./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/03_incdec-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/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_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/03_incdec-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/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_2edc2e2e-d7f6-42cd-8074-da78acee3251/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 7f19dc7b6c5c71a67d9914faaf2a1157355ecf0e14b05edf8c2541b2f25a5ffb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:06:43,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:06:43,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:06:43,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:06:43,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:06:43,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:06:43,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:06:43,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:06:43,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:06:43,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:06:43,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:06:43,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:06:43,837 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:06:43,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:06:43,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:06:43,840 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:06:43,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:06:43,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:06:43,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:06:43,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:06:43,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:06:43,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:06:43,843 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:06:43,843 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:06:43,844 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:06:43,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:06:43,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:06:43,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:06:43,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:06:43,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:06:43,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:06:43,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:06:43,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:06:43,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:06:43,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:06:43,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:06:43,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:06:43,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:06:43,866 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:06:43,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:06:43,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:06:43,867 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_2edc2e2e-d7f6-42cd-8074-da78acee3251/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f19dc7b6c5c71a67d9914faaf2a1157355ecf0e14b05edf8c2541b2f25a5ffb [2023-11-21 22:06:44,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:06:44,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:06:44,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:06:44,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:06:44,175 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:06:44,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-ext/03_incdec-pthread.i [2023-11-21 22:06:47,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:06:47,578 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:06:47,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/sv-benchmarks/c/pthread-ext/03_incdec-pthread.i [2023-11-21 22:06:47,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/data/8e2f36630/e034a2a66f71495cb1f2b4c8718077ea/FLAGae72e970a [2023-11-21 22:06:47,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/data/8e2f36630/e034a2a66f71495cb1f2b4c8718077ea [2023-11-21 22:06:47,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:06:47,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:06:47,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:47,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:06:47,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:06:47,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:47" (1/1) ... [2023-11-21 22:06:47,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9ff53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:47, skipping insertion in model container [2023-11-21 22:06:47,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:47" (1/1) ... [2023-11-21 22:06:47,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:06:48,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:48,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:06:48,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:48,171 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:06:48,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48 WrapperNode [2023-11-21 22:06:48,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:48,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:48,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:06:48,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:06:48,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,225 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 147 [2023-11-21 22:06:48,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:48,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:06:48,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:06:48,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:06:48,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:06:48,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:06:48,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:06:48,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:06:48,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (1/1) ... [2023-11-21 22:06:48,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:06:48,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:06:48,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:06:48,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2edc2e2e-d7f6-42cd-8074-da78acee3251/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:06:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 22:06:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 22:06:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:06:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:06:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:06:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:06:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:06:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:06:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:06:48,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:06:48,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:06:48,356 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 22:06:48,492 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:06:48,494 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:06:48,769 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:06:48,820 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:06:48,820 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:06:48,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:48 BoogieIcfgContainer [2023-11-21 22:06:48,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:06:48,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:06:48,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:06:48,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:06:48,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:06:47" (1/3) ... [2023-11-21 22:06:48,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a32eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:06:48, skipping insertion in model container [2023-11-21 22:06:48,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:48" (2/3) ... [2023-11-21 22:06:48,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a32eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:06:48, skipping insertion in model container [2023-11-21 22:06:48,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:48" (3/3) ... [2023-11-21 22:06:48,832 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec-pthread.i [2023-11-21 22:06:48,841 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:06:48,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:06:48,853 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-21 22:06:48,853 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:06:48,989 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:06:49,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 163 transitions, 330 flow [2023-11-21 22:06:49,104 INFO L124 PetriNetUnfolderBase]: 11/174 cut-off events. [2023-11-21 22:06:49,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:06:49,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 174 events. 11/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 367 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2023-11-21 22:06:49,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 163 transitions, 330 flow [2023-11-21 22:06:49,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 163 transitions, 330 flow [2023-11-21 22:06:49,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:06:49,149 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;@208086ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:06:49,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-21 22:06:49,183 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:06:49,184 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2023-11-21 22:06:49,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:06:49,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:06:49,185 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:06:49,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-21 22:06:49,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash -165606202, now seen corresponding path program 1 times [2023-11-21 22:06:49,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:49,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518827726] [2023-11-21 22:06:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:49,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:49,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:49,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:49,474 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:06:49,475 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-21 22:06:49,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-21 22:06:49,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-21 22:06:49,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-21 22:06:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-21 22:06:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-21 22:06:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-21 22:06:49,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-21 22:06:49,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-21 22:06:49,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-21 22:06:49,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-21 22:06:49,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-21 22:06:49,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-21 22:06:49,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-21 22:06:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-21 22:06:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-21 22:06:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-21 22:06:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-21 22:06:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-21 22:06:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-21 22:06:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-21 22:06:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-21 22:06:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-21 22:06:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-21 22:06:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-21 22:06:49,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:06:49,488 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:06:49,492 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:06:49,492 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:06:49,590 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:06:49,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 293 transitions, 596 flow [2023-11-21 22:06:49,713 INFO L124 PetriNetUnfolderBase]: 21/317 cut-off events. [2023-11-21 22:06:49,714 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:06:49,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 317 events. 21/317 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1136 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 271. Up to 6 conditions per place. [2023-11-21 22:06:49,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 293 transitions, 596 flow [2023-11-21 22:06:49,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 293 transitions, 596 flow [2023-11-21 22:06:49,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:06:49,732 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;@208086ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:06:49,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-21 22:06:49,744 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:06:49,744 INFO L124 PetriNetUnfolderBase]: 3/82 cut-off events. [2023-11-21 22:06:49,745 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:06:49,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:06:49,745 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] [2023-11-21 22:06:49,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:06:49,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash -735629314, now seen corresponding path program 1 times [2023-11-21 22:06:49,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:49,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215023939] [2023-11-21 22:06:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:49,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:49,969 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 22:06:49,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:06:49,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215023939] [2023-11-21 22:06:49,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215023939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:49,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:49,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:06:49,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900897247] [2023-11-21 22:06:49,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:49,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:06:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:06:50,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:06:50,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:06:50,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 293 [2023-11-21 22:06:50,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:50,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:06:50,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 293 [2023-11-21 22:06:50,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:06:51,577 INFO L124 PetriNetUnfolderBase]: 1135/6488 cut-off events. [2023-11-21 22:06:51,577 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-11-21 22:06:51,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8665 conditions, 6488 events. 1135/6488 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 71615 event pairs, 342 based on Foata normal form. 1681/7315 useless extension candidates. Maximal degree in co-relation 2496. Up to 1360 conditions per place. [2023-11-21 22:06:51,649 INFO L140 encePairwiseOnDemand]: 243/293 looper letters, 83 selfloop transitions, 28 changer transitions 0/315 dead transitions. [2023-11-21 22:06:51,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 315 transitions, 867 flow [2023-11-21 22:06:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:06:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:06:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2023-11-21 22:06:51,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9032992036405005 [2023-11-21 22:06:51,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 794 transitions. [2023-11-21 22:06:51,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 794 transitions. [2023-11-21 22:06:51,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:06:51,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 794 transitions. [2023-11-21 22:06:51,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:51,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:51,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:51,696 INFO L175 Difference]: Start difference. First operand has 279 places, 293 transitions, 596 flow. Second operand 3 states and 794 transitions. [2023-11-21 22:06:51,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 315 transitions, 867 flow [2023-11-21 22:06:51,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 315 transitions, 867 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:06:51,711 INFO L231 Difference]: Finished difference. Result has 265 places, 294 transitions, 790 flow [2023-11-21 22:06:51,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=790, PETRI_PLACES=265, PETRI_TRANSITIONS=294} [2023-11-21 22:06:51,718 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, -14 predicate places. [2023-11-21 22:06:51,718 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 294 transitions, 790 flow [2023-11-21 22:06:51,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:51,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:06:51,719 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:06:51,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:06:51,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:06:51,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash 98054253, now seen corresponding path program 1 times [2023-11-21 22:06:51,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:51,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757120325] [2023-11-21 22:06:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:51,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:51,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:51,835 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:06:51,835 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-21 22:06:51,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-21 22:06:51,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-21 22:06:51,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-21 22:06:51,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-21 22:06:51,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-21 22:06:51,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-21 22:06:51,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-21 22:06:51,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-21 22:06:51,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-21 22:06:51,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-21 22:06:51,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-21 22:06:51,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-21 22:06:51,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-21 22:06:51,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-21 22:06:51,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-21 22:06:51,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-21 22:06:51,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-21 22:06:51,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-21 22:06:51,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-21 22:06:51,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-21 22:06:51,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-21 22:06:51,840 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-21 22:06:51,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-21 22:06:51,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-21 22:06:51,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-21 22:06:51,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-21 22:06:51,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-21 22:06:51,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-21 22:06:51,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-21 22:06:51,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-21 22:06:51,842 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-21 22:06:51,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-21 22:06:51,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-21 22:06:51,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-21 22:06:51,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-21 22:06:51,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-21 22:06:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:06:51,844 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:06:51,845 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:06:51,845 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:06:51,948 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:06:51,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 423 transitions, 864 flow [2023-11-21 22:06:52,098 INFO L124 PetriNetUnfolderBase]: 31/460 cut-off events. [2023-11-21 22:06:52,099 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:06:52,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 460 events. 31/460 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2047 event pairs, 0 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 400. Up to 8 conditions per place. [2023-11-21 22:06:52,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 402 places, 423 transitions, 864 flow [2023-11-21 22:06:52,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 423 transitions, 864 flow [2023-11-21 22:06:52,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:06:52,132 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;@208086ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:06:52,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-21 22:06:52,143 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:06:52,143 INFO L124 PetriNetUnfolderBase]: 3/82 cut-off events. [2023-11-21 22:06:52,144 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:06:52,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:06:52,144 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] [2023-11-21 22:06:52,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-21 22:06:52,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1268972796, now seen corresponding path program 1 times [2023-11-21 22:06:52,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:52,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723012657] [2023-11-21 22:06:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:52,265 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 22:06:52,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:06:52,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723012657] [2023-11-21 22:06:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723012657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:52,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:52,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:06:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088837061] [2023-11-21 22:06:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:52,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:06:52,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:06:52,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:06:52,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:06:52,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 423 [2023-11-21 22:06:52,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 423 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:52,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:06:52,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 423 [2023-11-21 22:06:52,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:07:33,605 INFO L124 PetriNetUnfolderBase]: 79749/267096 cut-off events. [2023-11-21 22:07:33,610 INFO L125 PetriNetUnfolderBase]: For 7459/7459 co-relation queries the response was YES. [2023-11-21 22:07:34,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388493 conditions, 267096 events. 79749/267096 cut-off events. For 7459/7459 co-relation queries the response was YES. Maximal size of possible extension queue 7650. Compared 4541279 event pairs, 27730 based on Foata normal form. 72572/301829 useless extension candidates. Maximal degree in co-relation 31205. Up to 75800 conditions per place. [2023-11-21 22:07:36,449 INFO L140 encePairwiseOnDemand]: 349/423 looper letters, 125 selfloop transitions, 42 changer transitions 0/460 dead transitions. [2023-11-21 22:07:36,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 460 transitions, 1284 flow [2023-11-21 22:07:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:07:36,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:07:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2023-11-21 22:07:36,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.900709219858156 [2023-11-21 22:07:36,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2023-11-21 22:07:36,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2023-11-21 22:07:36,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:07:36,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2023-11-21 22:07:36,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:36,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:36,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:36,468 INFO L175 Difference]: Start difference. First operand has 402 places, 423 transitions, 864 flow. Second operand 3 states and 1143 transitions. [2023-11-21 22:07:36,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 460 transitions, 1284 flow [2023-11-21 22:07:36,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 460 transitions, 1280 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-21 22:07:36,492 INFO L231 Difference]: Finished difference. Result has 382 places, 428 transitions, 1160 flow [2023-11-21 22:07:36,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1160, PETRI_PLACES=382, PETRI_TRANSITIONS=428} [2023-11-21 22:07:36,495 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -20 predicate places. [2023-11-21 22:07:36,496 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 428 transitions, 1160 flow [2023-11-21 22:07:36,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:36,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:36,497 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:36,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:07:36,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-21 22:07:36,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:36,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1080219697, now seen corresponding path program 1 times [2023-11-21 22:07:36,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:36,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224194727] [2023-11-21 22:07:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:36,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:36,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:36,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:36,600 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:07:36,600 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-21 22:07:36,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-21 22:07:36,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-21 22:07:36,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-21 22:07:36,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-21 22:07:36,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-21 22:07:36,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-21 22:07:36,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-21 22:07:36,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-21 22:07:36,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-21 22:07:36,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-21 22:07:36,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-21 22:07:36,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-21 22:07:36,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-21 22:07:36,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-21 22:07:36,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-21 22:07:36,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-21 22:07:36,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-21 22:07:36,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-21 22:07:36,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-21 22:07:36,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-21 22:07:36,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-21 22:07:36,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-21 22:07:36,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-21 22:07:36,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-21 22:07:36,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-21 22:07:36,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-21 22:07:36,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-21 22:07:36,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-21 22:07:36,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-21 22:07:36,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-21 22:07:36,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-21 22:07:36,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-21 22:07:36,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-21 22:07:36,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-21 22:07:36,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-21 22:07:36,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-21 22:07:36,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-21 22:07:36,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-21 22:07:36,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-21 22:07:36,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-21 22:07:36,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-21 22:07:36,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-21 22:07:36,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-21 22:07:36,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-21 22:07:36,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-21 22:07:36,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-21 22:07:36,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-21 22:07:36,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-21 22:07:36,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:07:36,613 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:07:36,614 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:07:36,614 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:07:36,722 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:07:36,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 525 places, 553 transitions, 1134 flow [2023-11-21 22:07:36,925 INFO L124 PetriNetUnfolderBase]: 41/603 cut-off events. [2023-11-21 22:07:36,925 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:07:36,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 603 events. 41/603 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3027 event pairs, 0 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 529. Up to 10 conditions per place. [2023-11-21 22:07:36,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 525 places, 553 transitions, 1134 flow [2023-11-21 22:07:36,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 553 transitions, 1134 flow [2023-11-21 22:07:36,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:36,962 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;@208086ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:36,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-21 22:07:36,970 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:36,971 INFO L124 PetriNetUnfolderBase]: 3/82 cut-off events. [2023-11-21 22:07:36,971 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:07:36,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:36,971 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] [2023-11-21 22:07:36,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-21 22:07:36,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1338867251, now seen corresponding path program 1 times [2023-11-21 22:07:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:36,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472627700] [2023-11-21 22:07:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:36,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:37,017 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 22:07:37,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:37,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472627700] [2023-11-21 22:07:37,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472627700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:37,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:37,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:07:37,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58958233] [2023-11-21 22:07:37,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:37,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:07:37,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:37,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:07:37,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:07:37,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 553 [2023-11-21 22:07:37,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 553 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:37,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:37,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 553 [2023-11-21 22:07:37,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand