./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c66e95d4d33d89eed9ab2f285249dafeef639a3ca9f6d879b87b944d1b8c0ce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:47,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:48,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:22:48,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:48,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:48,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:48,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:48,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:48,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:22:48,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:22:48,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:48,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:48,089 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:48,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:48,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:22:48,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:48,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:22:48,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:48,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:48,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:22:48,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:22:48,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:22:48,095 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:22:48,096 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:22:48,096 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:48,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:48,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:48,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:48,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:48,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:22:48,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:48,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:48,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:22:48,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:22:48,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:22:48,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:22:48,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:22:48,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:22:48,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:22:48,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:22:48,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:22:48,103 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_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c66e95d4d33d89eed9ab2f285249dafeef639a3ca9f6d879b87b944d1b8c0ce [2023-11-21 22:22:48,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:48,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:48,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:48,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:48,424 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:48,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2023-11-21 22:22:51,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:51,933 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:51,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2023-11-21 22:22:51,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/data/30141cdd0/738ea39f949142158568df2b528e5e3f/FLAG77f548ff8 [2023-11-21 22:22:51,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/data/30141cdd0/738ea39f949142158568df2b528e5e3f [2023-11-21 22:22:51,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:51,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:51,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:51,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:51,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:51,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:51" (1/1) ... [2023-11-21 22:22:51,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6726c22f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:51, skipping insertion in model container [2023-11-21 22:22:51,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:51" (1/1) ... [2023-11-21 22:22:52,009 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:52,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:52,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:52,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:52,242 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:22:52,243 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:22:52,251 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:52,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52 WrapperNode [2023-11-21 22:22:52,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:52,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:52,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:52,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:52,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,302 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 123 [2023-11-21 22:22:52,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:52,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:52,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:52,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:52,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:52,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:52,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:52,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:52,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (1/1) ... [2023-11-21 22:22:52,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:22:52,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:52,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:52,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:22:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:22:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:22:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:22:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:22:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:22:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:22:52,429 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:22:52,525 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:52,528 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:52,871 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:52,958 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:52,958 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:22:52,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:52 BoogieIcfgContainer [2023-11-21 22:22:52,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:52,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:22:52,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:22:52,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:22:52,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:22:51" (1/3) ... [2023-11-21 22:22:52,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e2faee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:52, skipping insertion in model container [2023-11-21 22:22:52,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:52" (2/3) ... [2023-11-21 22:22:52,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e2faee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:22:52, skipping insertion in model container [2023-11-21 22:22:52,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:52" (3/3) ... [2023-11-21 22:22:52,968 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1-alt.wvr.c [2023-11-21 22:22:52,978 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:22:52,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:22:52,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-21 22:22:52,991 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:22:53,061 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:22:53,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 146 transitions, 306 flow [2023-11-21 22:22:53,209 INFO L124 PetriNetUnfolderBase]: 7/144 cut-off events. [2023-11-21 22:22:53,210 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:22:53,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 144 events. 7/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-11-21 22:22:53,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 146 transitions, 306 flow [2023-11-21 22:22:53,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 123 transitions, 258 flow [2023-11-21 22:22:53,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:22:53,248 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c7b94d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:22:53,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-21 22:22:53,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:22:53,256 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-21 22:22:53,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:22:53,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:53,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:53,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:53,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1466068369, now seen corresponding path program 1 times [2023-11-21 22:22:53,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:53,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741258580] [2023-11-21 22:22:53,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:53,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:53,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:53,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741258580] [2023-11-21 22:22:53,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741258580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:53,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:53,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:53,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641118834] [2023-11-21 22:22:53,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:53,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:53,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:53,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:53,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:53,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:53,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:53,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:53,703 INFO L124 PetriNetUnfolderBase]: 10/154 cut-off events. [2023-11-21 22:22:53,703 INFO L125 PetriNetUnfolderBase]: For 16/19 co-relation queries the response was YES. [2023-11-21 22:22:53,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 154 events. 10/154 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 271 event pairs, 5 based on Foata normal form. 5/139 useless extension candidates. Maximal degree in co-relation 93. Up to 25 conditions per place. [2023-11-21 22:22:53,711 INFO L140 encePairwiseOnDemand]: 135/146 looper letters, 12 selfloop transitions, 2 changer transitions 1/114 dead transitions. [2023-11-21 22:22:53,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 268 flow [2023-11-21 22:22:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-21 22:22:53,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8744292237442922 [2023-11-21 22:22:53,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-21 22:22:53,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-21 22:22:53,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:53,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-21 22:22:53,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,762 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 258 flow. Second operand 3 states and 383 transitions. [2023-11-21 22:22:53,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 268 flow [2023-11-21 22:22:53,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:22:53,776 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 234 flow [2023-11-21 22:22:53,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2023-11-21 22:22:53,785 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -8 predicate places. [2023-11-21 22:22:53,786 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 234 flow [2023-11-21 22:22:53,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:53,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:53,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:22:53,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:53,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:53,789 INFO L85 PathProgramCache]: Analyzing trace with hash -61779420, now seen corresponding path program 1 times [2023-11-21 22:22:53,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:53,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474582227] [2023-11-21 22:22:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:53,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:53,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:53,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474582227] [2023-11-21 22:22:53,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474582227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:53,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:53,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:53,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574561025] [2023-11-21 22:22:53,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:53,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:53,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:53,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:53,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:53,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:53,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:53,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:53,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:54,057 INFO L124 PetriNetUnfolderBase]: 10/154 cut-off events. [2023-11-21 22:22:54,058 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:22:54,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 154 events. 10/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 300 event pairs, 5 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 160. Up to 24 conditions per place. [2023-11-21 22:22:54,060 INFO L140 encePairwiseOnDemand]: 143/146 looper letters, 12 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2023-11-21 22:22:54,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 112 transitions, 260 flow [2023-11-21 22:22:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-11-21 22:22:54,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8561643835616438 [2023-11-21 22:22:54,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-11-21 22:22:54,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-11-21 22:22:54,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:54,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-11-21 22:22:54,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,078 INFO L175 Difference]: Start difference. First operand has 116 places, 113 transitions, 234 flow. Second operand 3 states and 375 transitions. [2023-11-21 22:22:54,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 112 transitions, 260 flow [2023-11-21 22:22:54,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:54,085 INFO L231 Difference]: Finished difference. Result has 114 places, 112 transitions, 232 flow [2023-11-21 22:22:54,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=114, PETRI_TRANSITIONS=112} [2023-11-21 22:22:54,087 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -10 predicate places. [2023-11-21 22:22:54,088 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 112 transitions, 232 flow [2023-11-21 22:22:54,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:54,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:54,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:22:54,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:54,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:54,096 INFO L85 PathProgramCache]: Analyzing trace with hash -237274193, now seen corresponding path program 1 times [2023-11-21 22:22:54,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:54,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029723888] [2023-11-21 22:22:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:54,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:54,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029723888] [2023-11-21 22:22:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029723888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:54,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:54,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082868650] [2023-11-21 22:22:54,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:54,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:54,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:54,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:54,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:54,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 112 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:54,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:54,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:54,264 INFO L124 PetriNetUnfolderBase]: 12/149 cut-off events. [2023-11-21 22:22:54,264 INFO L125 PetriNetUnfolderBase]: For 3/7 co-relation queries the response was YES. [2023-11-21 22:22:54,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 149 events. 12/149 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 273 event pairs, 7 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 153. Up to 28 conditions per place. [2023-11-21 22:22:54,266 INFO L140 encePairwiseOnDemand]: 142/146 looper letters, 12 selfloop transitions, 1 changer transitions 0/109 dead transitions. [2023-11-21 22:22:54,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 252 flow [2023-11-21 22:22:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:54,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-11-21 22:22:54,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8584474885844748 [2023-11-21 22:22:54,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-11-21 22:22:54,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-11-21 22:22:54,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:54,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-11-21 22:22:54,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,273 INFO L175 Difference]: Start difference. First operand has 114 places, 112 transitions, 232 flow. Second operand 3 states and 376 transitions. [2023-11-21 22:22:54,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 252 flow [2023-11-21 22:22:54,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:54,277 INFO L231 Difference]: Finished difference. Result has 111 places, 109 transitions, 224 flow [2023-11-21 22:22:54,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=111, PETRI_TRANSITIONS=109} [2023-11-21 22:22:54,279 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -13 predicate places. [2023-11-21 22:22:54,279 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 224 flow [2023-11-21 22:22:54,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:54,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:54,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:22:54,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:54,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1540195981, now seen corresponding path program 1 times [2023-11-21 22:22:54,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:54,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944610831] [2023-11-21 22:22:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:54,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:54,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944610831] [2023-11-21 22:22:54,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944610831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:54,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:54,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:54,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593676682] [2023-11-21 22:22:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:54,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:54,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:54,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:54,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:54,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:54,430 INFO L124 PetriNetUnfolderBase]: 16/214 cut-off events. [2023-11-21 22:22:54,430 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:22:54,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 214 events. 16/214 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 679 event pairs, 2 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 225. Up to 29 conditions per place. [2023-11-21 22:22:54,433 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 14 selfloop transitions, 2 changer transitions 4/111 dead transitions. [2023-11-21 22:22:54,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 265 flow [2023-11-21 22:22:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:54,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-11-21 22:22:54,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.867579908675799 [2023-11-21 22:22:54,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-11-21 22:22:54,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-11-21 22:22:54,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:54,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-11-21 22:22:54,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,442 INFO L175 Difference]: Start difference. First operand has 111 places, 109 transitions, 224 flow. Second operand 3 states and 380 transitions. [2023-11-21 22:22:54,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 111 transitions, 265 flow [2023-11-21 22:22:54,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:22:54,447 INFO L231 Difference]: Finished difference. Result has 110 places, 103 transitions, 219 flow [2023-11-21 22:22:54,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=110, PETRI_TRANSITIONS=103} [2023-11-21 22:22:54,450 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -14 predicate places. [2023-11-21 22:22:54,450 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 103 transitions, 219 flow [2023-11-21 22:22:54,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:54,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:54,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:54,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:22:54,451 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:54,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:54,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1276332029, now seen corresponding path program 1 times [2023-11-21 22:22:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638853184] [2023-11-21 22:22:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638853184] [2023-11-21 22:22:55,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638853184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:55,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:55,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:22:55,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80241079] [2023-11-21 22:22:55,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:55,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:55,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:55,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:55,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 103 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:55,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:55,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:55,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:55,524 INFO L124 PetriNetUnfolderBase]: 45/263 cut-off events. [2023-11-21 22:22:55,524 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:22:55,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 263 events. 45/263 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 974 event pairs, 3 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 332. Up to 33 conditions per place. [2023-11-21 22:22:55,531 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 17 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2023-11-21 22:22:55,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 275 flow [2023-11-21 22:22:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:22:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 742 transitions. [2023-11-21 22:22:55,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8470319634703196 [2023-11-21 22:22:55,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 742 transitions. [2023-11-21 22:22:55,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 742 transitions. [2023-11-21 22:22:55,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:55,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 742 transitions. [2023-11-21 22:22:55,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:55,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:55,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:55,546 INFO L175 Difference]: Start difference. First operand has 110 places, 103 transitions, 219 flow. Second operand 6 states and 742 transitions. [2023-11-21 22:22:55,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 275 flow [2023-11-21 22:22:55,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 110 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:22:55,549 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 225 flow [2023-11-21 22:22:55,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2023-11-21 22:22:55,551 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -14 predicate places. [2023-11-21 22:22:55,551 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 225 flow [2023-11-21 22:22:55,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:55,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:55,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:55,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:22:55,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:55,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1959697197, now seen corresponding path program 1 times [2023-11-21 22:22:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:55,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687289243] [2023-11-21 22:22:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:55,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:56,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687289243] [2023-11-21 22:22:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687289243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:56,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:22:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988637623] [2023-11-21 22:22:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:56,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:56,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-21 22:22:56,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:56,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-21 22:22:56,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:56,433 INFO L124 PetriNetUnfolderBase]: 22/215 cut-off events. [2023-11-21 22:22:56,433 INFO L125 PetriNetUnfolderBase]: For 4/9 co-relation queries the response was YES. [2023-11-21 22:22:56,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 215 events. 22/215 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 633 event pairs, 4 based on Foata normal form. 4/212 useless extension candidates. Maximal degree in co-relation 261. Up to 21 conditions per place. [2023-11-21 22:22:56,435 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 13 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2023-11-21 22:22:56,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 105 transitions, 265 flow [2023-11-21 22:22:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:22:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2023-11-21 22:22:56,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8424657534246576 [2023-11-21 22:22:56,438 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 738 transitions. [2023-11-21 22:22:56,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 738 transitions. [2023-11-21 22:22:56,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:56,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 738 transitions. [2023-11-21 22:22:56,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,447 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,447 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 225 flow. Second operand 6 states and 738 transitions. [2023-11-21 22:22:56,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 105 transitions, 265 flow [2023-11-21 22:22:56,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 105 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:22:56,451 INFO L231 Difference]: Finished difference. Result has 110 places, 101 transitions, 224 flow [2023-11-21 22:22:56,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=101} [2023-11-21 22:22:56,455 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -14 predicate places. [2023-11-21 22:22:56,455 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 101 transitions, 224 flow [2023-11-21 22:22:56,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:56,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:56,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:22:56,457 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:22:56,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash 210487790, now seen corresponding path program 1 times [2023-11-21 22:22:56,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:56,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838721887] [2023-11-21 22:22:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:56,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:56,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838721887] [2023-11-21 22:22:56,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838721887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:56,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:56,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:56,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438035540] [2023-11-21 22:22:56,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:56,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:56,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:56,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:56,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 146 [2023-11-21 22:22:56,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 101 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:56,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 146 [2023-11-21 22:22:56,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:56,606 INFO L124 PetriNetUnfolderBase]: 12/199 cut-off events. [2023-11-21 22:22:56,607 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:22:56,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 199 events. 12/199 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 535 event pairs, 4 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 223. Up to 21 conditions per place. [2023-11-21 22:22:56,608 INFO L140 encePairwiseOnDemand]: 144/146 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2023-11-21 22:22:56,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 236 flow [2023-11-21 22:22:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-11-21 22:22:56,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8881278538812786 [2023-11-21 22:22:56,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-11-21 22:22:56,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-11-21 22:22:56,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:56,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-11-21 22:22:56,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,615 INFO L175 Difference]: Start difference. First operand has 110 places, 101 transitions, 224 flow. Second operand 3 states and 389 transitions. [2023-11-21 22:22:56,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 236 flow [2023-11-21 22:22:56,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 229 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:22:56,617 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2023-11-21 22:22:56,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2023-11-21 22:22:56,618 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -17 predicate places. [2023-11-21 22:22:56,618 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2023-11-21 22:22:56,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:56,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-11-21 22:22:56,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-21 22:22:56,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-21 22:22:56,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-21 22:22:56,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-21 22:22:56,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-21 22:22:56,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-21 22:22:56,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-21 22:22:56,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-21 22:22:56,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-21 22:22:56,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-21 22:22:56,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-21 22:22:56,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-21 22:22:56,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-21 22:22:56,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-21 22:22:56,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-21 22:22:56,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2023-11-21 22:22:56,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 25 remaining) [2023-11-21 22:22:56,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-21 22:22:56,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-21 22:22:56,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-21 22:22:56,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-21 22:22:56,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-21 22:22:56,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-21 22:22:56,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-21 22:22:56,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:22:56,629 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:56,636 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:22:56,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:22:56,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:22:56 BasicIcfg [2023-11-21 22:22:56,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:22:56,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:22:56,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:22:56,650 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:22:56,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:52" (3/4) ... [2023-11-21 22:22:56,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:22:56,656 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 22:22:56,656 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 22:22:56,664 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-21 22:22:56,665 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:22:56,665 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:22:56,665 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:22:56,782 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:22:56,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:22:56,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:22:56,786 INFO L158 Benchmark]: Toolchain (without parser) took 4822.29ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 101.9MB in the beginning and 62.0MB in the end (delta: 39.9MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,786 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:56,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.22ms. Allocated memory is still 144.7MB. Free memory was 101.9MB in the beginning and 90.3MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.60ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,787 INFO L158 Benchmark]: Boogie Preprocessor took 35.88ms. Allocated memory is still 144.7MB. Free memory was 88.2MB in the beginning and 86.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,788 INFO L158 Benchmark]: RCFGBuilder took 619.42ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 66.3MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,788 INFO L158 Benchmark]: TraceAbstraction took 3687.68ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 65.1MB in the beginning and 67.3MB in the end (delta: -2.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,788 INFO L158 Benchmark]: Witness Printer took 135.41ms. Allocated memory is still 192.9MB. Free memory was 67.3MB in the beginning and 62.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:22:56,791 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.22ms. Allocated memory is still 144.7MB. Free memory was 101.9MB in the beginning and 90.3MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.60ms. Allocated memory is still 144.7MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.88ms. Allocated memory is still 144.7MB. Free memory was 88.2MB in the beginning and 86.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.42ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 66.3MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3687.68ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 65.1MB in the beginning and 67.3MB in the end (delta: -2.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Witness Printer took 135.41ms. Allocated memory is still 192.9MB. Free memory was 67.3MB in the beginning and 62.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: 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: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: 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: 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: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: 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, 175 locations, 25 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: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 35 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:22:56,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9564a0bc-ef27-4c87-a26b-d196d7c3ff0f/bin/uautomizer-verify-bycVGegfSx/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