2023-11-21 22:19:27,779 INFO L125 PetriNetUnfolderBase]: For 4674/4959 co-relation queries the response was YES. [2023-11-21 22:19:27,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13619 conditions, 7422 events. 1122/7422 cut-off events. For 4674/4959 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 80761 event pairs, 172 based on Foata normal form. 48/6797 useless extension candidates. Maximal degree in co-relation 5711. Up to 572 conditions per place. [2023-11-21 22:19:27,855 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 89 selfloop transitions, 16 changer transitions 8/223 dead transitions. [2023-11-21 22:19:27,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 223 transitions, 972 flow [2023-11-21 22:19:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 22:19:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-21 22:19:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1682 transitions. [2023-11-21 22:19:27,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.841 [2023-11-21 22:19:27,859 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1682 transitions. [2023-11-21 22:19:27,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1682 transitions. [2023-11-21 22:19:27,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:27,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1682 transitions. [2023-11-21 22:19:27,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.125) internal successors, (1682), 16 states have internal predecessors, (1682), 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) [2023-11-21 22:19:27,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 125.0) internal successors, (2125), 17 states have internal predecessors, (2125), 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) [2023-11-21 22:19:27,870 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 125.0) internal successors, (2125), 17 states have internal predecessors, (2125), 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) [2023-11-21 22:19:27,871 INFO L175 Difference]: Start difference. First operand has 163 places, 147 transitions, 525 flow. Second operand 16 states and 1682 transitions. [2023-11-21 22:19:27,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 223 transitions, 972 flow [2023-11-21 22:19:27,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 223 transitions, 950 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-21 22:19:27,895 INFO L231 Difference]: Finished difference. Result has 171 places, 145 transitions, 520 flow [2023-11-21 22:19:27,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=520, PETRI_PLACES=171, PETRI_TRANSITIONS=145} [2023-11-21 22:19:27,896 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 43 predicate places. [2023-11-21 22:19:27,897 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 145 transitions, 520 flow [2023-11-21 22:19:27,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 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) [2023-11-21 22:19:27,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:27,898 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:27,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:28,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-21 22:19:28,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:28,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash -637024125, now seen corresponding path program 1 times [2023-11-21 22:19:28,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:28,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627163153] [2023-11-21 22:19:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:28,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-21 22:19:28,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:28,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627163153] [2023-11-21 22:19:28,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627163153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:28,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:28,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:19:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40296475] [2023-11-21 22:19:28,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:28,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:28,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:28,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:19:28,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2023-11-21 22:19:28,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 145 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 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) [2023-11-21 22:19:28,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:28,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2023-11-21 22:19:28,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:30,180 INFO L124 PetriNetUnfolderBase]: 2334/8603 cut-off events. [2023-11-21 22:19:30,180 INFO L125 PetriNetUnfolderBase]: For 3825/4053 co-relation queries the response was YES. [2023-11-21 22:19:30,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17385 conditions, 8603 events. 2334/8603 cut-off events. For 3825/4053 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 91149 event pairs, 950 based on Foata normal form. 0/7884 useless extension candidates. Maximal degree in co-relation 16744. Up to 1797 conditions per place. [2023-11-21 22:19:30,244 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 55 selfloop transitions, 6 changer transitions 0/176 dead transitions. [2023-11-21 22:19:30,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 176 transitions, 736 flow [2023-11-21 22:19:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:19:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 625 transitions. [2023-11-21 22:19:30,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-21 22:19:30,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 625 transitions. [2023-11-21 22:19:30,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 625 transitions. [2023-11-21 22:19:30,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:30,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 625 transitions. [2023-11-21 22:19:30,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 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) [2023-11-21 22:19:30,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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) [2023-11-21 22:19:30,249 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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) [2023-11-21 22:19:30,250 INFO L175 Difference]: Start difference. First operand has 171 places, 145 transitions, 520 flow. Second operand 6 states and 625 transitions. [2023-11-21 22:19:30,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 176 transitions, 736 flow [2023-11-21 22:19:30,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 176 transitions, 682 flow, removed 3 selfloop flow, removed 17 redundant places. [2023-11-21 22:19:30,295 INFO L231 Difference]: Finished difference. Result has 158 places, 144 transitions, 476 flow [2023-11-21 22:19:30,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=476, PETRI_PLACES=158, PETRI_TRANSITIONS=144} [2023-11-21 22:19:30,296 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 30 predicate places. [2023-11-21 22:19:30,296 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 144 transitions, 476 flow [2023-11-21 22:19:30,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 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) [2023-11-21 22:19:30,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:30,297 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:30,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-21 22:19:30,298 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:30,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1995216993, now seen corresponding path program 1 times [2023-11-21 22:19:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:30,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129216937] [2023-11-21 22:19:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:30,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-21 22:19:30,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129216937] [2023-11-21 22:19:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129216937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529095471] [2023-11-21 22:19:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:30,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:30,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 125 [2023-11-21 22:19:30,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 144 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-11-21 22:19:30,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:30,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 125 [2023-11-21 22:19:30,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:31,661 INFO L124 PetriNetUnfolderBase]: 1353/8906 cut-off events. [2023-11-21 22:19:31,661 INFO L125 PetriNetUnfolderBase]: For 5209/5230 co-relation queries the response was YES. [2023-11-21 22:19:31,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16947 conditions, 8906 events. 1353/8906 cut-off events. For 5209/5230 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106657 event pairs, 605 based on Foata normal form. 0/8360 useless extension candidates. Maximal degree in co-relation 16203. Up to 1591 conditions per place. [2023-11-21 22:19:31,710 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 30 selfloop transitions, 9 changer transitions 1/157 dead transitions. [2023-11-21 22:19:31,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 157 transitions, 610 flow [2023-11-21 22:19:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:19:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-11-21 22:19:31,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8986666666666666 [2023-11-21 22:19:31,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-11-21 22:19:31,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-11-21 22:19:31,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:31,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-11-21 22:19:31,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-11-21 22:19:31,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:31,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-11-21 22:19:31,714 INFO L175 Difference]: Start difference. First operand has 158 places, 144 transitions, 476 flow. Second operand 3 states and 337 transitions. [2023-11-21 22:19:31,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 157 transitions, 610 flow [2023-11-21 22:19:31,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 157 transitions, 598 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:19:31,786 INFO L231 Difference]: Finished difference. Result has 157 places, 148 transitions, 540 flow [2023-11-21 22:19:31,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=157, PETRI_TRANSITIONS=148} [2023-11-21 22:19:31,787 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 29 predicate places. [2023-11-21 22:19:31,787 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 148 transitions, 540 flow [2023-11-21 22:19:31,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-11-21 22:19:31,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:31,788 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:31,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-21 22:19:31,788 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:31,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1537122115, now seen corresponding path program 1 times [2023-11-21 22:19:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232947217] [2023-11-21 22:19:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-21 22:19:31,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:31,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232947217] [2023-11-21 22:19:31,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232947217] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:31,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717472445] [2023-11-21 22:19:31,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:31,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:31,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:31,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:32,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:19:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:32,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:19:32,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-21 22:19:32,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-21 22:19:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717472445] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:32,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-21 22:19:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709351447] [2023-11-21 22:19:32,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:32,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:19:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:19:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:32,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 125 [2023-11-21 22:19:32,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 148 transitions, 540 flow. Second operand has 12 states, 12 states have (on average 100.33333333333333) internal successors, (1204), 12 states have internal predecessors, (1204), 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) [2023-11-21 22:19:32,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:32,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 125 [2023-11-21 22:19:32,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:19:33,747 INFO L124 PetriNetUnfolderBase]: 1050/4095 cut-off events. [2023-11-21 22:19:33,747 INFO L125 PetriNetUnfolderBase]: For 1793/1821 co-relation queries the response was YES. [2023-11-21 22:19:33,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7677 conditions, 4095 events. 1050/4095 cut-off events. For 1793/1821 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 35225 event pairs, 84 based on Foata normal form. 128/4169 useless extension candidates. Maximal degree in co-relation 7031. Up to 518 conditions per place. [2023-11-21 22:19:33,784 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 88 selfloop transitions, 10 changer transitions 17/228 dead transitions. [2023-11-21 22:19:33,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 228 transitions, 1000 flow [2023-11-21 22:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:19:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:19:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1079 transitions. [2023-11-21 22:19:33,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8632 [2023-11-21 22:19:33,787 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1079 transitions. [2023-11-21 22:19:33,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1079 transitions. [2023-11-21 22:19:33,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:33,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1079 transitions. [2023-11-21 22:19:33,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 107.9) internal successors, (1079), 10 states have internal predecessors, (1079), 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) [2023-11-21 22:19:33,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2023-11-21 22:19:33,794 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2023-11-21 22:19:33,794 INFO L175 Difference]: Start difference. First operand has 157 places, 148 transitions, 540 flow. Second operand 10 states and 1079 transitions. [2023-11-21 22:19:33,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 228 transitions, 1000 flow [2023-11-21 22:19:33,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 228 transitions, 982 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:19:33,805 INFO L231 Difference]: Finished difference. Result has 167 places, 145 transitions, 540 flow [2023-11-21 22:19:33,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=540, PETRI_PLACES=167, PETRI_TRANSITIONS=145} [2023-11-21 22:19:33,806 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 39 predicate places. [2023-11-21 22:19:33,807 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 145 transitions, 540 flow [2023-11-21 22:19:33,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 100.33333333333333) internal successors, (1204), 12 states have internal predecessors, (1204), 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) [2023-11-21 22:19:33,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:33,808 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:33,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:34,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-21 22:19:34,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1930419734, now seen corresponding path program 1 times [2023-11-21 22:19:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916202968] [2023-11-21 22:19:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:34,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:34,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:34,228 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:19:34,228 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-21 22:19:34,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-21 22:19:34,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-21 22:19:34,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-11-21 22:19:34,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-21 22:19:34,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-21 22:19:34,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-21 22:19:34,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-21 22:19:34,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-21 22:19:34,230 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:34,238 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2023-11-21 22:19:34,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:19:34,417 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,419 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,420 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,427 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,428 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,428 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,429 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,429 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,430 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,430 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,430 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,431 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,432 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,432 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,432 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,438 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,438 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,438 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,439 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,439 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,439 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,449 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,450 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,450 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,450 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 22:19:34,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,466 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,466 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:19:34 BasicIcfg [2023-11-21 22:19:34,488 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:19:34,488 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:19:34,488 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:19:34,489 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:19:34,489 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:50" (3/4) ... [2023-11-21 22:19:34,491 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:19:34,493 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:19:34,493 INFO L158 Benchmark]: Toolchain (without parser) took 44851.18ms. Allocated memory was 157.3MB in the beginning and 10.3GB in the end (delta: 10.2GB). Free memory was 121.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2023-11-21 22:19:34,494 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:34,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.71ms. Allocated memory is still 157.3MB. Free memory was 121.6MB in the beginning and 102.1MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:19:34,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.46ms. Allocated memory is still 157.3MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:19:34,495 INFO L158 Benchmark]: Boogie Preprocessor took 37.41ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 98.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:19:34,495 INFO L158 Benchmark]: RCFGBuilder took 579.13ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 116.6MB in the end (delta: -18.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:19:34,497 INFO L158 Benchmark]: TraceAbstraction took 43486.72ms. Allocated memory was 157.3MB in the beginning and 10.3GB in the end (delta: 10.2GB). Free memory was 115.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2023-11-21 22:19:34,497 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 10.3GB. Free memory is still 6.7GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:34,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.71ms. Allocated memory is still 157.3MB. Free memory was 121.6MB in the beginning and 102.1MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.46ms. Allocated memory is still 157.3MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.41ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 98.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.13ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 116.6MB in the end (delta: -18.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 43486.72ms. Allocated memory was 157.3MB in the beginning and 10.3GB in the end (delta: 10.2GB). Free memory was 115.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 10.3GB. Free memory is still 6.7GB. 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~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 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~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 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~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 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: 685]: Data race detected [2023-11-21 22:19:34,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 22:19:34,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,675 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,791 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,791 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,792 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,792 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 22:19:34,792 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,793 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,793 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,793 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,793 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,793 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 22:19:34,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 22:19:34,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,817 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,817 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,817 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,817 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-21 22:19:34,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 22:19:34,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated Data race detected The following path leads to a data race: [L681] 0 int data = 0; VAL [data=0] [L682] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L690] 0 int threads_total = 4; VAL [data=0, data_mutex={1:0}, threads_total=4] [L691] 0 pthread_t tids[4]; VAL [data=0, data_mutex={1:0}, threads_total=4, tids={13:0}] [L692] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L692] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L692] 0 i++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L692] COND TRUE 0 i < threads_total VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L692] 0 i++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L692] COND TRUE 0 i < threads_total VAL [arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L692] 0 i++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={13:0}] [L692] COND TRUE 0 i < threads_total VAL [arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={13:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={13:0}] [L685] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 2 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 3 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L687] 3 return ((void *)0); VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L692] 0 i++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={13:0}] [L692] COND FALSE 0 !(i < threads_total) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={13:0}] [L695] 0 int i = 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L696] EXPR 0 tids[i] VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L687] 1 return ((void *)0); VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={13:0}] [L695] 0 i++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L687] 2 return ((void *)0); VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L696] EXPR 0 tids[i] VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L696] FCALL, JOIN 2 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={13:0}] [L695] 0 i++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L696] EXPR 0 tids[i] VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L696] FCALL, JOIN 3 pthread_join(tids[i], ((void *)0)) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={13:0}] [L695] 0 i++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={13:0}] [L695] COND FALSE 0 !(i < threads_total - 1) VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={13:0}] [L698] 0 return data; VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=4, tids={13:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\result={0:0}, arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [698] and C: data = __VERIFIER_nondet_int() [685] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 5 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 14 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 103 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 30 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 4 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 120 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 22 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=5, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 588 SizeOfPredicates, 4 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 31/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 137 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: 33.5s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1273 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1049 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2131 IncrementalHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 113 mSDtfsCounter, 2131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 513 GetRequests, 410 SyntacticMatches, 7 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=12, InterpolantAutomatonStates: 82, 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, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1076 NumberOfCodeBlocks, 1076 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1092 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 26 NumberOfNonLiveVariables, 596 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 529/662 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! [2023-11-21 22:19:34,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97a398b-9812-4196-97e4-dc402b6097c4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...