./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB --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 ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:29:33,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:29:33,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:29:33,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:29:33,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:29:33,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:29:33,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:29:33,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:29:33,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:29:33,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:29:33,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:29:33,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:29:33,416 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:29:33,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:29:33,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:29:33,417 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:29:33,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:29:33,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:29:33,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:29:33,418 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:29:33,419 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:33,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:33,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:29:33,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:33,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:33,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:29:33,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:29:33,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:29:33,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:29:33,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:29:33,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:29:33,422 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2024-11-28 03:29:33,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:29:33,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:29:33,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:29:33,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:29:33,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:29:33,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2024-11-28 03:29:36,668 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad8fe0deb/101d0614f81e4e2aa20e31ecdd7183e5/FLAGef289d687 [2024-11-28 03:29:37,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:29:37,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/sv-benchmarks/c/pthread-ext/13_unverif.i [2024-11-28 03:29:37,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad8fe0deb/101d0614f81e4e2aa20e31ecdd7183e5/FLAGef289d687 [2024-11-28 03:29:37,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/data/ad8fe0deb/101d0614f81e4e2aa20e31ecdd7183e5 [2024-11-28 03:29:37,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:29:37,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:29:37,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:37,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:29:37,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:29:37,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5963f7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37, skipping insertion in model container [2024-11-28 03:29:37,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:29:37,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:37,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:29:37,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:37,676 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:29:37,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37 WrapperNode [2024-11-28 03:29:37,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:37,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:37,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:29:37,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:29:37,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,737 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-28 03:29:37,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:37,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:29:37,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:29:37,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:29:37,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,759 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:29:37,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:29:37,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:29:37,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:29:37,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (1/1) ... [2024-11-28 03:29:37,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:37,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:37,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:29:37,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:29:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 03:29:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 03:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:29:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:29:37,861 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:29:38,003 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:29:38,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:29:38,197 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:29:38,198 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:29:38,291 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:29:38,293 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:29:38,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:38 BoogieIcfgContainer [2024-11-28 03:29:38,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:29:38,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:29:38,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:29:38,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:29:38,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:29:37" (1/3) ... [2024-11-28 03:29:38,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cc7117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:38, skipping insertion in model container [2024-11-28 03:29:38,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:37" (2/3) ... [2024-11-28 03:29:38,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cc7117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:38, skipping insertion in model container [2024-11-28 03:29:38,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:38" (3/3) ... [2024-11-28 03:29:38,306 INFO L128 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2024-11-28 03:29:38,324 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:29:38,325 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13_unverif.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 7 error locations. [2024-11-28 03:29:38,325 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:29:38,392 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:29:38,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 56 transitions, 116 flow [2024-11-28 03:29:38,490 INFO L124 PetriNetUnfolderBase]: 5/64 cut-off events. [2024-11-28 03:29:38,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:29:38,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 5/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2024-11-28 03:29:38,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 56 transitions, 116 flow [2024-11-28 03:29:38,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 56 transitions, 116 flow [2024-11-28 03:29:38,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:29:38,541 INFO L333 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, 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;@2e19ba07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:29:38,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-28 03:29:38,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:29:38,560 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-28 03:29:38,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:29:38,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:38,561 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:38,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:29:38,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:38,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1223165109, now seen corresponding path program 1 times [2024-11-28 03:29:38,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:38,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749311413] [2024-11-28 03:29:38,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:38,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:38,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749311413] [2024-11-28 03:29:38,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749311413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:38,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:38,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:29:38,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005556467] [2024-11-28 03:29:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:38,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:29:38,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:38,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:29:38,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:29:38,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 56 [2024-11-28 03:29:38,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:38,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:38,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 56 [2024-11-28 03:29:38,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:38,893 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-28 03:29:38,894 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:29:38,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 47 events. 1/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 5/46 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2024-11-28 03:29:38,896 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 2 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2024-11-28 03:29:38,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 96 flow [2024-11-28 03:29:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:29:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 03:29:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 101 transitions. [2024-11-28 03:29:38,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017857142857143 [2024-11-28 03:29:38,914 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 116 flow. Second operand 2 states and 101 transitions. [2024-11-28 03:29:38,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 96 flow [2024-11-28 03:29:38,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:38,924 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 92 flow [2024-11-28 03:29:38,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-11-28 03:29:38,933 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -8 predicate places. [2024-11-28 03:29:38,935 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 92 flow [2024-11-28 03:29:38,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:38,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:38,937 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:38,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:29:38,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:29:38,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:38,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1359360519, now seen corresponding path program 1 times [2024-11-28 03:29:38,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:38,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743705442] [2024-11-28 03:29:38,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:38,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:39,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:39,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743705442] [2024-11-28 03:29:39,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743705442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:39,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:39,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:39,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357441750] [2024-11-28 03:29:39,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:39,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:39,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:39,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:39,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:39,037 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 56 [2024-11-28 03:29:39,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:39,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 56 [2024-11-28 03:29:39,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:39,068 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-28 03:29:39,068 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:29:39,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 46 events. 1/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2024-11-28 03:29:39,069 INFO L140 encePairwiseOnDemand]: 54/56 looper letters, 3 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2024-11-28 03:29:39,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 98 flow [2024-11-28 03:29:39,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-28 03:29:39,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2024-11-28 03:29:39,071 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 92 flow. Second operand 3 states and 134 transitions. [2024-11-28 03:29:39,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 98 flow [2024-11-28 03:29:39,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:39,073 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 92 flow [2024-11-28 03:29:39,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2024-11-28 03:29:39,077 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2024-11-28 03:29:39,078 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 92 flow [2024-11-28 03:29:39,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,079 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:39,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:29:39,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:29:39,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash -13181133, now seen corresponding path program 1 times [2024-11-28 03:29:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551867170] [2024-11-28 03:29:39,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:39,117 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:29:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:39,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:29:39,143 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:29:39,143 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-28 03:29:39,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-28 03:29:39,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-28 03:29:39,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-28 03:29:39,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:29:39,149 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:29:39,155 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:29:39,156 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:29:39,212 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:29:39,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 90 transitions, 190 flow [2024-11-28 03:29:39,247 INFO L124 PetriNetUnfolderBase]: 9/108 cut-off events. [2024-11-28 03:29:39,247 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:29:39,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 108 events. 9/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 228 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 76. Up to 6 conditions per place. [2024-11-28 03:29:39,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 90 transitions, 190 flow [2024-11-28 03:29:39,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 90 transitions, 190 flow [2024-11-28 03:29:39,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:29:39,252 INFO L333 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, 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;@2e19ba07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:29:39,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 03:29:39,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:29:39,258 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-28 03:29:39,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:29:39,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,258 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:39,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:29:39,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1309234635, now seen corresponding path program 1 times [2024-11-28 03:29:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710066214] [2024-11-28 03:29:39,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:39,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:39,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710066214] [2024-11-28 03:29:39,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710066214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:39,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:39,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:29:39,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261713328] [2024-11-28 03:29:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:39,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:29:39,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:39,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:29:39,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:29:39,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2024-11-28 03:29:39,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 90 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:39,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2024-11-28 03:29:39,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:39,332 INFO L124 PetriNetUnfolderBase]: 6/129 cut-off events. [2024-11-28 03:29:39,335 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 03:29:39,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 129 events. 6/129 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 389 event pairs, 2 based on Foata normal form. 15/119 useless extension candidates. Maximal degree in co-relation 86. Up to 9 conditions per place. [2024-11-28 03:29:39,337 INFO L140 encePairwiseOnDemand]: 78/90 looper letters, 4 selfloop transitions, 0 changer transitions 0/71 dead transitions. [2024-11-28 03:29:39,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 160 flow [2024-11-28 03:29:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:29:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 03:29:39,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 160 transitions. [2024-11-28 03:29:39,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-28 03:29:39,340 INFO L175 Difference]: Start difference. First operand has 88 places, 90 transitions, 190 flow. Second operand 2 states and 160 transitions. [2024-11-28 03:29:39,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 160 flow [2024-11-28 03:29:39,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:39,342 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 152 flow [2024-11-28 03:29:39,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=152, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-11-28 03:29:39,343 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -13 predicate places. [2024-11-28 03:29:39,343 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 152 flow [2024-11-28 03:29:39,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,344 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:39,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:29:39,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:29:39,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash 250946265, now seen corresponding path program 1 times [2024-11-28 03:29:39,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002488576] [2024-11-28 03:29:39,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:39,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002488576] [2024-11-28 03:29:39,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002488576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:39,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:39,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:39,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836572838] [2024-11-28 03:29:39,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:39,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:39,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:39,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:39,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:39,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2024-11-28 03:29:39,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:39,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2024-11-28 03:29:39,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:39,498 INFO L124 PetriNetUnfolderBase]: 23/253 cut-off events. [2024-11-28 03:29:39,498 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-28 03:29:39,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 253 events. 23/253 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1226 event pairs, 4 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 311. Up to 30 conditions per place. [2024-11-28 03:29:39,501 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-11-28 03:29:39,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 78 transitions, 205 flow [2024-11-28 03:29:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-11-28 03:29:39,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8037037037037037 [2024-11-28 03:29:39,504 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 152 flow. Second operand 3 states and 217 transitions. [2024-11-28 03:29:39,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 78 transitions, 205 flow [2024-11-28 03:29:39,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:39,507 INFO L231 Difference]: Finished difference. Result has 79 places, 77 transitions, 204 flow [2024-11-28 03:29:39,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=79, PETRI_TRANSITIONS=77} [2024-11-28 03:29:39,508 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -9 predicate places. [2024-11-28 03:29:39,508 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 77 transitions, 204 flow [2024-11-28 03:29:39,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,508 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,508 INFO L206 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] [2024-11-28 03:29:39,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:29:39,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:29:39,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1597542048, now seen corresponding path program 1 times [2024-11-28 03:29:39,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377664852] [2024-11-28 03:29:39,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:39,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:39,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377664852] [2024-11-28 03:29:39,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377664852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:39,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:39,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:39,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164861696] [2024-11-28 03:29:39,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:39,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:39,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:39,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:39,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:39,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 90 [2024-11-28 03:29:39,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 77 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:39,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 90 [2024-11-28 03:29:39,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:39,753 INFO L124 PetriNetUnfolderBase]: 89/492 cut-off events. [2024-11-28 03:29:39,753 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-28 03:29:39,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 492 events. 89/492 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2775 event pairs, 18 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 792. Up to 150 conditions per place. [2024-11-28 03:29:39,760 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 23 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-28 03:29:39,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 90 transitions, 309 flow [2024-11-28 03:29:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-28 03:29:39,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.774074074074074 [2024-11-28 03:29:39,763 INFO L175 Difference]: Start difference. First operand has 79 places, 77 transitions, 204 flow. Second operand 3 states and 209 transitions. [2024-11-28 03:29:39,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 90 transitions, 309 flow [2024-11-28 03:29:39,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 90 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:29:39,770 INFO L231 Difference]: Finished difference. Result has 81 places, 87 transitions, 280 flow [2024-11-28 03:29:39,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=81, PETRI_TRANSITIONS=87} [2024-11-28 03:29:39,771 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -7 predicate places. [2024-11-28 03:29:39,771 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 87 transitions, 280 flow [2024-11-28 03:29:39,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,771 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,771 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:39,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:29:39,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:29:39,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,774 INFO L85 PathProgramCache]: Analyzing trace with hash 795818309, now seen corresponding path program 1 times [2024-11-28 03:29:39,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128642001] [2024-11-28 03:29:39,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:39,801 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:29:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:39,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:29:39,827 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:29:39,827 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-28 03:29:39,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-28 03:29:39,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-28 03:29:39,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-28 03:29:39,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-28 03:29:39,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-28 03:29:39,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-28 03:29:39,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-28 03:29:39,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:29:39,832 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:29:39,832 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:29:39,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:29:39,894 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:29:39,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 124 transitions, 266 flow [2024-11-28 03:29:39,925 INFO L124 PetriNetUnfolderBase]: 13/152 cut-off events. [2024-11-28 03:29:39,925 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:29:39,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 13/152 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 420 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 112. Up to 8 conditions per place. [2024-11-28 03:29:39,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 124 transitions, 266 flow [2024-11-28 03:29:39,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 124 transitions, 266 flow [2024-11-28 03:29:39,933 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:29:39,933 INFO L333 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, 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;@2e19ba07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:29:39,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-28 03:29:39,937 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:29:39,937 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-28 03:29:39,937 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:29:39,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:39,937 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:39,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:29:39,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2073212404, now seen corresponding path program 1 times [2024-11-28 03:29:39,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:39,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776483346] [2024-11-28 03:29:39,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:39,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:39,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776483346] [2024-11-28 03:29:39,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776483346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:39,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:39,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:29:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54077930] [2024-11-28 03:29:39,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:39,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:29:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:39,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:29:39,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:29:39,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 124 [2024-11-28 03:29:39,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 124 transitions, 266 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:39,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:39,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 124 [2024-11-28 03:29:39,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:40,053 INFO L124 PetriNetUnfolderBase]: 21/313 cut-off events. [2024-11-28 03:29:40,054 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-28 03:29:40,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 313 events. 21/313 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1643 event pairs, 10 based on Foata normal form. 37/281 useless extension candidates. Maximal degree in co-relation 196. Up to 25 conditions per place. [2024-11-28 03:29:40,058 INFO L140 encePairwiseOnDemand]: 107/124 looper letters, 6 selfloop transitions, 0 changer transitions 0/98 dead transitions. [2024-11-28 03:29:40,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 226 flow [2024-11-28 03:29:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:29:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 03:29:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 219 transitions. [2024-11-28 03:29:40,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8830645161290323 [2024-11-28 03:29:40,060 INFO L175 Difference]: Start difference. First operand has 121 places, 124 transitions, 266 flow. Second operand 2 states and 219 transitions. [2024-11-28 03:29:40,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 226 flow [2024-11-28 03:29:40,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 98 transitions, 224 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:40,065 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 212 flow [2024-11-28 03:29:40,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2024-11-28 03:29:40,069 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, -18 predicate places. [2024-11-28 03:29:40,069 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 212 flow [2024-11-28 03:29:40,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:40,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:40,070 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:40,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:29:40,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:29:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash -507688360, now seen corresponding path program 1 times [2024-11-28 03:29:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101692403] [2024-11-28 03:29:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:40,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:40,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101692403] [2024-11-28 03:29:40,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101692403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:40,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:40,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:40,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467218429] [2024-11-28 03:29:40,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:40,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:40,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:40,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:40,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:40,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 124 [2024-11-28 03:29:40,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:40,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:40,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 124 [2024-11-28 03:29:40,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:40,528 INFO L124 PetriNetUnfolderBase]: 271/1711 cut-off events. [2024-11-28 03:29:40,529 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-28 03:29:40,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 1711 events. 271/1711 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 15984 event pairs, 67 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 2203. Up to 271 conditions per place. [2024-11-28 03:29:40,550 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 17 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-11-28 03:29:40,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 296 flow [2024-11-28 03:29:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-28 03:29:40,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2024-11-28 03:29:40,553 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 212 flow. Second operand 3 states and 296 transitions. [2024-11-28 03:29:40,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 296 flow [2024-11-28 03:29:40,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 109 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:29:40,557 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 290 flow [2024-11-28 03:29:40,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-11-28 03:29:40,559 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, -14 predicate places. [2024-11-28 03:29:40,559 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 290 flow [2024-11-28 03:29:40,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:40,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:40,560 INFO L206 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] [2024-11-28 03:29:40,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:29:40,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:29:40,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1963620739, now seen corresponding path program 1 times [2024-11-28 03:29:40,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518633850] [2024-11-28 03:29:40,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:40,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:40,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:40,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518633850] [2024-11-28 03:29:40,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518633850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:40,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:40,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:40,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195802612] [2024-11-28 03:29:40,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:40,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:40,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:40,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:40,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:40,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2024-11-28 03:29:40,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:40,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:40,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2024-11-28 03:29:40,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:41,903 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][101], [120#true, Black: 126#true, 124#true, 37#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 59#L699-1true, 122#true, 128#(= |#race~r~0| 0), 6#L701-2true, 84#L709-3true, 133#(= |#race~s~0| 0), 118#true]) [2024-11-28 03:29:41,904 INFO L294 olderBase$Statistics]: this new event has 64 ancestors and is cut-off event [2024-11-28 03:29:41,904 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:41,904 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:41,904 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:42,012 INFO L124 PetriNetUnfolderBase]: 2449/7994 cut-off events. [2024-11-28 03:29:42,012 INFO L125 PetriNetUnfolderBase]: For 1543/1543 co-relation queries the response was YES. [2024-11-28 03:29:42,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13833 conditions, 7994 events. 2449/7994 cut-off events. For 1543/1543 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 84172 event pairs, 629 based on Foata normal form. 0/6838 useless extension candidates. Maximal degree in co-relation 13825. Up to 3187 conditions per place. [2024-11-28 03:29:42,095 INFO L140 encePairwiseOnDemand]: 103/124 looper letters, 38 selfloop transitions, 15 changer transitions 0/130 dead transitions. [2024-11-28 03:29:42,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 130 transitions, 470 flow [2024-11-28 03:29:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-28 03:29:42,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7634408602150538 [2024-11-28 03:29:42,097 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 290 flow. Second operand 3 states and 284 transitions. [2024-11-28 03:29:42,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 130 transitions, 470 flow [2024-11-28 03:29:42,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 130 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:29:42,104 INFO L231 Difference]: Finished difference. Result has 109 places, 122 transitions, 404 flow [2024-11-28 03:29:42,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=109, PETRI_TRANSITIONS=122} [2024-11-28 03:29:42,105 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, -12 predicate places. [2024-11-28 03:29:42,105 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 122 transitions, 404 flow [2024-11-28 03:29:42,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:42,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:42,107 INFO L206 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] [2024-11-28 03:29:42,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:29:42,108 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:29:42,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1887580736, now seen corresponding path program 1 times [2024-11-28 03:29:42,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:42,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686557194] [2024-11-28 03:29:42,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:42,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:42,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686557194] [2024-11-28 03:29:42,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686557194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:42,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:42,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:42,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386985408] [2024-11-28 03:29:42,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:42,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:42,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:42,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:42,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:42,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 124 [2024-11-28 03:29:42,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 122 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:42,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:42,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 124 [2024-11-28 03:29:42,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:43,056 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][113], [136#true, 120#true, Black: 126#true, 124#true, 90#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 59#L699-1true, Black: 131#true, 122#true, 67#L699-5true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,056 INFO L294 olderBase$Statistics]: this new event has 60 ancestors and is cut-off event [2024-11-28 03:29:43,056 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-28 03:29:43,056 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-28 03:29:43,056 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2024-11-28 03:29:43,061 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][137], [120#true, 136#true, 72#L700true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 84#L709-3true, 133#(= |#race~s~0| 0), 118#true]) [2024-11-28 03:29:43,061 INFO L294 olderBase$Statistics]: this new event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,061 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,062 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,065 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,103 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][113], [120#true, 136#true, 72#L700true, Black: 126#true, 124#true, 90#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 59#L699-1true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,103 INFO L294 olderBase$Statistics]: this new event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,103 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-28 03:29:43,103 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-28 03:29:43,104 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2024-11-28 03:29:43,215 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([471] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][136], [69#L699-2true, 120#true, 136#true, 17#L699-1true, 72#L700true, Black: 126#true, 124#true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,215 INFO L294 olderBase$Statistics]: this new event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,216 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:43,216 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,216 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:43,218 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][137], [136#true, 120#true, 72#L700true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true, 55#L699-2true]) [2024-11-28 03:29:43,218 INFO L294 olderBase$Statistics]: this new event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,219 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:43,219 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,219 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-11-28 03:29:43,312 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [136#true, 120#true, 111#L701-1true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 43#L699-2true, 118#true]) [2024-11-28 03:29:43,313 INFO L294 olderBase$Statistics]: this new event has 66 ancestors and is cut-off event [2024-11-28 03:29:43,313 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,313 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,313 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,315 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 22#L699-1true, 84#L709-3true, 118#true]) [2024-11-28 03:29:43,315 INFO L294 olderBase$Statistics]: this new event has 66 ancestors and is cut-off event [2024-11-28 03:29:43,315 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,315 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,315 INFO L297 olderBase$Statistics]: existing Event has 56 ancestors and is cut-off event [2024-11-28 03:29:43,336 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, 111#L701-1true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 13#L699-4true, 118#true]) [2024-11-28 03:29:43,336 INFO L294 olderBase$Statistics]: this new event has 68 ancestors and is cut-off event [2024-11-28 03:29:43,337 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-11-28 03:29:43,337 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-11-28 03:29:43,337 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-28 03:29:43,339 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 84#L709-3true, 43#L699-2true, 118#true]) [2024-11-28 03:29:43,339 INFO L294 olderBase$Statistics]: this new event has 67 ancestors and is cut-off event [2024-11-28 03:29:43,339 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2024-11-28 03:29:43,339 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2024-11-28 03:29:43,339 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2024-11-28 03:29:43,357 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 84#L709-3true, 13#L699-4true, 118#true]) [2024-11-28 03:29:43,358 INFO L294 olderBase$Statistics]: this new event has 69 ancestors and is cut-off event [2024-11-28 03:29:43,358 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-11-28 03:29:43,358 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-11-28 03:29:43,358 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-28 03:29:43,376 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][137], [136#true, 120#true, 72#L700true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,376 INFO L294 olderBase$Statistics]: this new event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,377 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,377 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,377 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,377 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,390 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([471] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][136], [120#true, 136#true, 72#L700true, 17#L699-1true, Black: 126#true, 124#true, Black: 131#true, 122#true, 133#(= |#race~s~0| 0), 84#L709-3true, 105#L701-2true, 118#true]) [2024-11-28 03:29:43,390 INFO L294 olderBase$Statistics]: this new event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,390 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,390 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,390 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,391 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [136#true, 120#true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 32#thr1Err5ASSERT_VIOLATIONDATA_RACEtrue, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,392 INFO L294 olderBase$Statistics]: this new event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L292 olderBase$Statistics]: inserting event number 6 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][137], [136#true, 120#true, 72#L700true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 133#(= |#race~s~0| 0), 84#L709-3true, 118#true]) [2024-11-28 03:29:43,392 INFO L294 olderBase$Statistics]: this new event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,392 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,393 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-11-28 03:29:43,393 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-28 03:29:43,409 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, 111#L701-1true, Black: 126#true, 124#true, 114#L701-2true, 59#L699-1true, Black: 131#true, 122#true, 84#L709-3true, 133#(= |#race~s~0| 0), 118#true]) [2024-11-28 03:29:43,409 INFO L294 olderBase$Statistics]: this new event has 73 ancestors and is cut-off event [2024-11-28 03:29:43,409 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,409 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,409 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,410 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [136#true, 120#true, Black: 126#true, 124#true, 59#L699-1true, Black: 131#true, 122#true, 14#L701-1true, 6#L701-2true, 84#L709-3true, 133#(= |#race~s~0| 0), 118#true]) [2024-11-28 03:29:43,411 INFO L294 olderBase$Statistics]: this new event has 73 ancestors and is cut-off event [2024-11-28 03:29:43,411 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,411 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,411 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-11-28 03:29:43,414 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([405] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][97], [120#true, 136#true, Black: 126#true, 124#true, 114#L701-2true, 59#L699-1true, Black: 131#true, 122#true, 6#L701-2true, 84#L709-3true, 133#(= |#race~s~0| 0), 118#true]) [2024-11-28 03:29:43,414 INFO L294 olderBase$Statistics]: this new event has 74 ancestors and is cut-off event [2024-11-28 03:29:43,414 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,414 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,414 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-28 03:29:43,420 INFO L124 PetriNetUnfolderBase]: 3190/9540 cut-off events. [2024-11-28 03:29:43,420 INFO L125 PetriNetUnfolderBase]: For 5689/5979 co-relation queries the response was YES. [2024-11-28 03:29:43,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20813 conditions, 9540 events. 3190/9540 cut-off events. For 5689/5979 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 99187 event pairs, 896 based on Foata normal form. 51/8091 useless extension candidates. Maximal degree in co-relation 20804. Up to 3526 conditions per place. [2024-11-28 03:29:43,628 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 34 selfloop transitions, 17 changer transitions 0/143 dead transitions. [2024-11-28 03:29:43,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 143 transitions, 608 flow [2024-11-28 03:29:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:43,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-11-28 03:29:43,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768817204301075 [2024-11-28 03:29:43,630 INFO L175 Difference]: Start difference. First operand has 109 places, 122 transitions, 404 flow. Second operand 3 states and 289 transitions. [2024-11-28 03:29:43,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 143 transitions, 608 flow [2024-11-28 03:29:43,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 143 transitions, 564 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:29:43,647 INFO L231 Difference]: Finished difference. Result has 111 places, 137 transitions, 532 flow [2024-11-28 03:29:43,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=111, PETRI_TRANSITIONS=137} [2024-11-28 03:29:43,648 INFO L279 CegarLoopForPetriNet]: 121 programPoint places, -10 predicate places. [2024-11-28 03:29:43,649 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 137 transitions, 532 flow [2024-11-28 03:29:43,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:29:43,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:43,649 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 03:29:43,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:29:43,649 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:29:43,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2073938419, now seen corresponding path program 1 times [2024-11-28 03:29:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392022135] [2024-11-28 03:29:43,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:43,676 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:29:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:29:43,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:29:43,700 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:29:43,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2024-11-28 03:29:43,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-28 03:29:43,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-28 03:29:43,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-28 03:29:43,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-28 03:29:43,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:29:43,705 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 03:29:43,747 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-11-28 03:29:43,747 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:29:43,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:29:43 BasicIcfg [2024-11-28 03:29:43,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:29:43,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:29:43,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:29:43,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:29:43,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:38" (3/4) ... [2024-11-28 03:29:43,758 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 03:29:43,819 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11. [2024-11-28 03:29:43,882 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:29:43,882 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:29:43,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:29:43,883 INFO L158 Benchmark]: Toolchain (without parser) took 6748.98ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.1MB in the beginning and 280.3MB in the end (delta: -162.2MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. [2024-11-28 03:29:43,883 INFO L158 Benchmark]: CDTParser took 1.75ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:43,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.63ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 98.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:29:43,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.14ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:43,885 INFO L158 Benchmark]: Boogie Preprocessor took 39.79ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 96.2MB in the end (delta: 772.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:43,885 INFO L158 Benchmark]: RCFGBuilder took 514.03ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 81.2MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:29:43,886 INFO L158 Benchmark]: TraceAbstraction took 5459.25ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 80.7MB in the beginning and 288.7MB in the end (delta: -208.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2024-11-28 03:29:43,886 INFO L158 Benchmark]: Witness Printer took 126.16ms. Allocated memory is still 427.8MB. Free memory was 288.7MB in the beginning and 280.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:29:43,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.75ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.63ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 98.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.14ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.79ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 96.2MB in the end (delta: 772.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.03ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 81.2MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5459.25ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 80.7MB in the beginning and 288.7MB in the end (delta: -208.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Witness Printer took 126.16ms. Allocated memory is still 427.8MB. Free memory was 288.7MB in the beginning and 280.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 698]: Data race detected Data race detected The following path leads to a data race: [L688] 0 unsigned int r = 0; VAL [r=0] [L689] 0 unsigned int s = 0; VAL [r=0, s=0] [L707] 0 pthread_t t; VAL [r=0, s=0] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=0, s=0, t=-1] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=0, s=0, t=0] [L696] 1 unsigned int l = 0; VAL [\old(arg)={0:0}, arg={0:0}, l=0, r=0, s=0] [L697] CALL 1 __VERIFIER_atomic_inc_r() [L692] EXPR 1 r!=-1 [L692] CALL 1 assume_abort_if_not(r!=-1) [L3] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(r!=-1) [L693] EXPR 1 r + 1 [L693] 1 r = r + 1 [L697] RET 1 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [\old(arg)={0:0}, arg={0:0}, l=0, r=1, s=0] [L696] 2 unsigned int l = 0; VAL [\old(arg)={0:0}, arg={0:0}, l=0, r=1, s=0] [L697] CALL 2 __VERIFIER_atomic_inc_r() [L692] EXPR 2 r!=-1 [L692] CALL 2 assume_abort_if_not(r!=-1) [L3] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(r!=-1) [L693] EXPR 2 r + 1 [L693] 2 r = r + 1 [L697] RET 2 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [\old(arg)={0:0}, arg={0:0}, l=0, r=2, s=0] Now there is a data race on ~r~0 between C: r = r + 1 [693] and C: r == 1 [698] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 15 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 3 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 115 locations, 22 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 26 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 146 locations, 29 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: 3.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 40 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=4, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:29:43,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f0899b-df05-4565-930b-1fa5351c2a3b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)