./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.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_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/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_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/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_b2e35a65-9bc6-4f00-bf81-6676f0339621/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 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:07,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:07,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:13:07,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:07,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:07,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:07,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:07,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:07,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:07,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:07,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:07,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:07,379 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:07,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:07,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:07,381 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:07,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:07,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:07,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:07,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:07,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:07,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:07,385 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:13:07,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:07,385 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:07,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:07,386 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:07,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:07,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:07,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:07,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:07,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:07,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:07,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:07,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:07,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:07,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:07,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:07,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:07,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:07,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:07,392 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_b2e35a65-9bc6-4f00-bf81-6676f0339621/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b [2023-11-21 22:13:07,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:07,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:07,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:07,692 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:07,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:07,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-21 22:13:10,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:11,262 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:11,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-21 22:13:11,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/data/d261ca949/e5e297696bc943d2802cc062087188f1/FLAGeeb9b28f1 [2023-11-21 22:13:11,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/data/d261ca949/e5e297696bc943d2802cc062087188f1 [2023-11-21 22:13:11,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:11,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:11,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:11,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:11,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:11,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:11" (1/1) ... [2023-11-21 22:13:11,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cb644e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:11, skipping insertion in model container [2023-11-21 22:13:11,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:11" (1/1) ... [2023-11-21 22:13:11,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:12,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:12,064 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:12,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:12,199 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:13:12,199 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:13:12,207 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:12,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12 WrapperNode [2023-11-21 22:13:12,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:12,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:12,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:12,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:12,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,297 INFO L138 Inliner]: procedures = 275, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 164 [2023-11-21 22:13:12,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:12,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:12,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:12,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:12,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:13:12,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:13:12,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:13:12,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:13:12,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (1/1) ... [2023-11-21 22:13:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:13:12,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:13:12,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2e35a65-9bc6-4f00-bf81-6676f0339621/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:13:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:13:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-21 22:13:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-21 22:13:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:13:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:13:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:13:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:13:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:13:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:13:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:13:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:13:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:13:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:13:12,441 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:13:12,691 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:13:12,695 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:13:13,217 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:13:13,323 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:13:13,323 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:13:13,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:13 BoogieIcfgContainer [2023-11-21 22:13:13,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:13:13,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:13:13,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:13:13,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:13:13,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:13:11" (1/3) ... [2023-11-21 22:13:13,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567393c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:13, skipping insertion in model container [2023-11-21 22:13:13,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:12" (2/3) ... [2023-11-21 22:13:13,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567393c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:13, skipping insertion in model container [2023-11-21 22:13:13,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:13" (3/3) ... [2023-11-21 22:13:13,339 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2023-11-21 22:13:13,349 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:13:13,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:13:13,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-21 22:13:13,364 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:13:13,473 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:13:13,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 175 transitions, 354 flow [2023-11-21 22:13:13,592 INFO L124 PetriNetUnfolderBase]: 9/188 cut-off events. [2023-11-21 22:13:13,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:13,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 188 events. 9/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 179 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2023-11-21 22:13:13,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 175 transitions, 354 flow [2023-11-21 22:13:13,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 175 transitions, 354 flow [2023-11-21 22:13:13,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:13,631 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;@6f568bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:13,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-21 22:13:13,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:13,641 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:13:13,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:13,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:13,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:13,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:13,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:13,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1893095273, now seen corresponding path program 1 times [2023-11-21 22:13:13,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551877310] [2023-11-21 22:13:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:13,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:13,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:13,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551877310] [2023-11-21 22:13:13,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551877310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:13,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:13,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:13,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617787981] [2023-11-21 22:13:13,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:13,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:13,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:13,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:13,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 175 [2023-11-21 22:13:13,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 175 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:13,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:13,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 175 [2023-11-21 22:13:13,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:14,058 INFO L124 PetriNetUnfolderBase]: 3/158 cut-off events. [2023-11-21 22:13:14,059 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:14,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 3/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 8/144 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2023-11-21 22:13:14,062 INFO L140 encePairwiseOnDemand]: 162/175 looper letters, 6 selfloop transitions, 2 changer transitions 1/154 dead transitions. [2023-11-21 22:13:14,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 154 transitions, 328 flow [2023-11-21 22:13:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2023-11-21 22:13:14,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9161904761904762 [2023-11-21 22:13:14,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2023-11-21 22:13:14,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2023-11-21 22:13:14,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:14,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2023-11-21 22:13:14,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,110 INFO L175 Difference]: Start difference. First operand has 170 places, 175 transitions, 354 flow. Second operand 3 states and 481 transitions. [2023-11-21 22:13:14,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 154 transitions, 328 flow [2023-11-21 22:13:14,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 154 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:13:14,120 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 314 flow [2023-11-21 22:13:14,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2023-11-21 22:13:14,126 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -14 predicate places. [2023-11-21 22:13:14,127 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 314 flow [2023-11-21 22:13:14,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:14,128 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] [2023-11-21 22:13:14,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:13:14,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:14,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -457357874, now seen corresponding path program 1 times [2023-11-21 22:13:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:14,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025988461] [2023-11-21 22:13:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:14,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:14,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:14,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025988461] [2023-11-21 22:13:14,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025988461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:14,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:14,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:14,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053824061] [2023-11-21 22:13:14,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:14,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:14,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:14,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:14,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:14,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-21 22:13:14,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:14,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-21 22:13:14,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:14,318 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-21 22:13:14,318 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:14,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 156 events. 3/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 149. Up to 11 conditions per place. [2023-11-21 22:13:14,321 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-11-21 22:13:14,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 152 transitions, 336 flow [2023-11-21 22:13:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:14,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-21 22:13:14,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-21 22:13:14,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:14,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,336 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 314 flow. Second operand 3 states and 463 transitions. [2023-11-21 22:13:14,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 152 transitions, 336 flow [2023-11-21 22:13:14,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 152 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:14,344 INFO L231 Difference]: Finished difference. Result has 154 places, 152 transitions, 312 flow [2023-11-21 22:13:14,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=154, PETRI_TRANSITIONS=152} [2023-11-21 22:13:14,345 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-21 22:13:14,345 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 152 transitions, 312 flow [2023-11-21 22:13:14,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:14,350 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] [2023-11-21 22:13:14,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:13:14,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:14,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:14,354 INFO L85 PathProgramCache]: Analyzing trace with hash -608003830, now seen corresponding path program 1 times [2023-11-21 22:13:14,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:14,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247733441] [2023-11-21 22:13:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:14,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:14,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247733441] [2023-11-21 22:13:14,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247733441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:14,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:14,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9515093] [2023-11-21 22:13:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:14,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:14,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-21 22:13:14,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 152 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:14,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-21 22:13:14,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:14,561 INFO L124 PetriNetUnfolderBase]: 3/155 cut-off events. [2023-11-21 22:13:14,562 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:14,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 155 events. 3/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 143. Up to 11 conditions per place. [2023-11-21 22:13:14,563 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2023-11-21 22:13:14,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 334 flow [2023-11-21 22:13:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-21 22:13:14,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-21 22:13:14,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:14,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-21 22:13:14,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,571 INFO L175 Difference]: Start difference. First operand has 154 places, 152 transitions, 312 flow. Second operand 3 states and 463 transitions. [2023-11-21 22:13:14,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 334 flow [2023-11-21 22:13:14,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 151 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:14,576 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 310 flow [2023-11-21 22:13:14,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2023-11-21 22:13:14,578 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -17 predicate places. [2023-11-21 22:13:14,578 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 310 flow [2023-11-21 22:13:14,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:14,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:14,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:13:14,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:14,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:14,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1745274053, now seen corresponding path program 1 times [2023-11-21 22:13:14,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:14,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2501865] [2023-11-21 22:13:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:14,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:14,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2501865] [2023-11-21 22:13:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2501865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:14,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:14,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:14,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466395906] [2023-11-21 22:13:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:14,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:14,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:14,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:14,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 175 [2023-11-21 22:13:14,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:14,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 175 [2023-11-21 22:13:14,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:14,731 INFO L124 PetriNetUnfolderBase]: 3/151 cut-off events. [2023-11-21 22:13:14,732 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:13:14,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 151 events. 3/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 131. Up to 11 conditions per place. [2023-11-21 22:13:14,733 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 11 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-11-21 22:13:14,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 326 flow [2023-11-21 22:13:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:14,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:14,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-11-21 22:13:14,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2023-11-21 22:13:14,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-11-21 22:13:14,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-11-21 22:13:14,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:14,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-11-21 22:13:14,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,742 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 310 flow. Second operand 3 states and 460 transitions. [2023-11-21 22:13:14,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 326 flow [2023-11-21 22:13:14,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:14,747 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 300 flow [2023-11-21 22:13:14,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2023-11-21 22:13:14,749 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-21 22:13:14,749 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 300 flow [2023-11-21 22:13:14,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:14,751 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 22:13:14,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:13:14,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:14,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1467890943, now seen corresponding path program 1 times [2023-11-21 22:13:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317943085] [2023-11-21 22:13:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:14,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317943085] [2023-11-21 22:13:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317943085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:14,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:14,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:14,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492383494] [2023-11-21 22:13:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:14,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:14,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:14,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 175 [2023-11-21 22:13:14,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:14,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 175 [2023-11-21 22:13:14,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:14,942 INFO L124 PetriNetUnfolderBase]: 3/150 cut-off events. [2023-11-21 22:13:14,942 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:14,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 150 events. 3/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2023-11-21 22:13:14,944 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 9 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-11-21 22:13:14,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 320 flow [2023-11-21 22:13:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-11-21 22:13:14,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2023-11-21 22:13:14,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-11-21 22:13:14,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-11-21 22:13:14,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:14,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-11-21 22:13:14,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,955 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 300 flow. Second operand 3 states and 465 transitions. [2023-11-21 22:13:14,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 320 flow [2023-11-21 22:13:14,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:13:14,960 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 301 flow [2023-11-21 22:13:14,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2023-11-21 22:13:14,964 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-21 22:13:14,964 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 301 flow [2023-11-21 22:13:14,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:14,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:14,966 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:14,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:13:14,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:14,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1868260891, now seen corresponding path program 1 times [2023-11-21 22:13:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:14,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24413733] [2023-11-21 22:13:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:13:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24413733] [2023-11-21 22:13:15,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24413733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:15,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:15,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:13:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140761513] [2023-11-21 22:13:15,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:13:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:13:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:13:15,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 175 [2023-11-21 22:13:15,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:15,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 175 [2023-11-21 22:13:15,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:15,255 INFO L124 PetriNetUnfolderBase]: 2/153 cut-off events. [2023-11-21 22:13:15,255 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:15,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 153 events. 2/153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 140. Up to 15 conditions per place. [2023-11-21 22:13:15,257 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 14 selfloop transitions, 0 changer transitions 4/149 dead transitions. [2023-11-21 22:13:15,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 149 transitions, 343 flow [2023-11-21 22:13:15,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:13:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:13:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 754 transitions. [2023-11-21 22:13:15,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8617142857142858 [2023-11-21 22:13:15,261 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 754 transitions. [2023-11-21 22:13:15,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 754 transitions. [2023-11-21 22:13:15,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:15,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 754 transitions. [2023-11-21 22:13:15,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,269 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,270 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 301 flow. Second operand 5 states and 754 transitions. [2023-11-21 22:13:15,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 149 transitions, 343 flow [2023-11-21 22:13:15,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 149 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:15,275 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 301 flow [2023-11-21 22:13:15,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2023-11-21 22:13:15,276 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-21 22:13:15,276 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 301 flow [2023-11-21 22:13:15,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:15,277 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:15,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:13:15,278 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:13:15,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -678968952, now seen corresponding path program 1 times [2023-11-21 22:13:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045761341] [2023-11-21 22:13:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:15,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:13:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:15,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:13:15,361 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:13:15,363 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2023-11-21 22:13:15,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-11-21 22:13:15,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-11-21 22:13:15,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-11-21 22:13:15,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-11-21 22:13:15,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-11-21 22:13:15,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-11-21 22:13:15,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-11-21 22:13:15,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-11-21 22:13:15,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-11-21 22:13:15,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-11-21 22:13:15,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-11-21 22:13:15,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-11-21 22:13:15,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-11-21 22:13:15,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-11-21 22:13:15,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-11-21 22:13:15,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-11-21 22:13:15,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-11-21 22:13:15,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-11-21 22:13:15,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-11-21 22:13:15,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-11-21 22:13:15,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-11-21 22:13:15,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-11-21 22:13:15,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-11-21 22:13:15,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2023-11-21 22:13:15,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-11-21 22:13:15,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-11-21 22:13:15,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-11-21 22:13:15,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-11-21 22:13:15,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-11-21 22:13:15,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-11-21 22:13:15,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-11-21 22:13:15,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-11-21 22:13:15,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-11-21 22:13:15,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-11-21 22:13:15,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-11-21 22:13:15,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-11-21 22:13:15,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-11-21 22:13:15,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:13:15,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:15,378 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:13:15,378 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:13:15,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:13:15,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 260 places, 268 transitions, 546 flow [2023-11-21 22:13:15,498 INFO L124 PetriNetUnfolderBase]: 15/296 cut-off events. [2023-11-21 22:13:15,499 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:13:15,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 296 events. 15/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 611 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 199. Up to 6 conditions per place. [2023-11-21 22:13:15,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 260 places, 268 transitions, 546 flow [2023-11-21 22:13:15,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 260 places, 268 transitions, 546 flow [2023-11-21 22:13:15,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:15,511 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;@6f568bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:15,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-21 22:13:15,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:15,514 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:13:15,514 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:15,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:15,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:15,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:15,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash 817912565, now seen corresponding path program 1 times [2023-11-21 22:13:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242523609] [2023-11-21 22:13:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:15,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242523609] [2023-11-21 22:13:15,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242523609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:15,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:15,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:15,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062090840] [2023-11-21 22:13:15,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:15,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:15,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:15,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:15,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:15,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 268 [2023-11-21 22:13:15,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 268 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:15,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 268 [2023-11-21 22:13:15,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:15,714 INFO L124 PetriNetUnfolderBase]: 17/481 cut-off events. [2023-11-21 22:13:15,714 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-21 22:13:15,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 481 events. 17/481 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1851 event pairs, 6 based on Foata normal form. 31/433 useless extension candidates. Maximal degree in co-relation 338. Up to 22 conditions per place. [2023-11-21 22:13:15,722 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 9 selfloop transitions, 2 changer transitions 1/237 dead transitions. [2023-11-21 22:13:15,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 237 transitions, 506 flow [2023-11-21 22:13:15,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 737 transitions. [2023-11-21 22:13:15,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-21 22:13:15,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 737 transitions. [2023-11-21 22:13:15,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 737 transitions. [2023-11-21 22:13:15,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:15,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 737 transitions. [2023-11-21 22:13:15,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,735 INFO L175 Difference]: Start difference. First operand has 260 places, 268 transitions, 546 flow. Second operand 3 states and 737 transitions. [2023-11-21 22:13:15,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 237 transitions, 506 flow [2023-11-21 22:13:15,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 237 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:13:15,743 INFO L231 Difference]: Finished difference. Result has 239 places, 236 transitions, 486 flow [2023-11-21 22:13:15,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=239, PETRI_TRANSITIONS=236} [2023-11-21 22:13:15,745 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -21 predicate places. [2023-11-21 22:13:15,745 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 236 transitions, 486 flow [2023-11-21 22:13:15,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:15,746 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] [2023-11-21 22:13:15,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:13:15,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:15,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1547561010, now seen corresponding path program 1 times [2023-11-21 22:13:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:15,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635001302] [2023-11-21 22:13:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635001302] [2023-11-21 22:13:15,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635001302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:15,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:15,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:15,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069885194] [2023-11-21 22:13:15,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:15,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:15,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:15,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:15,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:15,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 268 [2023-11-21 22:13:15,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 236 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:15,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:15,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 268 [2023-11-21 22:13:15,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:16,100 INFO L124 PetriNetUnfolderBase]: 61/819 cut-off events. [2023-11-21 22:13:16,100 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-21 22:13:16,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 819 events. 61/819 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4605 event pairs, 42 based on Foata normal form. 0/687 useless extension candidates. Maximal degree in co-relation 924. Up to 102 conditions per place. [2023-11-21 22:13:16,111 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 17 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2023-11-21 22:13:16,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 522 flow [2023-11-21 22:13:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:16,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:16,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2023-11-21 22:13:16,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8756218905472637 [2023-11-21 22:13:16,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 704 transitions. [2023-11-21 22:13:16,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 704 transitions. [2023-11-21 22:13:16,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:16,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 704 transitions. [2023-11-21 22:13:16,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,122 INFO L175 Difference]: Start difference. First operand has 239 places, 236 transitions, 486 flow. Second operand 3 states and 704 transitions. [2023-11-21 22:13:16,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 522 flow [2023-11-21 22:13:16,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 235 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:16,129 INFO L231 Difference]: Finished difference. Result has 237 places, 235 transitions, 484 flow [2023-11-21 22:13:16,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=237, PETRI_TRANSITIONS=235} [2023-11-21 22:13:16,131 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -23 predicate places. [2023-11-21 22:13:16,131 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 235 transitions, 484 flow [2023-11-21 22:13:16,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:16,132 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] [2023-11-21 22:13:16,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:13:16,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:16,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash -526068842, now seen corresponding path program 1 times [2023-11-21 22:13:16,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:16,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244308891] [2023-11-21 22:13:16,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:16,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:16,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:16,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244308891] [2023-11-21 22:13:16,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244308891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:16,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:16,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985550143] [2023-11-21 22:13:16,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:16,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:16,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:16,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:16,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:16,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 268 [2023-11-21 22:13:16,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 235 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:16,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 268 [2023-11-21 22:13:16,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:16,334 INFO L124 PetriNetUnfolderBase]: 25/560 cut-off events. [2023-11-21 22:13:16,334 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:13:16,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 560 events. 25/560 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2449 event pairs, 12 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 588. Up to 39 conditions per place. [2023-11-21 22:13:16,341 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 14 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2023-11-21 22:13:16,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 234 transitions, 514 flow [2023-11-21 22:13:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2023-11-21 22:13:16,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8830845771144279 [2023-11-21 22:13:16,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2023-11-21 22:13:16,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2023-11-21 22:13:16,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:16,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2023-11-21 22:13:16,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,352 INFO L175 Difference]: Start difference. First operand has 237 places, 235 transitions, 484 flow. Second operand 3 states and 710 transitions. [2023-11-21 22:13:16,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 234 transitions, 514 flow [2023-11-21 22:13:16,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 234 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:16,358 INFO L231 Difference]: Finished difference. Result has 236 places, 234 transitions, 482 flow [2023-11-21 22:13:16,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=236, PETRI_TRANSITIONS=234} [2023-11-21 22:13:16,360 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -24 predicate places. [2023-11-21 22:13:16,360 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 234 transitions, 482 flow [2023-11-21 22:13:16,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:16,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:16,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:13:16,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:16,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:16,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1788792121, now seen corresponding path program 1 times [2023-11-21 22:13:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:16,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491439864] [2023-11-21 22:13:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:16,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:16,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491439864] [2023-11-21 22:13:16,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491439864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:16,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:16,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:16,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114253130] [2023-11-21 22:13:16,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:16,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:16,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:16,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:16,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 268 [2023-11-21 22:13:16,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 234 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:16,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 268 [2023-11-21 22:13:16,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:16,614 INFO L124 PetriNetUnfolderBase]: 39/760 cut-off events. [2023-11-21 22:13:16,615 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-21 22:13:16,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 760 events. 39/760 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4155 event pairs, 20 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 800. Up to 56 conditions per place. [2023-11-21 22:13:16,625 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 16 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2023-11-21 22:13:16,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 229 transitions, 506 flow [2023-11-21 22:13:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-11-21 22:13:16,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743781094527363 [2023-11-21 22:13:16,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-11-21 22:13:16,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-11-21 22:13:16,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:16,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-11-21 22:13:16,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,635 INFO L175 Difference]: Start difference. First operand has 236 places, 234 transitions, 482 flow. Second operand 3 states and 703 transitions. [2023-11-21 22:13:16,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 229 transitions, 506 flow [2023-11-21 22:13:16,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 229 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:16,641 INFO L231 Difference]: Finished difference. Result has 231 places, 229 transitions, 470 flow [2023-11-21 22:13:16,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=231, PETRI_TRANSITIONS=229} [2023-11-21 22:13:16,643 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-21 22:13:16,643 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 229 transitions, 470 flow [2023-11-21 22:13:16,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:16,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:16,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:13:16,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:16,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash 822062733, now seen corresponding path program 1 times [2023-11-21 22:13:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:16,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100381342] [2023-11-21 22:13:16,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:16,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100381342] [2023-11-21 22:13:16,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100381342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:16,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:16,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:16,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278086083] [2023-11-21 22:13:16,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:16,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:16,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:16,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 268 [2023-11-21 22:13:16,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 229 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:16,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 268 [2023-11-21 22:13:16,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:16,859 INFO L124 PetriNetUnfolderBase]: 47/718 cut-off events. [2023-11-21 22:13:16,859 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-21 22:13:16,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 718 events. 47/718 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3554 event pairs, 30 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 780. Up to 76 conditions per place. [2023-11-21 22:13:16,870 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 15 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2023-11-21 22:13:16,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 228 transitions, 502 flow [2023-11-21 22:13:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2023-11-21 22:13:16,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8805970149253731 [2023-11-21 22:13:16,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2023-11-21 22:13:16,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2023-11-21 22:13:16,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:16,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2023-11-21 22:13:16,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,880 INFO L175 Difference]: Start difference. First operand has 231 places, 229 transitions, 470 flow. Second operand 3 states and 708 transitions. [2023-11-21 22:13:16,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 228 transitions, 502 flow [2023-11-21 22:13:16,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 228 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:13:16,887 INFO L231 Difference]: Finished difference. Result has 231 places, 228 transitions, 471 flow [2023-11-21 22:13:16,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=471, PETRI_PLACES=231, PETRI_TRANSITIONS=228} [2023-11-21 22:13:16,889 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-21 22:13:16,889 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 228 transitions, 471 flow [2023-11-21 22:13:16,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:16,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:16,890 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 22:13:16,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:13:16,890 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:16,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:16,891 INFO L85 PathProgramCache]: Analyzing trace with hash 804366495, now seen corresponding path program 1 times [2023-11-21 22:13:16,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:16,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580599391] [2023-11-21 22:13:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:16,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:17,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580599391] [2023-11-21 22:13:17,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580599391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:17,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:17,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155316747] [2023-11-21 22:13:17,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:17,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:17,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:17,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-21 22:13:17,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 228 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:17,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-21 22:13:17,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:17,461 INFO L124 PetriNetUnfolderBase]: 164/2130 cut-off events. [2023-11-21 22:13:17,461 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-21 22:13:17,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 2130 events. 164/2130 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17571 event pairs, 57 based on Foata normal form. 0/1825 useless extension candidates. Maximal degree in co-relation 2419. Up to 204 conditions per place. [2023-11-21 22:13:17,531 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 32 selfloop transitions, 14 changer transitions 0/247 dead transitions. [2023-11-21 22:13:17,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 247 transitions, 606 flow [2023-11-21 22:13:17,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:17,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2023-11-21 22:13:17,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8930348258706468 [2023-11-21 22:13:17,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 718 transitions. [2023-11-21 22:13:17,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 718 transitions. [2023-11-21 22:13:17,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:17,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 718 transitions. [2023-11-21 22:13:17,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,544 INFO L175 Difference]: Start difference. First operand has 231 places, 228 transitions, 471 flow. Second operand 3 states and 718 transitions. [2023-11-21 22:13:17,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 247 transitions, 606 flow [2023-11-21 22:13:17,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 247 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:17,551 INFO L231 Difference]: Finished difference. Result has 233 places, 242 transitions, 591 flow [2023-11-21 22:13:17,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=233, PETRI_TRANSITIONS=242} [2023-11-21 22:13:17,553 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -27 predicate places. [2023-11-21 22:13:17,553 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 242 transitions, 591 flow [2023-11-21 22:13:17,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:17,554 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2023-11-21 22:13:17,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:13:17,554 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:17,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:17,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1524110184, now seen corresponding path program 1 times [2023-11-21 22:13:17,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:17,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487489927] [2023-11-21 22:13:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:17,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 22:13:17,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:17,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487489927] [2023-11-21 22:13:17,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487489927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:17,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:17,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:13:17,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155875184] [2023-11-21 22:13:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:17,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:13:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:13:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:13:17,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 268 [2023-11-21 22:13:17,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 242 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:17,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:17,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 268 [2023-11-21 22:13:17,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:18,124 INFO L124 PetriNetUnfolderBase]: 99/2023 cut-off events. [2023-11-21 22:13:18,124 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-21 22:13:18,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 2023 events. 99/2023 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 16517 event pairs, 41 based on Foata normal form. 1/1734 useless extension candidates. Maximal degree in co-relation 2254. Up to 120 conditions per place. [2023-11-21 22:13:18,148 INFO L140 encePairwiseOnDemand]: 264/268 looper letters, 17 selfloop transitions, 0 changer transitions 4/245 dead transitions. [2023-11-21 22:13:18,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 245 transitions, 639 flow [2023-11-21 22:13:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:13:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:13:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1167 transitions. [2023-11-21 22:13:18,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8708955223880597 [2023-11-21 22:13:18,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1167 transitions. [2023-11-21 22:13:18,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1167 transitions. [2023-11-21 22:13:18,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:18,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1167 transitions. [2023-11-21 22:13:18,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.4) internal successors, (1167), 5 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,165 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,165 INFO L175 Difference]: Start difference. First operand has 233 places, 242 transitions, 591 flow. Second operand 5 states and 1167 transitions. [2023-11-21 22:13:18,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 245 transitions, 639 flow [2023-11-21 22:13:18,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 245 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:18,176 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 567 flow [2023-11-21 22:13:18,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2023-11-21 22:13:18,177 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -22 predicate places. [2023-11-21 22:13:18,177 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 567 flow [2023-11-21 22:13:18,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:18,179 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2023-11-21 22:13:18,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:13:18,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-21 22:13:18,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:18,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1650372631, now seen corresponding path program 1 times [2023-11-21 22:13:18,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:18,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123149261] [2023-11-21 22:13:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:18,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:18,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:13:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:18,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:13:18,267 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:13:18,267 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-11-21 22:13:18,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-11-21 22:13:18,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-11-21 22:13:18,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-11-21 22:13:18,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-11-21 22:13:18,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-11-21 22:13:18,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-11-21 22:13:18,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-11-21 22:13:18,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-11-21 22:13:18,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-11-21 22:13:18,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-11-21 22:13:18,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-11-21 22:13:18,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-11-21 22:13:18,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-11-21 22:13:18,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-11-21 22:13:18,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-11-21 22:13:18,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-11-21 22:13:18,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-11-21 22:13:18,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-11-21 22:13:18,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-11-21 22:13:18,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-11-21 22:13:18,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-11-21 22:13:18,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-11-21 22:13:18,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-11-21 22:13:18,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-11-21 22:13:18,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-11-21 22:13:18,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-11-21 22:13:18,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-11-21 22:13:18,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-11-21 22:13:18,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-11-21 22:13:18,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-11-21 22:13:18,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-11-21 22:13:18,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-11-21 22:13:18,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-11-21 22:13:18,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-11-21 22:13:18,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-11-21 22:13:18,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-11-21 22:13:18,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-11-21 22:13:18,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-11-21 22:13:18,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-11-21 22:13:18,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-11-21 22:13:18,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-11-21 22:13:18,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-11-21 22:13:18,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-11-21 22:13:18,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-11-21 22:13:18,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-11-21 22:13:18,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-11-21 22:13:18,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-11-21 22:13:18,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-11-21 22:13:18,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-11-21 22:13:18,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-11-21 22:13:18,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-11-21 22:13:18,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-11-21 22:13:18,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:13:18,280 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:18,281 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:13:18,282 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:13:18,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:13:18,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 361 transitions, 740 flow [2023-11-21 22:13:18,450 INFO L124 PetriNetUnfolderBase]: 21/404 cut-off events. [2023-11-21 22:13:18,450 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:13:18,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 404 events. 21/404 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1174 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 300. Up to 8 conditions per place. [2023-11-21 22:13:18,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 361 transitions, 740 flow [2023-11-21 22:13:18,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 361 transitions, 740 flow [2023-11-21 22:13:18,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:18,468 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;@6f568bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:18,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-21 22:13:18,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:18,471 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:13:18,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:18,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:18,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:18,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:18,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1095128514, now seen corresponding path program 1 times [2023-11-21 22:13:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149146696] [2023-11-21 22:13:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:18,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:18,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149146696] [2023-11-21 22:13:18,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149146696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:18,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:18,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784871605] [2023-11-21 22:13:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:18,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:18,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 361 [2023-11-21 22:13:18,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 361 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:18,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 361 [2023-11-21 22:13:18,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:18,880 INFO L124 PetriNetUnfolderBase]: 79/1518 cut-off events. [2023-11-21 22:13:18,880 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-11-21 22:13:18,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1518 events. 79/1518 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10981 event pairs, 42 based on Foata normal form. 111/1363 useless extension candidates. Maximal degree in co-relation 1094. Up to 85 conditions per place. [2023-11-21 22:13:18,916 INFO L140 encePairwiseOnDemand]: 334/361 looper letters, 12 selfloop transitions, 2 changer transitions 1/320 dead transitions. [2023-11-21 22:13:18,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 320 transitions, 686 flow [2023-11-21 22:13:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 993 transitions. [2023-11-21 22:13:18,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9168975069252078 [2023-11-21 22:13:18,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 993 transitions. [2023-11-21 22:13:18,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 993 transitions. [2023-11-21 22:13:18,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:18,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 993 transitions. [2023-11-21 22:13:18,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,928 INFO L175 Difference]: Start difference. First operand has 350 places, 361 transitions, 740 flow. Second operand 3 states and 993 transitions. [2023-11-21 22:13:18,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 320 transitions, 686 flow [2023-11-21 22:13:18,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 320 transitions, 684 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-21 22:13:18,938 INFO L231 Difference]: Finished difference. Result has 322 places, 319 transitions, 658 flow [2023-11-21 22:13:18,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=319} [2023-11-21 22:13:18,940 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2023-11-21 22:13:18,940 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 319 transitions, 658 flow [2023-11-21 22:13:18,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:18,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:18,942 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] [2023-11-21 22:13:18,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:13:18,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:18,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1230808398, now seen corresponding path program 1 times [2023-11-21 22:13:18,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:18,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356536133] [2023-11-21 22:13:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:18,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356536133] [2023-11-21 22:13:18,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356536133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:18,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:18,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685646598] [2023-11-21 22:13:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:19,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:19,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:19,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-21 22:13:19,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 319 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:19,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:19,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-21 22:13:19,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:20,383 INFO L124 PetriNetUnfolderBase]: 763/5752 cut-off events. [2023-11-21 22:13:20,384 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-11-21 22:13:20,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6964 conditions, 5752 events. 763/5752 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 60889 event pairs, 630 based on Foata normal form. 0/4822 useless extension candidates. Maximal degree in co-relation 6935. Up to 1033 conditions per place. [2023-11-21 22:13:20,483 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 24 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2023-11-21 22:13:20,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 318 transitions, 708 flow [2023-11-21 22:13:20,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2023-11-21 22:13:20,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8725761772853186 [2023-11-21 22:13:20,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2023-11-21 22:13:20,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2023-11-21 22:13:20,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:20,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2023-11-21 22:13:20,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:20,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:20,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:20,530 INFO L175 Difference]: Start difference. First operand has 322 places, 319 transitions, 658 flow. Second operand 3 states and 945 transitions. [2023-11-21 22:13:20,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 318 transitions, 708 flow [2023-11-21 22:13:20,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 318 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:20,539 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 656 flow [2023-11-21 22:13:20,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2023-11-21 22:13:20,540 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -30 predicate places. [2023-11-21 22:13:20,540 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 656 flow [2023-11-21 22:13:20,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:20,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:20,541 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] [2023-11-21 22:13:20,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:13:20,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:20,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1521495009, now seen corresponding path program 1 times [2023-11-21 22:13:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:20,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305013680] [2023-11-21 22:13:20,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:20,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:20,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:20,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305013680] [2023-11-21 22:13:20,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305013680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:20,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:20,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:20,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890762017] [2023-11-21 22:13:20,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:20,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:20,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:20,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:20,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:20,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 361 [2023-11-21 22:13:20,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:20,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:20,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 361 [2023-11-21 22:13:20,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:21,096 INFO L124 PetriNetUnfolderBase]: 163/2265 cut-off events. [2023-11-21 22:13:21,096 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-21 22:13:21,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 2265 events. 163/2265 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19038 event pairs, 108 based on Foata normal form. 0/1882 useless extension candidates. Maximal degree in co-relation 2501. Up to 199 conditions per place. [2023-11-21 22:13:21,134 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 18 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-21 22:13:21,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 317 transitions, 694 flow [2023-11-21 22:13:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-11-21 22:13:21,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8836565096952909 [2023-11-21 22:13:21,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-11-21 22:13:21,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-11-21 22:13:21,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:21,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-11-21 22:13:21,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:21,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:21,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:21,166 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 656 flow. Second operand 3 states and 957 transitions. [2023-11-21 22:13:21,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 317 transitions, 694 flow [2023-11-21 22:13:21,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 317 transitions, 690 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:21,174 INFO L231 Difference]: Finished difference. Result has 319 places, 317 transitions, 654 flow [2023-11-21 22:13:21,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=319, PETRI_TRANSITIONS=317} [2023-11-21 22:13:21,176 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -31 predicate places. [2023-11-21 22:13:21,177 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 317 transitions, 654 flow [2023-11-21 22:13:21,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:21,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:21,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:21,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:13:21,178 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:21,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:21,179 INFO L85 PathProgramCache]: Analyzing trace with hash 348150032, now seen corresponding path program 1 times [2023-11-21 22:13:21,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:21,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576960487] [2023-11-21 22:13:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:21,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576960487] [2023-11-21 22:13:21,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576960487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:21,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:21,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:21,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147195893] [2023-11-21 22:13:21,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:21,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:21,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:21,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:21,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:21,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-21 22:13:21,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 317 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:21,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:21,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-21 22:13:21,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:22,094 INFO L124 PetriNetUnfolderBase]: 325/4054 cut-off events. [2023-11-21 22:13:22,094 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-11-21 22:13:22,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4536 conditions, 4054 events. 325/4054 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 41107 event pairs, 220 based on Foata normal form. 0/3390 useless extension candidates. Maximal degree in co-relation 4494. Up to 381 conditions per place. [2023-11-21 22:13:22,178 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 21 selfloop transitions, 1 changer transitions 0/311 dead transitions. [2023-11-21 22:13:22,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 311 transitions, 686 flow [2023-11-21 22:13:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 946 transitions. [2023-11-21 22:13:22,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8734995383194829 [2023-11-21 22:13:22,184 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 946 transitions. [2023-11-21 22:13:22,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 946 transitions. [2023-11-21 22:13:22,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:22,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 946 transitions. [2023-11-21 22:13:22,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:22,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:22,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:22,196 INFO L175 Difference]: Start difference. First operand has 319 places, 317 transitions, 654 flow. Second operand 3 states and 946 transitions. [2023-11-21 22:13:22,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 311 transitions, 686 flow [2023-11-21 22:13:22,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 311 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:22,207 INFO L231 Difference]: Finished difference. Result has 313 places, 311 transitions, 640 flow [2023-11-21 22:13:22,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=313, PETRI_TRANSITIONS=311} [2023-11-21 22:13:22,208 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-21 22:13:22,209 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 311 transitions, 640 flow [2023-11-21 22:13:22,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:22,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:22,210 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 22:13:22,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:13:22,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:22,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:22,211 INFO L85 PathProgramCache]: Analyzing trace with hash -516510762, now seen corresponding path program 1 times [2023-11-21 22:13:22,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:22,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124046056] [2023-11-21 22:13:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124046056] [2023-11-21 22:13:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124046056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:22,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:22,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:22,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351776638] [2023-11-21 22:13:22,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:22,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:22,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:22,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:22,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:22,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 361 [2023-11-21 22:13:22,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 311 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:22,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:22,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 361 [2023-11-21 22:13:22,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:23,446 INFO L124 PetriNetUnfolderBase]: 493/4316 cut-off events. [2023-11-21 22:13:23,447 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-21 22:13:23,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5104 conditions, 4316 events. 493/4316 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 41118 event pairs, 390 based on Foata normal form. 0/3625 useless extension candidates. Maximal degree in co-relation 5062. Up to 652 conditions per place. [2023-11-21 22:13:23,625 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 21 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2023-11-21 22:13:23,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 310 transitions, 684 flow [2023-11-21 22:13:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions. [2023-11-21 22:13:23,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781163434903048 [2023-11-21 22:13:23,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions. [2023-11-21 22:13:23,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions. [2023-11-21 22:13:23,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:23,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions. [2023-11-21 22:13:23,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:23,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:23,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:23,636 INFO L175 Difference]: Start difference. First operand has 313 places, 311 transitions, 640 flow. Second operand 3 states and 951 transitions. [2023-11-21 22:13:23,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 310 transitions, 684 flow [2023-11-21 22:13:23,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 310 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:13:23,644 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 641 flow [2023-11-21 22:13:23,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2023-11-21 22:13:23,645 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-21 22:13:23,645 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 641 flow [2023-11-21 22:13:23,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:23,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:23,646 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 22:13:23,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:13:23,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:23,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:23,647 INFO L85 PathProgramCache]: Analyzing trace with hash 953950907, now seen corresponding path program 1 times [2023-11-21 22:13:23,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:23,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207574566] [2023-11-21 22:13:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:23,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207574566] [2023-11-21 22:13:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207574566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:23,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:23,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720811252] [2023-11-21 22:13:23,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:23,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:23,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:23,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 361 [2023-11-21 22:13:23,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:23,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:23,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 361 [2023-11-21 22:13:23,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:28,671 INFO L124 PetriNetUnfolderBase]: 4171/30338 cut-off events. [2023-11-21 22:13:28,671 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2023-11-21 22:13:28,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36797 conditions, 30338 events. 4171/30338 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 443446 event pairs, 1667 based on Foata normal form. 0/25726 useless extension candidates. Maximal degree in co-relation 36755. Up to 4132 conditions per place. [2023-11-21 22:13:29,115 INFO L140 encePairwiseOnDemand]: 331/361 looper letters, 48 selfloop transitions, 21 changer transitions 0/339 dead transitions. [2023-11-21 22:13:29,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 339 transitions, 847 flow [2023-11-21 22:13:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2023-11-21 22:13:29,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8864265927977839 [2023-11-21 22:13:29,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2023-11-21 22:13:29,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2023-11-21 22:13:29,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:29,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2023-11-21 22:13:29,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:29,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:29,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:29,129 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 641 flow. Second operand 3 states and 960 transitions. [2023-11-21 22:13:29,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 339 transitions, 847 flow [2023-11-21 22:13:29,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 339 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:29,140 INFO L231 Difference]: Finished difference. Result has 315 places, 331 transitions, 823 flow [2023-11-21 22:13:29,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=315, PETRI_TRANSITIONS=331} [2023-11-21 22:13:29,141 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -35 predicate places. [2023-11-21 22:13:29,145 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 331 transitions, 823 flow [2023-11-21 22:13:29,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:29,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:29,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:29,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:13:29,146 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:29,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:29,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1094365633, now seen corresponding path program 1 times [2023-11-21 22:13:29,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:29,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979111219] [2023-11-21 22:13:29,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:29,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979111219] [2023-11-21 22:13:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979111219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:29,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:13:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655827650] [2023-11-21 22:13:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:29,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:13:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:13:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:13:29,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 361 [2023-11-21 22:13:29,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 331 transitions, 823 flow. Second operand has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:29,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:29,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 361 [2023-11-21 22:13:29,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:32,051 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-21 22:13:32,052 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,052 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 22:13:32,052 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,052 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 22:13:32,168 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-21 22:13:32,169 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,169 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 22:13:32,169 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,169 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,169 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 22:13:32,379 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-21 22:13:32,379 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,379 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,380 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:32,380 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:33,498 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 279#L1019true, 379#true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-21 22:13:33,498 INFO L294 olderBase$Statistics]: this new event has 143 ancestors and is cut-off event [2023-11-21 22:13:33,499 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:33,499 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:33,499 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:13:36,154 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [268#L1032true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-21 22:13:36,154 INFO L294 olderBase$Statistics]: this new event has 178 ancestors and is cut-off event [2023-11-21 22:13:36,154 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-21 22:13:36,154 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-21 22:13:36,155 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-21 22:13:36,346 INFO L124 PetriNetUnfolderBase]: 3553/39103 cut-off events. [2023-11-21 22:13:36,346 INFO L125 PetriNetUnfolderBase]: For 980/983 co-relation queries the response was YES. [2023-11-21 22:13:36,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46625 conditions, 39103 events. 3553/39103 cut-off events. For 980/983 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 611323 event pairs, 1741 based on Foata normal form. 59/33513 useless extension candidates. Maximal degree in co-relation 46583. Up to 3237 conditions per place. [2023-11-21 22:13:36,895 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 27 selfloop transitions, 3 changer transitions 0/344 dead transitions. [2023-11-21 22:13:36,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 929 flow [2023-11-21 22:13:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:13:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:13:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2023-11-21 22:13:36,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.899584487534626 [2023-11-21 22:13:36,901 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2023-11-21 22:13:36,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2023-11-21 22:13:36,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:36,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2023-11-21 22:13:36,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:36,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:36,911 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:36,912 INFO L175 Difference]: Start difference. First operand has 315 places, 331 transitions, 823 flow. Second operand 4 states and 1299 transitions. [2023-11-21 22:13:36,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 929 flow [2023-11-21 22:13:36,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 344 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:36,965 INFO L231 Difference]: Finished difference. Result has 317 places, 331 transitions, 791 flow [2023-11-21 22:13:36,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=791, PETRI_PLACES=317, PETRI_TRANSITIONS=331} [2023-11-21 22:13:36,968 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -33 predicate places. [2023-11-21 22:13:36,968 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 331 transitions, 791 flow [2023-11-21 22:13:36,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:36,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:36,969 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:36,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:13:36,970 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:36,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:36,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2086250991, now seen corresponding path program 1 times [2023-11-21 22:13:36,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:36,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876764458] [2023-11-21 22:13:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:36,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-21 22:13:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:37,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876764458] [2023-11-21 22:13:37,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876764458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:37,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:37,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:13:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248378778] [2023-11-21 22:13:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:37,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:13:37,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:13:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:13:37,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 361 [2023-11-21 22:13:37,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 331 transitions, 791 flow. Second operand has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:37,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:37,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 361 [2023-11-21 22:13:37,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:39,200 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][155], [Black: 382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 194#L1028-6true, 332#L1019true, 385#true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 379#true, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-21 22:13:39,200 INFO L294 olderBase$Statistics]: this new event has 138 ancestors and is cut-off event [2023-11-21 22:13:39,200 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-21 22:13:39,200 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-21 22:13:39,200 INFO L297 olderBase$Statistics]: existing Event has 127 ancestors and is cut-off event [2023-11-21 22:13:39,492 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][123], [382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 332#L1019true, 385#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 280#L1019true, thrThread2of3ForFork0InUse, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-21 22:13:39,492 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-21 22:13:39,492 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 22:13:39,492 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 22:13:39,493 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 22:13:41,702 INFO L124 PetriNetUnfolderBase]: 2233/24524 cut-off events. [2023-11-21 22:13:41,703 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-21 22:13:41,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28569 conditions, 24524 events. 2233/24524 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 360400 event pairs, 1151 based on Foata normal form. 1/20858 useless extension candidates. Maximal degree in co-relation 28525. Up to 2300 conditions per place. [2023-11-21 22:13:42,117 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 20 selfloop transitions, 0 changer transitions 4/334 dead transitions. [2023-11-21 22:13:42,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 334 transitions, 845 flow [2023-11-21 22:13:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:13:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:13:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1580 transitions. [2023-11-21 22:13:42,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8753462603878116 [2023-11-21 22:13:42,136 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1580 transitions. [2023-11-21 22:13:42,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1580 transitions. [2023-11-21 22:13:42,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:42,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1580 transitions. [2023-11-21 22:13:42,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 316.0) internal successors, (1580), 5 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:42,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:42,153 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:42,154 INFO L175 Difference]: Start difference. First operand has 317 places, 331 transitions, 791 flow. Second operand 5 states and 1580 transitions. [2023-11-21 22:13:42,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 334 transitions, 845 flow [2023-11-21 22:13:42,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 334 transitions, 839 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:13:42,165 INFO L231 Difference]: Finished difference. Result has 321 places, 330 transitions, 789 flow [2023-11-21 22:13:42,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=789, PETRI_PLACES=321, PETRI_TRANSITIONS=330} [2023-11-21 22:13:42,166 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -29 predicate places. [2023-11-21 22:13:42,167 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 330 transitions, 789 flow [2023-11-21 22:13:42,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:42,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:42,168 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:42,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:13:42,169 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-21 22:13:42,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash 63594023, now seen corresponding path program 1 times [2023-11-21 22:13:42,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:42,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498702918] [2023-11-21 22:13:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:42,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:42,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:13:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:13:42,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:13:42,271 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:13:42,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (67 of 68 remaining) [2023-11-21 22:13:42,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-11-21 22:13:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-11-21 22:13:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-11-21 22:13:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-11-21 22:13:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (62 of 68 remaining) [2023-11-21 22:13:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-11-21 22:13:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-11-21 22:13:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-11-21 22:13:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-11-21 22:13:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-11-21 22:13:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-11-21 22:13:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-11-21 22:13:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-11-21 22:13:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-11-21 22:13:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-11-21 22:13:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-11-21 22:13:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-11-21 22:13:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-11-21 22:13:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-11-21 22:13:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-11-21 22:13:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (46 of 68 remaining) [2023-11-21 22:13:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-11-21 22:13:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-11-21 22:13:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-11-21 22:13:42,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-11-21 22:13:42,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-11-21 22:13:42,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-11-21 22:13:42,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-11-21 22:13:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-11-21 22:13:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-11-21 22:13:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-11-21 22:13:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-11-21 22:13:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-11-21 22:13:42,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2023-11-21 22:13:42,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 68 remaining) [2023-11-21 22:13:42,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 68 remaining) [2023-11-21 22:13:42,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-11-21 22:13:42,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-11-21 22:13:42,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-11-21 22:13:42,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-11-21 22:13:42,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 68 remaining) [2023-11-21 22:13:42,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-11-21 22:13:42,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-11-21 22:13:42,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-11-21 22:13:42,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-11-21 22:13:42,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-11-21 22:13:42,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-11-21 22:13:42,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-11-21 22:13:42,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-11-21 22:13:42,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-11-21 22:13:42,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-11-21 22:13:42,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-11-21 22:13:42,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-11-21 22:13:42,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-11-21 22:13:42,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-11-21 22:13:42,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 68 remaining) [2023-11-21 22:13:42,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-11-21 22:13:42,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-11-21 22:13:42,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-11-21 22:13:42,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-11-21 22:13:42,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-11-21 22:13:42,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-11-21 22:13:42,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-11-21 22:13:42,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-11-21 22:13:42,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-11-21 22:13:42,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-11-21 22:13:42,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-11-21 22:13:42,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:13:42,288 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:42,289 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:13:42,290 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:13:42,380 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:13:42,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 454 transitions, 936 flow [2023-11-21 22:13:42,582 INFO L124 PetriNetUnfolderBase]: 27/512 cut-off events. [2023-11-21 22:13:42,582 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:13:42,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 512 events. 27/512 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1815 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 412. Up to 10 conditions per place. [2023-11-21 22:13:42,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 454 transitions, 936 flow [2023-11-21 22:13:42,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 454 transitions, 936 flow [2023-11-21 22:13:42,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:42,612 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;@6f568bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:42,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-11-21 22:13:42,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:42,615 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:13:42,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:42,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:42,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:42,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-21 22:13:42,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:42,617 INFO L85 PathProgramCache]: Analyzing trace with hash 448939332, now seen corresponding path program 1 times [2023-11-21 22:13:42,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:42,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155287499] [2023-11-21 22:13:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:42,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:42,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155287499] [2023-11-21 22:13:42,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155287499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:42,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:42,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876014396] [2023-11-21 22:13:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:42,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:42,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:42,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 454 [2023-11-21 22:13:42,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 454 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:42,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:42,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 454 [2023-11-21 22:13:42,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:44,015 INFO L124 PetriNetUnfolderBase]: 321/4733 cut-off events. [2023-11-21 22:13:44,015 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-21 22:13:44,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5250 conditions, 4733 events. 321/4733 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 48586 event pairs, 204 based on Foata normal form. 388/4280 useless extension candidates. Maximal degree in co-relation 3422. Up to 328 conditions per place. [2023-11-21 22:13:44,164 INFO L140 encePairwiseOnDemand]: 420/454 looper letters, 15 selfloop transitions, 2 changer transitions 1/403 dead transitions. [2023-11-21 22:13:44,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 403 transitions, 868 flow [2023-11-21 22:13:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2023-11-21 22:13:44,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2023-11-21 22:13:44,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2023-11-21 22:13:44,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2023-11-21 22:13:44,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:44,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2023-11-21 22:13:44,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:44,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:44,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:44,183 INFO L175 Difference]: Start difference. First operand has 440 places, 454 transitions, 936 flow. Second operand 3 states and 1249 transitions. [2023-11-21 22:13:44,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 403 transitions, 868 flow [2023-11-21 22:13:44,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 403 transitions, 862 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-21 22:13:44,196 INFO L231 Difference]: Finished difference. Result has 405 places, 402 transitions, 830 flow [2023-11-21 22:13:44,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=405, PETRI_TRANSITIONS=402} [2023-11-21 22:13:44,198 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -35 predicate places. [2023-11-21 22:13:44,198 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 402 transitions, 830 flow [2023-11-21 22:13:44,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:44,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:44,199 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] [2023-11-21 22:13:44,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-21 22:13:44,200 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-21 22:13:44,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash -712184242, now seen corresponding path program 1 times [2023-11-21 22:13:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431948875] [2023-11-21 22:13:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:44,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431948875] [2023-11-21 22:13:44,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431948875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:44,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:44,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030123609] [2023-11-21 22:13:44,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:44,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 454 [2023-11-21 22:13:44,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 402 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:44,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:44,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 454 [2023-11-21 22:13:44,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:53,236 INFO L124 PetriNetUnfolderBase]: 7737/42339 cut-off events. [2023-11-21 22:13:53,236 INFO L125 PetriNetUnfolderBase]: For 1204/1204 co-relation queries the response was YES. [2023-11-21 22:13:53,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53156 conditions, 42339 events. 7737/42339 cut-off events. For 1204/1204 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 620494 event pairs, 6804 based on Foata normal form. 0/35809 useless extension candidates. Maximal degree in co-relation 53126. Up to 9608 conditions per place. [2023-11-21 22:13:54,399 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/401 dead transitions. [2023-11-21 22:13:54,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 401 transitions, 894 flow [2023-11-21 22:13:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-11-21 22:13:54,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8707782672540382 [2023-11-21 22:13:54,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-11-21 22:13:54,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-11-21 22:13:54,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:54,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-11-21 22:13:54,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:54,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:54,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:54,419 INFO L175 Difference]: Start difference. First operand has 405 places, 402 transitions, 830 flow. Second operand 3 states and 1186 transitions. [2023-11-21 22:13:54,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 401 transitions, 894 flow [2023-11-21 22:13:54,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 401 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:54,435 INFO L231 Difference]: Finished difference. Result has 403 places, 401 transitions, 828 flow [2023-11-21 22:13:54,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=403, PETRI_TRANSITIONS=401} [2023-11-21 22:13:54,436 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -37 predicate places. [2023-11-21 22:13:54,437 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 401 transitions, 828 flow [2023-11-21 22:13:54,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:54,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:54,438 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] [2023-11-21 22:13:54,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-21 22:13:54,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-21 22:13:54,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 700684965, now seen corresponding path program 1 times [2023-11-21 22:13:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:54,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138343605] [2023-11-21 22:13:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:54,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:54,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138343605] [2023-11-21 22:13:54,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138343605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:54,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:54,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:54,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906786867] [2023-11-21 22:13:54,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:54,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:54,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:54,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 454 [2023-11-21 22:13:54,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 401 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:54,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:54,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 454 [2023-11-21 22:13:54,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:56,800 INFO L124 PetriNetUnfolderBase]: 909/9314 cut-off events. [2023-11-21 22:13:56,800 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2023-11-21 22:13:57,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10609 conditions, 9314 events. 909/9314 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 111073 event pairs, 684 based on Foata normal form. 0/7741 useless extension candidates. Maximal degree in co-relation 10574. Up to 1031 conditions per place. [2023-11-21 22:13:57,097 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 22 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2023-11-21 22:13:57,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 400 transitions, 874 flow [2023-11-21 22:13:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1204 transitions. [2023-11-21 22:13:57,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8839941262848752 [2023-11-21 22:13:57,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1204 transitions. [2023-11-21 22:13:57,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1204 transitions. [2023-11-21 22:13:57,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:57,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1204 transitions. [2023-11-21 22:13:57,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:57,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:57,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:57,116 INFO L175 Difference]: Start difference. First operand has 403 places, 401 transitions, 828 flow. Second operand 3 states and 1204 transitions. [2023-11-21 22:13:57,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 400 transitions, 874 flow [2023-11-21 22:13:57,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 400 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:57,130 INFO L231 Difference]: Finished difference. Result has 402 places, 400 transitions, 826 flow [2023-11-21 22:13:57,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=402, PETRI_TRANSITIONS=400} [2023-11-21 22:13:57,132 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -38 predicate places. [2023-11-21 22:13:57,132 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 400 transitions, 826 flow [2023-11-21 22:13:57,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:57,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:57,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:13:57,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-21 22:13:57,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-21 22:13:57,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:57,134 INFO L85 PathProgramCache]: Analyzing trace with hash 370585110, now seen corresponding path program 1 times [2023-11-21 22:13:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:57,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480617630] [2023-11-21 22:13:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:57,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:57,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480617630] [2023-11-21 22:13:57,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480617630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:57,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:57,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:13:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927455029] [2023-11-21 22:13:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:57,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:57,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:57,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:57,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 454 [2023-11-21 22:13:57,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 400 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:13:57,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:57,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 454 [2023-11-21 22:13:57,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:01,224 INFO L124 PetriNetUnfolderBase]: 2261/21173 cut-off events. [2023-11-21 22:14:01,224 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2023-11-21 22:14:01,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24156 conditions, 21173 events. 2261/21173 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 298465 event pairs, 1720 based on Foata normal form. 0/17737 useless extension candidates. Maximal degree in co-relation 24113. Up to 2506 conditions per place. [2023-11-21 22:14:01,778 INFO L140 encePairwiseOnDemand]: 446/454 looper letters, 26 selfloop transitions, 1 changer transitions 0/393 dead transitions. [2023-11-21 22:14:01,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 393 transitions, 866 flow [2023-11-21 22:14:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-21 22:14:01,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8729809104258444 [2023-11-21 22:14:01,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-21 22:14:01,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-21 22:14:01,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:01,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-21 22:14:01,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:01,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:01,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:01,795 INFO L175 Difference]: Start difference. First operand has 402 places, 400 transitions, 826 flow. Second operand 3 states and 1189 transitions. [2023-11-21 22:14:01,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 393 transitions, 866 flow [2023-11-21 22:14:01,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 393 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:01,806 INFO L231 Difference]: Finished difference. Result has 395 places, 393 transitions, 810 flow [2023-11-21 22:14:01,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=395, PETRI_TRANSITIONS=393} [2023-11-21 22:14:01,808 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -45 predicate places. [2023-11-21 22:14:01,808 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 393 transitions, 810 flow [2023-11-21 22:14:01,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:01,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:01,809 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 22:14:01,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-21 22:14:01,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-21 22:14:01,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1188644132, now seen corresponding path program 1 times [2023-11-21 22:14:01,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:01,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462662884] [2023-11-21 22:14:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:01,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:01,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:01,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462662884] [2023-11-21 22:14:01,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462662884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:01,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:01,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:01,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615271425] [2023-11-21 22:14:01,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:01,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:01,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:01,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:01,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 454 [2023-11-21 22:14:01,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 393 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:01,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:01,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 454 [2023-11-21 22:14:01,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand