./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:12:17,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:12:18,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:12:18,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:12:18,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:12:18,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:12:18,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:12:18,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:12:18,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:12:18,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:12:18,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:12:18,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:12:18,074 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:12:18,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:12:18,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:12:18,078 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:12:18,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:12:18,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:12:18,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:12:18,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:12:18,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:12:18,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:12:18,081 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:12:18,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:12:18,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:12:18,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:12:18,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:12:18,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:12:18,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:12:18,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:12:18,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:18,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:12:18,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:12:18,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:12:18,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:12:18,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:12:18,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:12:18,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:12:18,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:12:18,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:12:18,091 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:12:18,092 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_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a [2023-11-06 22:12:18,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:12:18,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:12:18,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:12:18,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:12:18,490 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:12:18,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-06 22:12:22,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:12:22,702 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:12:22,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-06 22:12:22,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/data/8b0f53655/0512b83ab6fe4d138b5b2903042ef11c/FLAG61e7183a3 [2023-11-06 22:12:22,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/data/8b0f53655/0512b83ab6fe4d138b5b2903042ef11c [2023-11-06 22:12:22,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:12:22,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:12:22,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:22,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:12:22,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:12:22,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:22" (1/1) ... [2023-11-06 22:12:22,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738e780d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:22, skipping insertion in model container [2023-11-06 22:12:22,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:22" (1/1) ... [2023-11-06 22:12:22,790 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:12:23,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:23,061 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:12:23,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:12:23,130 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:12:23,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23 WrapperNode [2023-11-06 22:12:23,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:12:23,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:23,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:12:23,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:12:23,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,227 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 297 [2023-11-06 22:12:23,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:12:23,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:12:23,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:12:23,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:12:23,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:12:23,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:12:23,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:12:23,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:12:23,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (1/1) ... [2023-11-06 22:12:23,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:12:23,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:23,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:12:23,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:12:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:12:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:12:23,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:12:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:12:23,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:12:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:12:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:12:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:12:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:12:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:12:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:12:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:12:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:12:23,413 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:12:23,572 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:12:23,575 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:12:24,448 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:12:24,463 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:12:24,464 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:12:24,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:24 BoogieIcfgContainer [2023-11-06 22:12:24,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:12:24,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:12:24,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:12:24,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:12:24,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:12:22" (1/3) ... [2023-11-06 22:12:24,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676de5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:24, skipping insertion in model container [2023-11-06 22:12:24,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:23" (2/3) ... [2023-11-06 22:12:24,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676de5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:24, skipping insertion in model container [2023-11-06 22:12:24,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:24" (3/3) ... [2023-11-06 22:12:24,482 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-11-06 22:12:24,494 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:12:24,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:12:24,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-06 22:12:24,511 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:12:24,856 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:12:24,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 364 transitions, 742 flow [2023-11-06 22:12:25,164 INFO L124 PetriNetUnfolderBase]: 19/362 cut-off events. [2023-11-06 22:12:25,164 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:12:25,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 362 events. 19/362 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 659 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 235. Up to 3 conditions per place. [2023-11-06 22:12:25,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 364 transitions, 742 flow [2023-11-06 22:12:25,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 341 transitions, 694 flow [2023-11-06 22:12:25,214 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:12:25,240 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 341 transitions, 694 flow [2023-11-06 22:12:25,243 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 341 transitions, 694 flow [2023-11-06 22:12:25,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 341 transitions, 694 flow [2023-11-06 22:12:25,382 INFO L124 PetriNetUnfolderBase]: 18/341 cut-off events. [2023-11-06 22:12:25,382 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:12:25,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 341 events. 18/341 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 657 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 235. Up to 3 conditions per place. [2023-11-06 22:12:25,410 INFO L119 LiptonReduction]: Number of co-enabled transitions 18860 [2023-11-06 22:12:36,651 INFO L134 LiptonReduction]: Checked pairs total: 121190 [2023-11-06 22:12:36,652 INFO L136 LiptonReduction]: Total number of compositions: 279 [2023-11-06 22:12:36,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:12:36,678 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=LoopsAndPotentialCycles, 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;@459c414, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:12:36,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-06 22:12:36,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:12:36,681 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:12:36,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:12:36,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:36,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:12:36,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:36,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 41062, now seen corresponding path program 1 times [2023-11-06 22:12:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087746153] [2023-11-06 22:12:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:36,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:36,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087746153] [2023-11-06 22:12:36,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087746153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:36,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:36,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:12:36,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110370980] [2023-11-06 22:12:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:36,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:12:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:12:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:12:37,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 643 [2023-11-06 22:12:37,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 349.0) internal successors, (698), 2 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:37,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 643 [2023-11-06 22:12:37,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:37,372 INFO L124 PetriNetUnfolderBase]: 350/1237 cut-off events. [2023-11-06 22:12:37,373 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-06 22:12:37,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1813 conditions, 1237 events. 350/1237 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8338 event pairs, 228 based on Foata normal form. 41/1038 useless extension candidates. Maximal degree in co-relation 1598. Up to 545 conditions per place. [2023-11-06 22:12:37,388 INFO L140 encePairwiseOnDemand]: 630/643 looper letters, 33 selfloop transitions, 0 changer transitions 1/118 dead transitions. [2023-11-06 22:12:37,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 316 flow [2023-11-06 22:12:37,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:12:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:12:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 743 transitions. [2023-11-06 22:12:37,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5777604976671851 [2023-11-06 22:12:37,411 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 743 transitions. [2023-11-06 22:12:37,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 743 transitions. [2023-11-06 22:12:37,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:37,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 743 transitions. [2023-11-06 22:12:37,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 371.5) internal successors, (743), 2 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,434 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,436 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 274 flow. Second operand 2 states and 743 transitions. [2023-11-06 22:12:37,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 316 flow [2023-11-06 22:12:37,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:12:37,446 INFO L231 Difference]: Finished difference. Result has 114 places, 117 transitions, 237 flow [2023-11-06 22:12:37,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=237, PETRI_PLACES=114, PETRI_TRANSITIONS=117} [2023-11-06 22:12:37,452 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -13 predicate places. [2023-11-06 22:12:37,453 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 117 transitions, 237 flow [2023-11-06 22:12:37,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 349.0) internal successors, (698), 2 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:37,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:12:37,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:12:37,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:37,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash -670716683, now seen corresponding path program 1 times [2023-11-06 22:12:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:37,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636134330] [2023-11-06 22:12:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:37,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636134330] [2023-11-06 22:12:37,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636134330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:37,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:37,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753797048] [2023-11-06 22:12:37,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:37,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:37,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:37,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 643 [2023-11-06 22:12:37,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:37,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 643 [2023-11-06 22:12:37,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:37,932 INFO L124 PetriNetUnfolderBase]: 380/1402 cut-off events. [2023-11-06 22:12:37,932 INFO L125 PetriNetUnfolderBase]: For 11/27 co-relation queries the response was YES. [2023-11-06 22:12:37,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2004 conditions, 1402 events. 380/1402 cut-off events. For 11/27 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9801 event pairs, 110 based on Foata normal form. 2/1145 useless extension candidates. Maximal degree in co-relation 2001. Up to 576 conditions per place. [2023-11-06 22:12:37,945 INFO L140 encePairwiseOnDemand]: 639/643 looper letters, 39 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-11-06 22:12:37,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 122 transitions, 330 flow [2023-11-06 22:12:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:12:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1066 transitions. [2023-11-06 22:12:37,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526179367547952 [2023-11-06 22:12:37,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1066 transitions. [2023-11-06 22:12:37,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1066 transitions. [2023-11-06 22:12:37,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:37,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1066 transitions. [2023-11-06 22:12:37,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.3333333333333) internal successors, (1066), 3 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,965 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 237 flow. Second operand 3 states and 1066 transitions. [2023-11-06 22:12:37,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 122 transitions, 330 flow [2023-11-06 22:12:37,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 122 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:12:37,974 INFO L231 Difference]: Finished difference. Result has 114 places, 117 transitions, 247 flow [2023-11-06 22:12:37,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=114, PETRI_TRANSITIONS=117} [2023-11-06 22:12:37,975 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -13 predicate places. [2023-11-06 22:12:37,976 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 117 transitions, 247 flow [2023-11-06 22:12:37,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:37,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:37,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:37,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:12:37,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:37,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash -313224438, now seen corresponding path program 1 times [2023-11-06 22:12:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:37,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647511458] [2023-11-06 22:12:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:37,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:38,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647511458] [2023-11-06 22:12:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647511458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:38,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:38,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353205477] [2023-11-06 22:12:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:38,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:38,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:38,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:38,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 643 [2023-11-06 22:12:38,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:38,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 643 [2023-11-06 22:12:38,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:38,384 INFO L124 PetriNetUnfolderBase]: 438/1829 cut-off events. [2023-11-06 22:12:38,385 INFO L125 PetriNetUnfolderBase]: For 30/75 co-relation queries the response was YES. [2023-11-06 22:12:38,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2573 conditions, 1829 events. 438/1829 cut-off events. For 30/75 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13147 event pairs, 132 based on Foata normal form. 1/1460 useless extension candidates. Maximal degree in co-relation 2569. Up to 660 conditions per place. [2023-11-06 22:12:38,401 INFO L140 encePairwiseOnDemand]: 639/643 looper letters, 41 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-11-06 22:12:38,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 122 transitions, 347 flow [2023-11-06 22:12:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:12:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2023-11-06 22:12:38,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531363400725765 [2023-11-06 22:12:38,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1067 transitions. [2023-11-06 22:12:38,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1067 transitions. [2023-11-06 22:12:38,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:38,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1067 transitions. [2023-11-06 22:12:38,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.6666666666667) internal successors, (1067), 3 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,417 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 247 flow. Second operand 3 states and 1067 transitions. [2023-11-06 22:12:38,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 122 transitions, 347 flow [2023-11-06 22:12:38,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 122 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:12:38,422 INFO L231 Difference]: Finished difference. Result has 115 places, 117 transitions, 257 flow [2023-11-06 22:12:38,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=115, PETRI_TRANSITIONS=117} [2023-11-06 22:12:38,423 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -12 predicate places. [2023-11-06 22:12:38,423 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 117 transitions, 257 flow [2023-11-06 22:12:38,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:38,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:38,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:12:38,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:38,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash -360941780, now seen corresponding path program 1 times [2023-11-06 22:12:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:38,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429721175] [2023-11-06 22:12:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:12:38,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:38,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429721175] [2023-11-06 22:12:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429721175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:38,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:38,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839728469] [2023-11-06 22:12:38,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:38,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:38,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:38,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 643 [2023-11-06 22:12:38,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 117 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:38,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 643 [2023-11-06 22:12:38,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:38,940 INFO L124 PetriNetUnfolderBase]: 364/1317 cut-off events. [2023-11-06 22:12:38,941 INFO L125 PetriNetUnfolderBase]: For 57/63 co-relation queries the response was YES. [2023-11-06 22:12:38,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1985 conditions, 1317 events. 364/1317 cut-off events. For 57/63 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9030 event pairs, 206 based on Foata normal form. 0/1068 useless extension candidates. Maximal degree in co-relation 1980. Up to 559 conditions per place. [2023-11-06 22:12:38,956 INFO L140 encePairwiseOnDemand]: 638/643 looper letters, 33 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2023-11-06 22:12:38,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 119 transitions, 335 flow [2023-11-06 22:12:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:12:38,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1045 transitions. [2023-11-06 22:12:38,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5417314670813893 [2023-11-06 22:12:38,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1045 transitions. [2023-11-06 22:12:38,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1045 transitions. [2023-11-06 22:12:38,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:38,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1045 transitions. [2023-11-06 22:12:38,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,976 INFO L175 Difference]: Start difference. First operand has 115 places, 117 transitions, 257 flow. Second operand 3 states and 1045 transitions. [2023-11-06 22:12:38,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 119 transitions, 335 flow [2023-11-06 22:12:38,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 119 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:12:38,981 INFO L231 Difference]: Finished difference. Result has 118 places, 119 transitions, 279 flow [2023-11-06 22:12:38,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=118, PETRI_TRANSITIONS=119} [2023-11-06 22:12:38,982 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -9 predicate places. [2023-11-06 22:12:38,983 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 119 transitions, 279 flow [2023-11-06 22:12:38,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:38,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:38,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:38,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:12:38,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:38,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:38,985 INFO L85 PathProgramCache]: Analyzing trace with hash -812983296, now seen corresponding path program 1 times [2023-11-06 22:12:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:38,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525445598] [2023-11-06 22:12:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:12:39,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525445598] [2023-11-06 22:12:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525445598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:39,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578896723] [2023-11-06 22:12:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:39,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:39,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:39,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:39,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 643 [2023-11-06 22:12:39,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 119 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:39,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:39,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 643 [2023-11-06 22:12:39,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:39,438 INFO L124 PetriNetUnfolderBase]: 611/2238 cut-off events. [2023-11-06 22:12:39,438 INFO L125 PetriNetUnfolderBase]: For 84/92 co-relation queries the response was YES. [2023-11-06 22:12:39,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3353 conditions, 2238 events. 611/2238 cut-off events. For 84/92 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 16539 event pairs, 123 based on Foata normal form. 1/1913 useless extension candidates. Maximal degree in co-relation 3346. Up to 822 conditions per place. [2023-11-06 22:12:39,457 INFO L140 encePairwiseOnDemand]: 637/643 looper letters, 55 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-11-06 22:12:39,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 130 transitions, 421 flow [2023-11-06 22:12:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:12:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2023-11-06 22:12:39,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5505443234836703 [2023-11-06 22:12:39,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2023-11-06 22:12:39,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2023-11-06 22:12:39,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:39,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2023-11-06 22:12:39,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:39,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:39,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:39,474 INFO L175 Difference]: Start difference. First operand has 118 places, 119 transitions, 279 flow. Second operand 3 states and 1062 transitions. [2023-11-06 22:12:39,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 130 transitions, 421 flow [2023-11-06 22:12:39,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:12:39,478 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 281 flow [2023-11-06 22:12:39,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-11-06 22:12:39,480 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-11-06 22:12:39,480 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 281 flow [2023-11-06 22:12:39,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:39,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:39,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:39,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:12:39,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:39,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:39,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1804526793, now seen corresponding path program 1 times [2023-11-06 22:12:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:39,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235590533] [2023-11-06 22:12:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:12:39,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:39,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235590533] [2023-11-06 22:12:39,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235590533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:39,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868070684] [2023-11-06 22:12:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:39,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:39,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:39,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:39,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:12:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:39,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:12:39,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:12:39,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:12:39,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868070684] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:39,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:39,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-06 22:12:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888516979] [2023-11-06 22:12:39,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:12:39,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:12:39,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:12:40,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 643 [2023-11-06 22:12:40,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 281 flow. Second operand has 8 states, 8 states have (on average 333.875) internal successors, (2671), 8 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:40,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:40,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 643 [2023-11-06 22:12:40,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:40,441 INFO L124 PetriNetUnfolderBase]: 436/1494 cut-off events. [2023-11-06 22:12:40,441 INFO L125 PetriNetUnfolderBase]: For 112/120 co-relation queries the response was YES. [2023-11-06 22:12:40,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2408 conditions, 1494 events. 436/1494 cut-off events. For 112/120 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10355 event pairs, 240 based on Foata normal form. 0/1238 useless extension candidates. Maximal degree in co-relation 2401. Up to 680 conditions per place. [2023-11-06 22:12:40,459 INFO L140 encePairwiseOnDemand]: 638/643 looper letters, 34 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2023-11-06 22:12:40,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 393 flow [2023-11-06 22:12:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2039 transitions. [2023-11-06 22:12:40,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5285121824779678 [2023-11-06 22:12:40,469 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2039 transitions. [2023-11-06 22:12:40,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2039 transitions. [2023-11-06 22:12:40,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:40,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2039 transitions. [2023-11-06 22:12:40,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:40,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:40,491 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:40,492 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 281 flow. Second operand 6 states and 2039 transitions. [2023-11-06 22:12:40,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 393 flow [2023-11-06 22:12:40,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:12:40,497 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 347 flow [2023-11-06 22:12:40,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2023-11-06 22:12:40,498 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-11-06 22:12:40,499 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 347 flow [2023-11-06 22:12:40,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 333.875) internal successors, (2671), 8 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:40,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:40,501 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:40,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:40,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:40,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:40,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash -29522147, now seen corresponding path program 2 times [2023-11-06 22:12:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041334260] [2023-11-06 22:12:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:40,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:12:40,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:40,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041334260] [2023-11-06 22:12:40,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041334260] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:40,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470831074] [2023-11-06 22:12:40,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:12:40,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:40,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:41,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:12:41,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:12:41,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:12:41,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-06 22:12:41,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:41,213 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:12:41,245 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 22:12:41,288 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:12:41,288 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 22:12:41,343 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:12:41,344 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 22:12:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:12:41,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:12:41,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470831074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:41,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:12:41,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-11-06 22:12:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91633656] [2023-11-06 22:12:41,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:41,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:12:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:41,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:12:41,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:12:42,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 643 [2023-11-06 22:12:42,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 331.85714285714283) internal successors, (2323), 7 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:42,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:42,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 643 [2023-11-06 22:12:42,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:42,851 INFO L124 PetriNetUnfolderBase]: 1672/3749 cut-off events. [2023-11-06 22:12:42,851 INFO L125 PetriNetUnfolderBase]: For 368/368 co-relation queries the response was YES. [2023-11-06 22:12:42,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6792 conditions, 3749 events. 1672/3749 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27028 event pairs, 78 based on Foata normal form. 0/3138 useless extension candidates. Maximal degree in co-relation 6781. Up to 949 conditions per place. [2023-11-06 22:12:42,894 INFO L140 encePairwiseOnDemand]: 637/643 looper letters, 143 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2023-11-06 22:12:42,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 222 transitions, 901 flow [2023-11-06 22:12:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:12:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:12:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2436 transitions. [2023-11-06 22:12:42,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5412130637636081 [2023-11-06 22:12:42,905 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2436 transitions. [2023-11-06 22:12:42,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2436 transitions. [2023-11-06 22:12:42,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:42,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2436 transitions. [2023-11-06 22:12:42,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 348.0) internal successors, (2436), 7 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:42,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 643.0) internal successors, (5144), 8 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:42,927 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 643.0) internal successors, (5144), 8 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:42,928 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 347 flow. Second operand 7 states and 2436 transitions. [2023-11-06 22:12:42,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 222 transitions, 901 flow [2023-11-06 22:12:42,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 222 transitions, 885 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:12:42,938 INFO L231 Difference]: Finished difference. Result has 128 places, 122 transitions, 339 flow [2023-11-06 22:12:42,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=339, PETRI_PLACES=128, PETRI_TRANSITIONS=122} [2023-11-06 22:12:42,939 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-11-06 22:12:42,940 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 339 flow [2023-11-06 22:12:42,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 331.85714285714283) internal successors, (2323), 7 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:42,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:42,941 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:42,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:43,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:43,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:43,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:43,148 INFO L85 PathProgramCache]: Analyzing trace with hash -717127390, now seen corresponding path program 1 times [2023-11-06 22:12:43,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:43,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131713670] [2023-11-06 22:12:43,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:12:43,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:43,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131713670] [2023-11-06 22:12:43,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131713670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:43,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:43,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:12:43,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122673075] [2023-11-06 22:12:43,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:43,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:12:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:43,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:12:43,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:12:43,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 643 [2023-11-06 22:12:43,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:43,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:43,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 643 [2023-11-06 22:12:43,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:43,651 INFO L124 PetriNetUnfolderBase]: 793/2461 cut-off events. [2023-11-06 22:12:43,651 INFO L125 PetriNetUnfolderBase]: For 348/354 co-relation queries the response was YES. [2023-11-06 22:12:43,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4229 conditions, 2461 events. 793/2461 cut-off events. For 348/354 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 17687 event pairs, 178 based on Foata normal form. 0/2186 useless extension candidates. Maximal degree in co-relation 4217. Up to 1109 conditions per place. [2023-11-06 22:12:43,675 INFO L140 encePairwiseOnDemand]: 637/643 looper letters, 65 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-11-06 22:12:43,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 506 flow [2023-11-06 22:12:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:12:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:12:43,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1065 transitions. [2023-11-06 22:12:43,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.552099533437014 [2023-11-06 22:12:43,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1065 transitions. [2023-11-06 22:12:43,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1065 transitions. [2023-11-06 22:12:43,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:43,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1065 transitions. [2023-11-06 22:12:43,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:43,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:43,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:43,690 INFO L175 Difference]: Start difference. First operand has 128 places, 122 transitions, 339 flow. Second operand 3 states and 1065 transitions. [2023-11-06 22:12:43,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 506 flow [2023-11-06 22:12:43,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 133 transitions, 495 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:12:43,695 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 336 flow [2023-11-06 22:12:43,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2023-11-06 22:12:43,696 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-11-06 22:12:43,696 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 336 flow [2023-11-06 22:12:43,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:43,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:43,697 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:43,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:12:43,697 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:43,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:43,698 INFO L85 PathProgramCache]: Analyzing trace with hash 867738896, now seen corresponding path program 1 times [2023-11-06 22:12:43,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:43,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764348158] [2023-11-06 22:12:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:12:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764348158] [2023-11-06 22:12:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764348158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:12:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447914347] [2023-11-06 22:12:43,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:43,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:12:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:12:43,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:12:43,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:12:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:44,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:12:44,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:12:44,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:12:44,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:12:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:12:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447914347] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:12:44,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:12:44,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-06 22:12:44,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757919823] [2023-11-06 22:12:44,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:12:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:12:44,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:12:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:12:44,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 643 [2023-11-06 22:12:44,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 336 flow. Second operand has 12 states, 12 states have (on average 333.5) internal successors, (4002), 12 states have internal predecessors, (4002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:44,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:44,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 643 [2023-11-06 22:12:44,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:44,914 INFO L124 PetriNetUnfolderBase]: 475/1608 cut-off events. [2023-11-06 22:12:44,914 INFO L125 PetriNetUnfolderBase]: For 120/128 co-relation queries the response was YES. [2023-11-06 22:12:44,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 1608 events. 475/1608 cut-off events. For 120/128 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 11300 event pairs, 250 based on Foata normal form. 1/1375 useless extension candidates. Maximal degree in co-relation 2646. Up to 724 conditions per place. [2023-11-06 22:12:44,929 INFO L140 encePairwiseOnDemand]: 638/643 looper letters, 34 selfloop transitions, 12 changer transitions 0/122 dead transitions. [2023-11-06 22:12:44,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 440 flow [2023-11-06 22:12:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:12:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:12:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2369 transitions. [2023-11-06 22:12:44,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263274827816041 [2023-11-06 22:12:44,939 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2369 transitions. [2023-11-06 22:12:44,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2369 transitions. [2023-11-06 22:12:44,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:44,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2369 transitions. [2023-11-06 22:12:44,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.42857142857144) internal successors, (2369), 7 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:44,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 643.0) internal successors, (5144), 8 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:44,957 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 643.0) internal successors, (5144), 8 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:44,957 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 336 flow. Second operand 7 states and 2369 transitions. [2023-11-06 22:12:44,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 440 flow [2023-11-06 22:12:44,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 122 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:12:44,961 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 382 flow [2023-11-06 22:12:44,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-11-06 22:12:44,963 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-11-06 22:12:44,963 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 382 flow [2023-11-06 22:12:44,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 333.5) internal successors, (4002), 12 states have internal predecessors, (4002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:44,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:44,965 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:44,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:12:45,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:12:45,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:45,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1930710812, now seen corresponding path program 2 times [2023-11-06 22:12:45,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709093540] [2023-11-06 22:12:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:12:45,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:45,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709093540] [2023-11-06 22:12:45,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709093540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:45,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:45,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:45,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552657356] [2023-11-06 22:12:45,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:45,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:45,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:45,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:45,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:46,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 643 [2023-11-06 22:12:46,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:46,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:46,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 643 [2023-11-06 22:12:46,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:47,261 INFO L124 PetriNetUnfolderBase]: 973/2680 cut-off events. [2023-11-06 22:12:47,262 INFO L125 PetriNetUnfolderBase]: For 154/160 co-relation queries the response was YES. [2023-11-06 22:12:47,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4679 conditions, 2680 events. 973/2680 cut-off events. For 154/160 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 19385 event pairs, 185 based on Foata normal form. 0/2408 useless extension candidates. Maximal degree in co-relation 4665. Up to 784 conditions per place. [2023-11-06 22:12:47,286 INFO L140 encePairwiseOnDemand]: 636/643 looper letters, 117 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-11-06 22:12:47,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 186 transitions, 767 flow [2023-11-06 22:12:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2023-11-06 22:12:47,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5326594090202177 [2023-11-06 22:12:47,294 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2023-11-06 22:12:47,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2023-11-06 22:12:47,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:47,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2023-11-06 22:12:47,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:47,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:47,310 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:47,310 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 382 flow. Second operand 6 states and 2055 transitions. [2023-11-06 22:12:47,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 186 transitions, 767 flow [2023-11-06 22:12:47,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 186 transitions, 743 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-06 22:12:47,316 INFO L231 Difference]: Finished difference. Result has 128 places, 120 transitions, 364 flow [2023-11-06 22:12:47,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=128, PETRI_TRANSITIONS=120} [2023-11-06 22:12:47,317 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-11-06 22:12:47,317 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 120 transitions, 364 flow [2023-11-06 22:12:47,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:47,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:47,318 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:47,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:12:47,319 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:47,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1375828592, now seen corresponding path program 1 times [2023-11-06 22:12:47,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:47,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68428334] [2023-11-06 22:12:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:47,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:47,929 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:12:47,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:47,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68428334] [2023-11-06 22:12:47,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68428334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:47,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:47,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:47,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004464430] [2023-11-06 22:12:47,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:47,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:47,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:47,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:47,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:48,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 643 [2023-11-06 22:12:48,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 326.6666666666667) internal successors, (1960), 6 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:48,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:48,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 643 [2023-11-06 22:12:48,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:49,096 INFO L124 PetriNetUnfolderBase]: 822/2097 cut-off events. [2023-11-06 22:12:49,096 INFO L125 PetriNetUnfolderBase]: For 248/260 co-relation queries the response was YES. [2023-11-06 22:12:49,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3933 conditions, 2097 events. 822/2097 cut-off events. For 248/260 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14275 event pairs, 155 based on Foata normal form. 0/1937 useless extension candidates. Maximal degree in co-relation 3918. Up to 670 conditions per place. [2023-11-06 22:12:49,116 INFO L140 encePairwiseOnDemand]: 636/643 looper letters, 101 selfloop transitions, 5 changer transitions 0/170 dead transitions. [2023-11-06 22:12:49,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 170 transitions, 716 flow [2023-11-06 22:12:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2035 transitions. [2023-11-06 22:12:49,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274753758424053 [2023-11-06 22:12:49,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2035 transitions. [2023-11-06 22:12:49,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2035 transitions. [2023-11-06 22:12:49,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:49,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2035 transitions. [2023-11-06 22:12:49,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.1666666666667) internal successors, (2035), 6 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:49,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:49,139 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:49,139 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 364 flow. Second operand 6 states and 2035 transitions. [2023-11-06 22:12:49,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 170 transitions, 716 flow [2023-11-06 22:12:49,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 170 transitions, 698 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:12:49,146 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 360 flow [2023-11-06 22:12:49,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2023-11-06 22:12:49,147 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-11-06 22:12:49,147 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 360 flow [2023-11-06 22:12:49,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.6666666666667) internal successors, (1960), 6 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:49,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:49,148 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:49,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:12:49,148 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:49,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:49,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2092907236, now seen corresponding path program 1 times [2023-11-06 22:12:49,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:49,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920821970] [2023-11-06 22:12:49,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:49,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:12:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920821970] [2023-11-06 22:12:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920821970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:49,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:49,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:49,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57865290] [2023-11-06 22:12:49,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:49,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:49,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:50,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 643 [2023-11-06 22:12:50,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:50,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:50,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 643 [2023-11-06 22:12:50,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:50,908 INFO L124 PetriNetUnfolderBase]: 562/1648 cut-off events. [2023-11-06 22:12:50,908 INFO L125 PetriNetUnfolderBase]: For 174/182 co-relation queries the response was YES. [2023-11-06 22:12:50,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3014 conditions, 1648 events. 562/1648 cut-off events. For 174/182 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11358 event pairs, 253 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 2999. Up to 723 conditions per place. [2023-11-06 22:12:50,920 INFO L140 encePairwiseOnDemand]: 638/643 looper letters, 90 selfloop transitions, 4 changer transitions 8/169 dead transitions. [2023-11-06 22:12:50,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 169 transitions, 690 flow [2023-11-06 22:12:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2070 transitions. [2023-11-06 22:12:50,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536547433903577 [2023-11-06 22:12:50,953 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2070 transitions. [2023-11-06 22:12:50,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2070 transitions. [2023-11-06 22:12:50,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:50,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2070 transitions. [2023-11-06 22:12:50,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 345.0) internal successors, (2070), 6 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:50,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:50,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:50,977 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 360 flow. Second operand 6 states and 2070 transitions. [2023-11-06 22:12:50,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 169 transitions, 690 flow [2023-11-06 22:12:50,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 169 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:12:50,983 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 356 flow [2023-11-06 22:12:50,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2023-11-06 22:12:50,986 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2023-11-06 22:12:50,986 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 356 flow [2023-11-06 22:12:50,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:50,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:50,987 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:50,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:12:50,987 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:50,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:50,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2022671125, now seen corresponding path program 1 times [2023-11-06 22:12:50,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:50,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336157006] [2023-11-06 22:12:50,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:50,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:12:51,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:51,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336157006] [2023-11-06 22:12:51,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336157006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:51,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:51,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:51,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778414028] [2023-11-06 22:12:51,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:51,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:51,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:51,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:51,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:52,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 643 [2023-11-06 22:12:52,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 356 flow. Second operand has 6 states, 6 states have (on average 326.8333333333333) internal successors, (1961), 6 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:52,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:52,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 643 [2023-11-06 22:12:52,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:52,735 INFO L124 PetriNetUnfolderBase]: 675/1721 cut-off events. [2023-11-06 22:12:52,736 INFO L125 PetriNetUnfolderBase]: For 179/187 co-relation queries the response was YES. [2023-11-06 22:12:52,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3204 conditions, 1721 events. 675/1721 cut-off events. For 179/187 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11435 event pairs, 165 based on Foata normal form. 0/1551 useless extension candidates. Maximal degree in co-relation 3189. Up to 483 conditions per place. [2023-11-06 22:12:52,753 INFO L140 encePairwiseOnDemand]: 636/643 looper letters, 96 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2023-11-06 22:12:52,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 163 transitions, 678 flow [2023-11-06 22:12:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:52,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2034 transitions. [2023-11-06 22:12:52,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5272161741835147 [2023-11-06 22:12:52,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2034 transitions. [2023-11-06 22:12:52,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2034 transitions. [2023-11-06 22:12:52,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:52,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2034 transitions. [2023-11-06 22:12:52,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.0) internal successors, (2034), 6 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:52,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:52,778 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:52,778 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 356 flow. Second operand 6 states and 2034 transitions. [2023-11-06 22:12:52,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 163 transitions, 678 flow [2023-11-06 22:12:52,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 163 transitions, 663 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:12:52,783 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 355 flow [2023-11-06 22:12:52,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2023-11-06 22:12:52,786 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-11-06 22:12:52,786 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 355 flow [2023-11-06 22:12:52,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.8333333333333) internal successors, (1961), 6 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:52,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:12:52,787 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:52,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:12:52,787 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-06 22:12:52,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:12:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1996539254, now seen corresponding path program 1 times [2023-11-06 22:12:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:12:52,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512300472] [2023-11-06 22:12:52,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:12:52,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:12:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:12:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:12:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:12:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512300472] [2023-11-06 22:12:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512300472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:12:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:12:53,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:12:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580893604] [2023-11-06 22:12:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:12:53,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:12:53,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:12:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:12:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:12:54,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 643 [2023-11-06 22:12:54,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:54,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:12:54,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 643 [2023-11-06 22:12:54,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:12:54,716 INFO L124 PetriNetUnfolderBase]: 883/2334 cut-off events. [2023-11-06 22:12:54,716 INFO L125 PetriNetUnfolderBase]: For 219/225 co-relation queries the response was YES. [2023-11-06 22:12:54,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4290 conditions, 2334 events. 883/2334 cut-off events. For 219/225 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 16002 event pairs, 196 based on Foata normal form. 0/2160 useless extension candidates. Maximal degree in co-relation 4275. Up to 701 conditions per place. [2023-11-06 22:12:54,729 INFO L140 encePairwiseOnDemand]: 636/643 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2023-11-06 22:12:54,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 179 transitions, 754 flow [2023-11-06 22:12:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:12:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:12:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2054 transitions. [2023-11-06 22:12:54,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5324002073613271 [2023-11-06 22:12:54,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2054 transitions. [2023-11-06 22:12:54,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2054 transitions. [2023-11-06 22:12:54,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:12:54,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2054 transitions. [2023-11-06 22:12:54,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.3333333333333) internal successors, (2054), 6 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:54,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:54,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:54,756 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 355 flow. Second operand 6 states and 2054 transitions. [2023-11-06 22:12:54,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 179 transitions, 754 flow [2023-11-06 22:12:54,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 179 transitions, 728 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:12:54,761 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2023-11-06 22:12:54,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2023-11-06 22:12:54,762 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-11-06 22:12:54,762 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2023-11-06 22:12:54,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:12:54,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-11-06 22:12:54,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-11-06 22:12:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-11-06 22:12:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-11-06 22:12:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-11-06 22:12:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-11-06 22:12:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-11-06 22:12:54,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-11-06 22:12:54,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-11-06 22:12:54,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-11-06 22:12:54,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-11-06 22:12:54,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-11-06 22:12:54,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-11-06 22:12:54,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-11-06 22:12:54,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-11-06 22:12:54,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-11-06 22:12:54,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-11-06 22:12:54,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-11-06 22:12:54,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-11-06 22:12:54,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-11-06 22:12:54,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-11-06 22:12:54,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-11-06 22:12:54,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-11-06 22:12:54,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-11-06 22:12:54,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-11-06 22:12:54,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-11-06 22:12:54,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-11-06 22:12:54,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-11-06 22:12:54,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-11-06 22:12:54,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-11-06 22:12:54,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-11-06 22:12:54,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:12:54,779 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:12:54,786 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:12:54,786 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:12:54,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:12:54 BasicIcfg [2023-11-06 22:12:54,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:12:54,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:12:54,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:12:54,791 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:12:54,792 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:24" (3/4) ... [2023-11-06 22:12:54,795 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:12:54,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:12:54,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:12:54,809 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 22:12:54,809 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:12:54,810 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:12:54,810 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:12:54,890 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:12:54,891 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:12:54,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:12:54,892 INFO L158 Benchmark]: Toolchain (without parser) took 32153.69ms. Allocated memory was 186.6MB in the beginning and 408.9MB in the end (delta: 222.3MB). Free memory was 156.0MB in the beginning and 211.4MB in the end (delta: -55.4MB). Peak memory consumption was 168.8MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,892 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:12:54,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.73ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 143.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.02ms. Allocated memory is still 186.6MB. Free memory was 143.2MB in the beginning and 139.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,893 INFO L158 Benchmark]: Boogie Preprocessor took 70.86ms. Allocated memory is still 186.6MB. Free memory was 139.8MB in the beginning and 136.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,894 INFO L158 Benchmark]: RCFGBuilder took 1167.69ms. Allocated memory is still 186.6MB. Free memory was 136.9MB in the beginning and 105.8MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,894 INFO L158 Benchmark]: TraceAbstraction took 30318.32ms. Allocated memory was 186.6MB in the beginning and 408.9MB in the end (delta: 222.3MB). Free memory was 105.0MB in the beginning and 215.6MB in the end (delta: -110.6MB). Peak memory consumption was 200.2MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,895 INFO L158 Benchmark]: Witness Printer took 100.85ms. Allocated memory is still 408.9MB. Free memory was 215.6MB in the beginning and 211.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:12:54,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.73ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 143.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.02ms. Allocated memory is still 186.6MB. Free memory was 143.2MB in the beginning and 139.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.86ms. Allocated memory is still 186.6MB. Free memory was 139.8MB in the beginning and 136.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1167.69ms. Allocated memory is still 186.6MB. Free memory was 136.9MB in the beginning and 105.8MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30318.32ms. Allocated memory was 186.6MB in the beginning and 408.9MB in the end (delta: 222.3MB). Free memory was 105.0MB in the beginning and 215.6MB in the end (delta: -110.6MB). Peak memory consumption was 200.2MB. Max. memory is 16.1GB. * Witness Printer took 100.85ms. Allocated memory is still 408.9MB. Free memory was 215.6MB in the beginning and 211.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 330 PlacesBefore, 127 PlacesAfterwards, 341 TransitionsBefore, 131 TransitionsAfterwards, 18860 CoEnabledTransitionPairs, 7 FixpointIterations, 151 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 22 ConcurrentYvCompositions, 7 ChoiceCompositions, 279 TotalNumberOfCompositions, 121190 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27165, independent: 25599, independent conditional: 0, independent unconditional: 25599, dependent: 1566, dependent conditional: 0, dependent unconditional: 1566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8525, independent: 8372, independent conditional: 0, independent unconditional: 8372, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27165, independent: 17227, independent conditional: 0, independent unconditional: 17227, dependent: 1413, dependent conditional: 0, dependent unconditional: 1413, unknown: 8525, unknown conditional: 0, unknown unconditional: 8525] , Statistics on independence cache: Total cache size (in pairs): 1401, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 504 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 29.9s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2662 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1621 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 1066 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5912 IncrementalHoareTripleChecker+Invalid, 6978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1066 mSolverCounterUnsat, 80 mSDtfsCounter, 5912 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 2 NumberOfNonLiveVariables, 643 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 235/278 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:12:54,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a4b87a-e25f-4691-95bd-c3d06bf24f44/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE