./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/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_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/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_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/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 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:23,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:23,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:02:23,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:23,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:23,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:23,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:23,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:23,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:23,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:23,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:23,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:23,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:23,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:23,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:23,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:02:23,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:23,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:02:23,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:23,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:23,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:23,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:23,304 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:02:23,304 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:23,305 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:02:23,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:23,306 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:23,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:23,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:23,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:23,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:23,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:23,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:23,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:23,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:23,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:02:23,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:23,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:23,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:23,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:23,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:23,314 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_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2023-11-21 21:02:23,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:23,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:23,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:23,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:23,664 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:23,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2023-11-21 21:02:26,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:27,298 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:27,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2023-11-21 21:02:27,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/data/88cf4799f/53556be26166415889c29a91b7101b57/FLAGe6b5882f7 [2023-11-21 21:02:27,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/data/88cf4799f/53556be26166415889c29a91b7101b57 [2023-11-21 21:02:27,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:27,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:27,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:27,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:27,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:27,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3daa5a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:27, skipping insertion in model container [2023-11-21 21:02:27,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:27" (1/1) ... [2023-11-21 21:02:27,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:27,687 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:02:28,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:28,143 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:28,164 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:02:28,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:28,349 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:02:28,357 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:28,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28 WrapperNode [2023-11-21 21:02:28,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:28,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:28,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:28,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:28,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,428 INFO L138 Inliner]: procedures = 282, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2023-11-21 21:02:28,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:28,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:28,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:28,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:28,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:28,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:28,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:28,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:28,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (1/1) ... [2023-11-21 21:02:28,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:28,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:28,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:28,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b931d6-3eb8-437c-8d14-731aa29b9d2c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:02:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 21:02:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:02:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 21:02:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 21:02:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:02:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:02:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 21:02:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:02:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:02:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 21:02:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 21:02:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:28,628 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 21:02:28,865 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:28,868 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:29,262 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:29,310 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:29,311 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 21:02:29,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:29 BoogieIcfgContainer [2023-11-21 21:02:29,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:29,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:29,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:29,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:29,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:27" (1/3) ... [2023-11-21 21:02:29,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18679113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:29, skipping insertion in model container [2023-11-21 21:02:29,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:28" (2/3) ... [2023-11-21 21:02:29,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18679113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:29, skipping insertion in model container [2023-11-21 21:02:29,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:29" (3/3) ... [2023-11-21 21:02:29,330 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2023-11-21 21:02:29,343 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:02:29,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:29,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-21 21:02:29,358 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:02:29,480 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-21 21:02:29,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 142 transitions, 291 flow [2023-11-21 21:02:29,694 INFO L124 PetriNetUnfolderBase]: 6/194 cut-off events. [2023-11-21 21:02:29,694 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 21:02:29,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 194 events. 6/194 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 401 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2023-11-21 21:02:29,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 142 transitions, 291 flow [2023-11-21 21:02:29,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 142 transitions, 291 flow [2023-11-21 21:02:29,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:29,754 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;@2cad17c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:29,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-21 21:02:29,774 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:02:29,777 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-21 21:02:29,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:02:29,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:29,778 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 21:02:29,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:29,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash -276997546, now seen corresponding path program 1 times [2023-11-21 21:02:29,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:29,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781869219] [2023-11-21 21:02:29,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:29,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,201 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 21:02:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781869219] [2023-11-21 21:02:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781869219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:30,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:30,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:30,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188076957] [2023-11-21 21:02:30,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:30,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:30,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:30,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:30,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 142 [2023-11-21 21:02:30,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states 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 21:02:30,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:30,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 142 [2023-11-21 21:02:30,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:30,410 INFO L124 PetriNetUnfolderBase]: 7/266 cut-off events. [2023-11-21 21:02:30,410 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 21:02:30,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 266 events. 7/266 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 743 event pairs, 6 based on Foata normal form. 9/242 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2023-11-21 21:02:30,415 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 10 selfloop transitions, 2 changer transitions 1/138 dead transitions. [2023-11-21 21:02:30,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 307 flow [2023-11-21 21:02:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-11-21 21:02:30,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9248826291079812 [2023-11-21 21:02:30,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-11-21 21:02:30,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-11-21 21:02:30,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:30,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-11-21 21:02:30,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 21:02:30,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:30,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:30,464 INFO L175 Difference]: Start difference. First operand has 141 places, 142 transitions, 291 flow. Second operand 3 states and 394 transitions. [2023-11-21 21:02:30,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 307 flow [2023-11-21 21:02:30,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 138 transitions, 307 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:30,482 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 285 flow [2023-11-21 21:02:30,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2023-11-21 21:02:30,492 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 1 predicate places. [2023-11-21 21:02:30,493 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 285 flow [2023-11-21 21:02:30,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states 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 21:02:30,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:30,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:30,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:02:30,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:30,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 67025839, now seen corresponding path program 1 times [2023-11-21 21:02:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:30,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565514511] [2023-11-21 21:02:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:31,389 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 21:02:31,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:31,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565514511] [2023-11-21 21:02:31,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565514511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:31,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:31,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:31,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585616599] [2023-11-21 21:02:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:31,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:31,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:31,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 142 [2023-11-21 21:02:31,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 21:02:31,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:31,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 142 [2023-11-21 21:02:31,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:32,290 INFO L124 PetriNetUnfolderBase]: 151/804 cut-off events. [2023-11-21 21:02:32,291 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 21:02:32,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 804 events. 151/804 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4600 event pairs, 36 based on Foata normal form. 0/710 useless extension candidates. Maximal degree in co-relation 1147. Up to 202 conditions per place. [2023-11-21 21:02:32,305 INFO L140 encePairwiseOnDemand]: 119/142 looper letters, 42 selfloop transitions, 29 changer transitions 0/178 dead transitions. [2023-11-21 21:02:32,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 178 transitions, 512 flow [2023-11-21 21:02:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 728 transitions. [2023-11-21 21:02:32,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544600938967136 [2023-11-21 21:02:32,317 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 728 transitions. [2023-11-21 21:02:32,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 728 transitions. [2023-11-21 21:02:32,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:32,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 728 transitions. [2023-11-21 21:02:32,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 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 21:02:32,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 21:02:32,329 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 21:02:32,330 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 285 flow. Second operand 6 states and 728 transitions. [2023-11-21 21:02:32,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 178 transitions, 512 flow [2023-11-21 21:02:32,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 178 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:32,343 INFO L231 Difference]: Finished difference. Result has 149 places, 166 transitions, 501 flow [2023-11-21 21:02:32,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=149, PETRI_TRANSITIONS=166} [2023-11-21 21:02:32,348 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2023-11-21 21:02:32,352 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 166 transitions, 501 flow [2023-11-21 21:02:32,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 21:02:32,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:32,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:32,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:02:32,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:32,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2068118252, now seen corresponding path program 1 times [2023-11-21 21:02:32,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:32,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356228888] [2023-11-21 21:02:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:32,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:32,464 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 21:02:32,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:32,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356228888] [2023-11-21 21:02:32,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356228888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:32,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:32,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:32,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38583763] [2023-11-21 21:02:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:32,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:32,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:32,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:32,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-21 21:02:32,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 166 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 21:02:32,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:32,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-21 21:02:32,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:32,660 INFO L124 PetriNetUnfolderBase]: 94/653 cut-off events. [2023-11-21 21:02:32,660 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-21 21:02:32,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 653 events. 94/653 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3551 event pairs, 5 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 907. Up to 111 conditions per place. [2023-11-21 21:02:32,671 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 11 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-21 21:02:32,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 168 transitions, 531 flow [2023-11-21 21:02:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-11-21 21:02:32,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9366197183098591 [2023-11-21 21:02:32,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-11-21 21:02:32,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-11-21 21:02:32,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:32,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-11-21 21:02:32,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 21:02:32,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:32,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:32,680 INFO L175 Difference]: Start difference. First operand has 149 places, 166 transitions, 501 flow. Second operand 3 states and 399 transitions. [2023-11-21 21:02:32,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 168 transitions, 531 flow [2023-11-21 21:02:32,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 168 transitions, 531 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:32,699 INFO L231 Difference]: Finished difference. Result has 150 places, 166 transitions, 511 flow [2023-11-21 21:02:32,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=150, PETRI_TRANSITIONS=166} [2023-11-21 21:02:32,702 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2023-11-21 21:02:32,702 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 166 transitions, 511 flow [2023-11-21 21:02:32,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 21:02:32,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:32,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:32,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:02:32,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:32,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2050436272, now seen corresponding path program 1 times [2023-11-21 21:02:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872519169] [2023-11-21 21:02:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:32,916 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 21:02:32,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:32,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872519169] [2023-11-21 21:02:32,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872519169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:32,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:32,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095970593] [2023-11-21 21:02:32,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:32,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:02:32,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:32,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:32,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:33,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 142 [2023-11-21 21:02:33,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 166 transitions, 511 flow. Second operand has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 21:02:33,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:33,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 142 [2023-11-21 21:02:33,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:33,247 INFO L124 PetriNetUnfolderBase]: 97/706 cut-off events. [2023-11-21 21:02:33,247 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-11-21 21:02:33,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 706 events. 97/706 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3856 event pairs, 9 based on Foata normal form. 1/670 useless extension candidates. Maximal degree in co-relation 1014. Up to 108 conditions per place. [2023-11-21 21:02:33,254 INFO L140 encePairwiseOnDemand]: 134/142 looper letters, 15 selfloop transitions, 2 changer transitions 5/173 dead transitions. [2023-11-21 21:02:33,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 173 transitions, 569 flow [2023-11-21 21:02:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:33,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-11-21 21:02:33,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9002347417840375 [2023-11-21 21:02:33,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-11-21 21:02:33,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-11-21 21:02:33,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:33,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-11-21 21:02:33,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states 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 21:02:33,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 21:02:33,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 21:02:33,269 INFO L175 Difference]: Start difference. First operand has 150 places, 166 transitions, 511 flow. Second operand 6 states and 767 transitions. [2023-11-21 21:02:33,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 173 transitions, 569 flow [2023-11-21 21:02:33,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 173 transitions, 569 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:33,279 INFO L231 Difference]: Finished difference. Result has 159 places, 166 transitions, 529 flow [2023-11-21 21:02:33,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=159, PETRI_TRANSITIONS=166} [2023-11-21 21:02:33,281 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 18 predicate places. [2023-11-21 21:02:33,281 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 166 transitions, 529 flow [2023-11-21 21:02:33,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 21:02:33,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:33,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:33,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:02:33,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:33,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:33,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1742492828, now seen corresponding path program 1 times [2023-11-21 21:02:33,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:33,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762097139] [2023-11-21 21:02:33,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:33,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:33,347 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 21:02:33,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:33,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762097139] [2023-11-21 21:02:33,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762097139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:33,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671197792] [2023-11-21 21:02:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:33,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:33,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:33,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:33,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-21 21:02:33,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 166 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states 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 21:02:33,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:33,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-21 21:02:33,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:33,497 INFO L124 PetriNetUnfolderBase]: 74/542 cut-off events. [2023-11-21 21:02:33,498 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-11-21 21:02:33,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 542 events. 74/542 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2762 event pairs, 2 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 900. Up to 93 conditions per place. [2023-11-21 21:02:33,505 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 7 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-11-21 21:02:33,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 164 transitions, 543 flow [2023-11-21 21:02:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-21 21:02:33,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272300469483568 [2023-11-21 21:02:33,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:33,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states 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 21:02:33,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:33,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:33,515 INFO L175 Difference]: Start difference. First operand has 159 places, 166 transitions, 529 flow. Second operand 3 states and 395 transitions. [2023-11-21 21:02:33,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 164 transitions, 543 flow [2023-11-21 21:02:33,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 164 transitions, 529 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-21 21:02:33,523 INFO L231 Difference]: Finished difference. Result has 151 places, 164 transitions, 515 flow [2023-11-21 21:02:33,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=151, PETRI_TRANSITIONS=164} [2023-11-21 21:02:33,527 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 10 predicate places. [2023-11-21 21:02:33,527 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 164 transitions, 515 flow [2023-11-21 21:02:33,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states 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 21:02:33,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:33,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:33,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:02:33,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:33,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash 9922377, now seen corresponding path program 1 times [2023-11-21 21:02:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:33,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270295450] [2023-11-21 21:02:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:33,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:33,624 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 21:02:33,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:33,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270295450] [2023-11-21 21:02:33,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270295450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518905873] [2023-11-21 21:02:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:33,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:33,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-21 21:02:33,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 164 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 21:02:33,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:33,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-21 21:02:33,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:33,768 INFO L124 PetriNetUnfolderBase]: 74/541 cut-off events. [2023-11-21 21:02:33,768 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-11-21 21:02:33,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 541 events. 74/541 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2755 event pairs, 2 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 873. Up to 93 conditions per place. [2023-11-21 21:02:33,774 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 8 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2023-11-21 21:02:33,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 533 flow [2023-11-21 21:02:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-21 21:02:33,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272300469483568 [2023-11-21 21:02:33,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:33,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-21 21:02:33,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states 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 21:02:33,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:33,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 21:02:33,785 INFO L175 Difference]: Start difference. First operand has 151 places, 164 transitions, 515 flow. Second operand 3 states and 395 transitions. [2023-11-21 21:02:33,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 533 flow [2023-11-21 21:02:33,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 163 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:33,793 INFO L231 Difference]: Finished difference. Result has 150 places, 163 transitions, 513 flow [2023-11-21 21:02:33,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=150, PETRI_TRANSITIONS=163} [2023-11-21 21:02:33,798 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2023-11-21 21:02:33,798 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 163 transitions, 513 flow [2023-11-21 21:02:33,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 21:02:33,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:33,799 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:33,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:02:33,800 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-21 21:02:33,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -282280213, now seen corresponding path program 1 times [2023-11-21 21:02:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:33,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192088940] [2023-11-21 21:02:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:33,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:33,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:33,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:33,936 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:02:33,937 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-21 21:02:33,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-21 21:02:33,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-21 21:02:33,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-21 21:02:33,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-21 21:02:33,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-21 21:02:33,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-21 21:02:33,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-21 21:02:33,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-21 21:02:33,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-21 21:02:33,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-21 21:02:33,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-21 21:02:33,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-21 21:02:33,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-21 21:02:33,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-21 21:02:33,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-21 21:02:33,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-21 21:02:33,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:02:33,952 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:33,956 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 21:02:33,957 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 21:02:34,034 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 21:02:34,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 182 transitions, 380 flow [2023-11-21 21:02:34,126 INFO L124 PetriNetUnfolderBase]: 11/341 cut-off events. [2023-11-21 21:02:34,126 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-21 21:02:34,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 341 events. 11/341 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 940 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 196. Up to 8 conditions per place. [2023-11-21 21:02:34,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 182 transitions, 380 flow [2023-11-21 21:02:34,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 182 transitions, 380 flow [2023-11-21 21:02:34,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:34,139 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;@2cad17c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:34,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-21 21:02:34,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:02:34,145 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-21 21:02:34,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:02:34,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:34,146 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 21:02:34,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:34,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1212397994, now seen corresponding path program 1 times [2023-11-21 21:02:34,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:34,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105347240] [2023-11-21 21:02:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:34,198 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 21:02:34,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105347240] [2023-11-21 21:02:34,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105347240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:34,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:34,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:34,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103059092] [2023-11-21 21:02:34,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:34,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:34,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-21 21:02:34,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 21:02:34,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:34,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-21 21:02:34,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:34,553 INFO L124 PetriNetUnfolderBase]: 81/1148 cut-off events. [2023-11-21 21:02:34,553 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-21 21:02:34,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 1148 events. 81/1148 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7197 event pairs, 78 based on Foata normal form. 40/1035 useless extension candidates. Maximal degree in co-relation 963. Up to 162 conditions per place. [2023-11-21 21:02:34,570 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 15 selfloop transitions, 2 changer transitions 1/178 dead transitions. [2023-11-21 21:02:34,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 178 transitions, 406 flow [2023-11-21 21:02:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:34,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2023-11-21 21:02:34,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2023-11-21 21:02:34,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2023-11-21 21:02:34,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2023-11-21 21:02:34,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:34,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2023-11-21 21:02:34,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 21:02:34,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:34,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:34,581 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 380 flow. Second operand 3 states and 504 transitions. [2023-11-21 21:02:34,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 178 transitions, 406 flow [2023-11-21 21:02:34,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 178 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:34,587 INFO L231 Difference]: Finished difference. Result has 183 places, 177 transitions, 374 flow [2023-11-21 21:02:34,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=183, PETRI_TRANSITIONS=177} [2023-11-21 21:02:34,590 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 1 predicate places. [2023-11-21 21:02:34,590 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 177 transitions, 374 flow [2023-11-21 21:02:34,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 21:02:34,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:34,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:34,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:02:34,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:34,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1202446383, now seen corresponding path program 1 times [2023-11-21 21:02:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:34,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742198521] [2023-11-21 21:02:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:35,096 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 21:02:35,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742198521] [2023-11-21 21:02:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742198521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:35,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:35,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:35,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108816829] [2023-11-21 21:02:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:35,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:35,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:35,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:35,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 182 [2023-11-21 21:02:35,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states 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 21:02:35,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:35,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 182 [2023-11-21 21:02:35,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:37,851 INFO L124 PetriNetUnfolderBase]: 3210/10616 cut-off events. [2023-11-21 21:02:37,851 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-11-21 21:02:37,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16089 conditions, 10616 events. 3210/10616 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 109200 event pairs, 680 based on Foata normal form. 0/9611 useless extension candidates. Maximal degree in co-relation 16046. Up to 3443 conditions per place. [2023-11-21 21:02:37,964 INFO L140 encePairwiseOnDemand]: 155/182 looper letters, 66 selfloop transitions, 48 changer transitions 0/253 dead transitions. [2023-11-21 21:02:37,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 253 transitions, 765 flow [2023-11-21 21:02:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2023-11-21 21:02:37,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8818681318681318 [2023-11-21 21:02:37,969 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 963 transitions. [2023-11-21 21:02:37,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 963 transitions. [2023-11-21 21:02:37,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:37,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 963 transitions. [2023-11-21 21:02:37,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states 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 21:02:37,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:37,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:37,978 INFO L175 Difference]: Start difference. First operand has 183 places, 177 transitions, 374 flow. Second operand 6 states and 963 transitions. [2023-11-21 21:02:37,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 253 transitions, 765 flow [2023-11-21 21:02:37,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 253 transitions, 761 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:37,986 INFO L231 Difference]: Finished difference. Result has 190 places, 225 transitions, 712 flow [2023-11-21 21:02:37,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=712, PETRI_PLACES=190, PETRI_TRANSITIONS=225} [2023-11-21 21:02:37,988 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 8 predicate places. [2023-11-21 21:02:37,989 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 225 transitions, 712 flow [2023-11-21 21:02:37,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states 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 21:02:37,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:37,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:37,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:02:37,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:37,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:37,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1492714028, now seen corresponding path program 1 times [2023-11-21 21:02:37,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:37,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697757606] [2023-11-21 21:02:37,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:37,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:38,060 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 21:02:38,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697757606] [2023-11-21 21:02:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697757606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:38,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:38,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986801262] [2023-11-21 21:02:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:38,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:38,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:38,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:38,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-21 21:02:38,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 225 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 21:02:38,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:38,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-21 21:02:38,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:40,076 INFO L124 PetriNetUnfolderBase]: 2215/8383 cut-off events. [2023-11-21 21:02:40,076 INFO L125 PetriNetUnfolderBase]: For 1416/1801 co-relation queries the response was YES. [2023-11-21 21:02:40,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15250 conditions, 8383 events. 2215/8383 cut-off events. For 1416/1801 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 84848 event pairs, 304 based on Foata normal form. 0/7721 useless extension candidates. Maximal degree in co-relation 7292. Up to 2300 conditions per place. [2023-11-21 21:02:40,165 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 3 changer transitions 0/230 dead transitions. [2023-11-21 21:02:40,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 230 transitions, 773 flow [2023-11-21 21:02:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2023-11-21 21:02:40,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9322344322344323 [2023-11-21 21:02:40,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2023-11-21 21:02:40,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2023-11-21 21:02:40,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:40,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2023-11-21 21:02:40,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states 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 21:02:40,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:40,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:40,174 INFO L175 Difference]: Start difference. First operand has 190 places, 225 transitions, 712 flow. Second operand 3 states and 509 transitions. [2023-11-21 21:02:40,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 230 transitions, 773 flow [2023-11-21 21:02:40,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 230 transitions, 773 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:40,208 INFO L231 Difference]: Finished difference. Result has 190 places, 225 transitions, 727 flow [2023-11-21 21:02:40,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=190, PETRI_TRANSITIONS=225} [2023-11-21 21:02:40,210 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 8 predicate places. [2023-11-21 21:02:40,210 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 225 transitions, 727 flow [2023-11-21 21:02:40,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 21:02:40,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:40,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:02:40,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:40,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:40,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1392774330, now seen corresponding path program 1 times [2023-11-21 21:02:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:40,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453844683] [2023-11-21 21:02:40,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:40,369 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 21:02:40,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:40,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453844683] [2023-11-21 21:02:40,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453844683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:40,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761655345] [2023-11-21 21:02:40,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:40,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:02:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:40,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:40,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 182 [2023-11-21 21:02:40,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 225 transitions, 727 flow. Second operand has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 21:02:40,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:40,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 182 [2023-11-21 21:02:40,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:42,439 INFO L124 PetriNetUnfolderBase]: 1905/8566 cut-off events. [2023-11-21 21:02:42,440 INFO L125 PetriNetUnfolderBase]: For 1183/1345 co-relation queries the response was YES. [2023-11-21 21:02:42,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14730 conditions, 8566 events. 1905/8566 cut-off events. For 1183/1345 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 87477 event pairs, 412 based on Foata normal form. 2/7914 useless extension candidates. Maximal degree in co-relation 10566. Up to 2055 conditions per place. [2023-11-21 21:02:42,543 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 20 selfloop transitions, 2 changer transitions 5/233 dead transitions. [2023-11-21 21:02:42,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 233 transitions, 797 flow [2023-11-21 21:02:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2023-11-21 21:02:42,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-21 21:02:42,549 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2023-11-21 21:02:42,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2023-11-21 21:02:42,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:42,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2023-11-21 21:02:42,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 21:02:42,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:42,561 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:42,561 INFO L175 Difference]: Start difference. First operand has 190 places, 225 transitions, 727 flow. Second operand 6 states and 988 transitions. [2023-11-21 21:02:42,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 233 transitions, 797 flow [2023-11-21 21:02:42,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 233 transitions, 797 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:42,586 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 749 flow [2023-11-21 21:02:42,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=749, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2023-11-21 21:02:42,589 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 17 predicate places. [2023-11-21 21:02:42,589 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 749 flow [2023-11-21 21:02:42,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 21:02:42,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:42,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:42,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 21:02:42,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:42,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:42,592 INFO L85 PathProgramCache]: Analyzing trace with hash 830559882, now seen corresponding path program 1 times [2023-11-21 21:02:42,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:42,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737366893] [2023-11-21 21:02:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:42,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:42,661 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 21:02:42,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:42,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737366893] [2023-11-21 21:02:42,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737366893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:42,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:42,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547504373] [2023-11-21 21:02:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:42,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:42,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:42,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:42,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:42,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 182 [2023-11-21 21:02:42,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 21:02:42,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:42,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 182 [2023-11-21 21:02:42,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:44,575 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([397] L1064-5-->L1064-6: Formula: (let ((.cse0 (select |v_#race_30| |v_ULTIMATE.start_main_~#tids~0#1.base_17|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 1)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 3)) 0) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_17|)))) InVars {#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} OutVars{#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} AuxVars[] AssignedVars[][175], [Black: 189#true, 161#L1052-10true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 159#L1064-6true, 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 210#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), threadThread2of2ForFork0InUse, Black: 209#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 212#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 206#true]) [2023-11-21 21:02:44,575 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is not cut-off event [2023-11-21 21:02:44,575 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:44,575 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:44,575 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:44,614 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([492] L1066-5-->L1066-6: Formula: (let ((.cse0 (select |v_#race_50| |v_ULTIMATE.start_main_~#tids~0#1.base_24|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 3)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 1)) 0) (= (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_24|) 0))) InVars {#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} OutVars{#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} AuxVars[] AssignedVars[][188], [161#L1052-10true, Black: 189#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 136#L1066-6true, 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 210#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), threadThread2of2ForFork0InUse, Black: 209#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 212#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 206#true]) [2023-11-21 21:02:44,614 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is not cut-off event [2023-11-21 21:02:44,614 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:44,614 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:44,614 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:44,861 INFO L124 PetriNetUnfolderBase]: 2177/9531 cut-off events. [2023-11-21 21:02:44,862 INFO L125 PetriNetUnfolderBase]: For 1891/2294 co-relation queries the response was YES. [2023-11-21 21:02:44,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18054 conditions, 9531 events. 2177/9531 cut-off events. For 1891/2294 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 105702 event pairs, 224 based on Foata normal form. 1/8883 useless extension candidates. Maximal degree in co-relation 17973. Up to 2376 conditions per place. [2023-11-21 21:02:44,954 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 29 selfloop transitions, 10 changer transitions 0/243 dead transitions. [2023-11-21 21:02:44,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 243 transitions, 872 flow [2023-11-21 21:02:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:44,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2023-11-21 21:02:44,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9413919413919414 [2023-11-21 21:02:44,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2023-11-21 21:02:44,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2023-11-21 21:02:44,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:44,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2023-11-21 21:02:44,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 21:02:44,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:44,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:44,966 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 749 flow. Second operand 3 states and 514 transitions. [2023-11-21 21:02:44,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 243 transitions, 872 flow [2023-11-21 21:02:45,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 243 transitions, 860 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-21 21:02:45,033 INFO L231 Difference]: Finished difference. Result has 196 places, 236 transitions, 825 flow [2023-11-21 21:02:45,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=196, PETRI_TRANSITIONS=236} [2023-11-21 21:02:45,035 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2023-11-21 21:02:45,035 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 236 transitions, 825 flow [2023-11-21 21:02:45,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 21:02:45,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:45,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:45,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:02:45,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:45,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1542637423, now seen corresponding path program 1 times [2023-11-21 21:02:45,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417140800] [2023-11-21 21:02:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:45,090 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 21:02:45,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:45,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417140800] [2023-11-21 21:02:45,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417140800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:45,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:45,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522903647] [2023-11-21 21:02:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:45,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:45,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:45,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-21 21:02:45,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 236 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 21:02:45,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:45,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-21 21:02:45,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:47,278 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([397] L1064-5-->L1064-6: Formula: (let ((.cse0 (select |v_#race_30| |v_ULTIMATE.start_main_~#tids~0#1.base_17|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 1)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 3)) 0) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_17|)))) InVars {#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} OutVars{#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} AuxVars[] AssignedVars[][176], [161#L1052-10true, Black: 189#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 224#true, Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 159#L1064-6true, 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of2ForFork0InUse, Black: 220#(= |#race~next_j~0| 0)]) [2023-11-21 21:02:47,278 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is not cut-off event [2023-11-21 21:02:47,278 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:47,279 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:47,279 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-21 21:02:47,320 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([492] L1066-5-->L1066-6: Formula: (let ((.cse0 (select |v_#race_50| |v_ULTIMATE.start_main_~#tids~0#1.base_24|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 3)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 1)) 0) (= (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_24|) 0))) InVars {#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} OutVars{#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} AuxVars[] AssignedVars[][189], [161#L1052-10true, Black: 189#true, 224#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 136#L1066-6true, 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of2ForFork0InUse, Black: 220#(= |#race~next_j~0| 0)]) [2023-11-21 21:02:47,320 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is not cut-off event [2023-11-21 21:02:47,320 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:47,320 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:47,320 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-21 21:02:47,581 INFO L124 PetriNetUnfolderBase]: 2583/11086 cut-off events. [2023-11-21 21:02:47,582 INFO L125 PetriNetUnfolderBase]: For 2453/2771 co-relation queries the response was YES. [2023-11-21 21:02:47,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21200 conditions, 11086 events. 2583/11086 cut-off events. For 2453/2771 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 127957 event pairs, 243 based on Foata normal form. 11/10335 useless extension candidates. Maximal degree in co-relation 13763. Up to 2829 conditions per place. [2023-11-21 21:02:47,697 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 26 selfloop transitions, 9 changer transitions 0/247 dead transitions. [2023-11-21 21:02:47,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 247 transitions, 941 flow [2023-11-21 21:02:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-21 21:02:47,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2023-11-21 21:02:47,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-21 21:02:47,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-21 21:02:47,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:47,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-21 21:02:47,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 21:02:47,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:47,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:02:47,708 INFO L175 Difference]: Start difference. First operand has 196 places, 236 transitions, 825 flow. Second operand 3 states and 511 transitions. [2023-11-21 21:02:47,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 247 transitions, 941 flow [2023-11-21 21:02:47,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 247 transitions, 915 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:47,819 INFO L231 Difference]: Finished difference. Result has 198 places, 243 transitions, 881 flow [2023-11-21 21:02:47,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=881, PETRI_PLACES=198, PETRI_TRANSITIONS=243} [2023-11-21 21:02:47,821 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 16 predicate places. [2023-11-21 21:02:47,821 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 243 transitions, 881 flow [2023-11-21 21:02:47,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 21:02:47,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:47,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:47,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:02:47,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:47,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1861185227, now seen corresponding path program 1 times [2023-11-21 21:02:47,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:47,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848742225] [2023-11-21 21:02:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:48,504 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 21:02:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848742225] [2023-11-21 21:02:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848742225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:48,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:48,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86791438] [2023-11-21 21:02:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:48,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:48,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 182 [2023-11-21 21:02:48,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 243 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 21:02:48,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:48,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 182 [2023-11-21 21:02:48,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:52,580 INFO L124 PetriNetUnfolderBase]: 5438/19232 cut-off events. [2023-11-21 21:02:52,580 INFO L125 PetriNetUnfolderBase]: For 8234/8581 co-relation queries the response was YES. [2023-11-21 21:02:52,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41215 conditions, 19232 events. 5438/19232 cut-off events. For 8234/8581 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 229508 event pairs, 1273 based on Foata normal form. 17/18079 useless extension candidates. Maximal degree in co-relation 24626. Up to 6404 conditions per place. [2023-11-21 21:02:52,748 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 78 selfloop transitions, 70 changer transitions 0/330 dead transitions. [2023-11-21 21:02:52,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 330 transitions, 1549 flow [2023-11-21 21:02:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 985 transitions. [2023-11-21 21:02:52,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.902014652014652 [2023-11-21 21:02:52,754 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 985 transitions. [2023-11-21 21:02:52,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 985 transitions. [2023-11-21 21:02:52,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:52,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 985 transitions. [2023-11-21 21:02:52,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.16666666666666) internal successors, (985), 6 states have internal predecessors, (985), 0 states have call successors, (0), 0 states 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 21:02:52,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:52,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:02:52,764 INFO L175 Difference]: Start difference. First operand has 198 places, 243 transitions, 881 flow. Second operand 6 states and 985 transitions. [2023-11-21 21:02:52,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 330 transitions, 1549 flow [2023-11-21 21:02:52,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 330 transitions, 1531 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:52,850 INFO L231 Difference]: Finished difference. Result has 206 places, 312 transitions, 1517 flow [2023-11-21 21:02:52,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1517, PETRI_PLACES=206, PETRI_TRANSITIONS=312} [2023-11-21 21:02:52,852 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 24 predicate places. [2023-11-21 21:02:52,853 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 312 transitions, 1517 flow [2023-11-21 21:02:52,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 21:02:52,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:52,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:52,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 21:02:52,855 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:02:52,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -142684872, now seen corresponding path program 1 times [2023-11-21 21:02:52,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:52,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825405158] [2023-11-21 21:02:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:52,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:53,446 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 21:02:53,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:53,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825405158] [2023-11-21 21:02:53,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825405158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:53,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:53,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:53,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575084626] [2023-11-21 21:02:53,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:53,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:53,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:53,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:53,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 182 [2023-11-21 21:02:53,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 312 transitions, 1517 flow. Second operand has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states 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 21:02:53,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:53,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 182 [2023-11-21 21:02:53,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:02,338 INFO L124 PetriNetUnfolderBase]: 13919/42116 cut-off events. [2023-11-21 21:03:02,339 INFO L125 PetriNetUnfolderBase]: For 26981/33998 co-relation queries the response was YES. [2023-11-21 21:03:02,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105250 conditions, 42116 events. 13919/42116 cut-off events. For 26981/33998 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 517279 event pairs, 4384 based on Foata normal form. 143/39459 useless extension candidates. Maximal degree in co-relation 90308. Up to 18360 conditions per place. [2023-11-21 21:03:02,924 INFO L140 encePairwiseOnDemand]: 155/182 looper letters, 184 selfloop transitions, 188 changer transitions 0/533 dead transitions. [2023-11-21 21:03:02,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 533 transitions, 3567 flow [2023-11-21 21:03:02,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:03:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:03:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2023-11-21 21:03:02,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-21 21:03:02,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2023-11-21 21:03:02,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2023-11-21 21:03:02,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:02,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2023-11-21 21:03:02,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 21:03:02,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:03:02,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 21:03:02,942 INFO L175 Difference]: Start difference. First operand has 206 places, 312 transitions, 1517 flow. Second operand 6 states and 988 transitions. [2023-11-21 21:03:02,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 533 transitions, 3567 flow [2023-11-21 21:03:03,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 533 transitions, 3567 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:03:03,337 INFO L231 Difference]: Finished difference. Result has 215 places, 490 transitions, 3403 flow [2023-11-21 21:03:03,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1517, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3403, PETRI_PLACES=215, PETRI_TRANSITIONS=490} [2023-11-21 21:03:03,339 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 33 predicate places. [2023-11-21 21:03:03,340 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 490 transitions, 3403 flow [2023-11-21 21:03:03,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states 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 21:03:03,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:03,341 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 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 21:03:03,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 21:03:03,342 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:03:03,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1558770421, now seen corresponding path program 1 times [2023-11-21 21:03:03,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:03,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343311967] [2023-11-21 21:03:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 21:03:03,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:03,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343311967] [2023-11-21 21:03:03,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343311967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:03,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:03,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:03,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544717213] [2023-11-21 21:03:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:03,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:03,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:03,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:03,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:03,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-21 21:03:03,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 490 transitions, 3403 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 21:03:03,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:03,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-21 21:03:03,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:10,344 INFO L124 PetriNetUnfolderBase]: 9942/31963 cut-off events. [2023-11-21 21:03:10,344 INFO L125 PetriNetUnfolderBase]: For 41229/67044 co-relation queries the response was YES. [2023-11-21 21:03:10,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92850 conditions, 31963 events. 9942/31963 cut-off events. For 41229/67044 co-relation queries the response was YES. Maximal size of possible extension queue 1080. Compared 395233 event pairs, 969 based on Foata normal form. 93/30311 useless extension candidates. Maximal degree in co-relation 77783. Up to 9162 conditions per place. [2023-11-21 21:03:10,768 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 28 selfloop transitions, 11 changer transitions 0/500 dead transitions. [2023-11-21 21:03:10,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 500 transitions, 3518 flow [2023-11-21 21:03:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:10,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2023-11-21 21:03:10,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9340659340659341 [2023-11-21 21:03:10,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2023-11-21 21:03:10,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2023-11-21 21:03:10,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:10,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2023-11-21 21:03:10,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states 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 21:03:10,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:03:10,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 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 21:03:10,784 INFO L175 Difference]: Start difference. First operand has 215 places, 490 transitions, 3403 flow. Second operand 3 states and 510 transitions. [2023-11-21 21:03:10,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 500 transitions, 3518 flow [2023-11-21 21:03:12,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 500 transitions, 3446 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-11-21 21:03:12,406 INFO L231 Difference]: Finished difference. Result has 219 places, 497 transitions, 3419 flow [2023-11-21 21:03:12,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3331, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3419, PETRI_PLACES=219, PETRI_TRANSITIONS=497} [2023-11-21 21:03:12,408 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 37 predicate places. [2023-11-21 21:03:12,408 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 497 transitions, 3419 flow [2023-11-21 21:03:12,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 21:03:12,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:12,409 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:12,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 21:03:12,410 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-21 21:03:12,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1306568005, now seen corresponding path program 1 times [2023-11-21 21:03:12,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389608055] [2023-11-21 21:03:12,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:12,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:12,521 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:03:12,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-11-21 21:03:12,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-11-21 21:03:12,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-11-21 21:03:12,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-11-21 21:03:12,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-11-21 21:03:12,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-11-21 21:03:12,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-11-21 21:03:12,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-11-21 21:03:12,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-11-21 21:03:12,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-11-21 21:03:12,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-11-21 21:03:12,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-11-21 21:03:12,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-11-21 21:03:12,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-11-21 21:03:12,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-11-21 21:03:12,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-11-21 21:03:12,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-11-21 21:03:12,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-11-21 21:03:12,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-11-21 21:03:12,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-11-21 21:03:12,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-11-21 21:03:12,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-11-21 21:03:12,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 21:03:12,529 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:12,530 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 21:03:12,530 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 21:03:12,587 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 21:03:12,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 222 transitions, 471 flow [2023-11-21 21:03:12,763 INFO L124 PetriNetUnfolderBase]: 21/577 cut-off events. [2023-11-21 21:03:12,763 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-21 21:03:12,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 577 events. 21/577 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1920 event pairs, 1 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 349. Up to 16 conditions per place. [2023-11-21 21:03:12,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 222 transitions, 471 flow [2023-11-21 21:03:12,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 222 transitions, 471 flow [2023-11-21 21:03:12,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:12,776 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;@2cad17c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:12,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-21 21:03:12,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:03:12,780 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-21 21:03:12,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:03:12,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:12,781 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 21:03:12,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 21:03:12,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,782 INFO L85 PathProgramCache]: Analyzing trace with hash 667255382, now seen corresponding path program 1 times [2023-11-21 21:03:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948598027] [2023-11-21 21:03:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:12,816 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 21:03:12,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:12,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948598027] [2023-11-21 21:03:12,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948598027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:12,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:12,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:12,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290653310] [2023-11-21 21:03:12,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:12,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:12,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:12,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:12,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 222 [2023-11-21 21:03:12,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 222 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 21:03:12,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:12,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 222 [2023-11-21 21:03:12,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand