./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:50,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:50,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:07:50,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:50,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:50,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:50,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:50,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:50,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:50,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:50,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:50,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:50,342 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:50,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:50,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:50,344 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:07:50,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:50,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:07:50,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:50,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:50,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:50,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:50,347 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:07:50,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:50,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:07:50,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:50,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:50,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:50,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:50,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:50,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:50,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:50,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:50,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:50,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:50,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:50,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:50,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:50,354 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:50,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:50,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:50,355 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8bcba962b15df67a0e136eef2e702f216cc120b7626a7b8dc8877f6ecaf3765 [2023-11-21 22:07:50,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:50,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:50,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:50,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:50,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:50,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-race.i [2023-11-21 22:07:53,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:54,054 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:54,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-race.i [2023-11-21 22:07:54,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/data/b4153daa1/b407dd3d8c2a47cdb2f1af0fd11e60ff/FLAGd42fa7883 [2023-11-21 22:07:54,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/data/b4153daa1/b407dd3d8c2a47cdb2f1af0fd11e60ff [2023-11-21 22:07:54,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:54,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:54,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:54,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:54,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:54,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45828f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54, skipping insertion in model container [2023-11-21 22:07:54,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,172 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:54,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:54,584 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:54,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:54,702 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:54,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54 WrapperNode [2023-11-21 22:07:54,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:54,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:54,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:54,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:54,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,803 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 157 [2023-11-21 22:07:54,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:54,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:54,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:54,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:54,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:54,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:54,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:54,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:54,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (1/1) ... [2023-11-21 22:07:54,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:54,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:54,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd803621-ae52-4d3d-b779-13fceccc193b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:07:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 22:07:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 22:07:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:07:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:07:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:54,970 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:07:55,110 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:55,112 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:55,485 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:55,732 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:55,734 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:07:55,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:55 BoogieIcfgContainer [2023-11-21 22:07:55,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:55,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:55,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:55,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:55,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:54" (1/3) ... [2023-11-21 22:07:55,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bbd1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:55, skipping insertion in model container [2023-11-21 22:07:55,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:54" (2/3) ... [2023-11-21 22:07:55,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bbd1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:55, skipping insertion in model container [2023-11-21 22:07:55,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:55" (3/3) ... [2023-11-21 22:07:55,754 INFO L112 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur-race.i [2023-11-21 22:07:55,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:07:55,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:55,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-21 22:07:55,777 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:07:55,859 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:07:55,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 134 transitions, 272 flow [2023-11-21 22:07:55,993 INFO L124 PetriNetUnfolderBase]: 8/145 cut-off events. [2023-11-21 22:07:55,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:07:56,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 145 events. 8/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 163 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. [2023-11-21 22:07:56,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 134 transitions, 272 flow [2023-11-21 22:07:56,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 134 transitions, 272 flow [2023-11-21 22:07:56,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:56,027 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4fb442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:56,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-21 22:07:56,049 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:56,053 INFO L124 PetriNetUnfolderBase]: 3/47 cut-off events. [2023-11-21 22:07:56,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:07:56,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:56,055 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:56,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-21 22:07:56,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash 626929758, now seen corresponding path program 1 times [2023-11-21 22:07:56,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119676467] [2023-11-21 22:07:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:56,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:56,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:56,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:56,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:07:56,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-11-21 22:07:56,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-11-21 22:07:56,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-11-21 22:07:56,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-11-21 22:07:56,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-11-21 22:07:56,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-11-21 22:07:56,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-11-21 22:07:56,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-11-21 22:07:56,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-11-21 22:07:56,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-11-21 22:07:56,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-11-21 22:07:56,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-11-21 22:07:56,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-11-21 22:07:56,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-11-21 22:07:56,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-11-21 22:07:56,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-11-21 22:07:56,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-11-21 22:07:56,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-11-21 22:07:56,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-11-21 22:07:56,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-11-21 22:07:56,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-11-21 22:07:56,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-11-21 22:07:56,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-11-21 22:07:56,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-11-21 22:07:56,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-11-21 22:07:56,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-11-21 22:07:56,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-11-21 22:07:56,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-11-21 22:07:56,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-11-21 22:07:56,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-11-21 22:07:56,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-11-21 22:07:56,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-11-21 22:07:56,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-11-21 22:07:56,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-11-21 22:07:56,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-11-21 22:07:56,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-11-21 22:07:56,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-11-21 22:07:56,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-11-21 22:07:56,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-11-21 22:07:56,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:07:56,294 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:07:56,303 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:07:56,304 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:07:56,410 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:07:56,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 241 transitions, 492 flow [2023-11-21 22:07:56,555 INFO L124 PetriNetUnfolderBase]: 15/265 cut-off events. [2023-11-21 22:07:56,555 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:07:56,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 265 events. 15/265 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 648 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. [2023-11-21 22:07:56,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 241 transitions, 492 flow [2023-11-21 22:07:56,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 241 transitions, 492 flow [2023-11-21 22:07:56,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:56,580 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4fb442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:56,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-21 22:07:56,622 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:56,623 INFO L124 PetriNetUnfolderBase]: 5/58 cut-off events. [2023-11-21 22:07:56,623 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:07:56,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:56,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:56,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-11-21 22:07:56,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:56,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1948548894, now seen corresponding path program 1 times [2023-11-21 22:07:56,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:56,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661272294] [2023-11-21 22:07:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:56,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:56,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661272294] [2023-11-21 22:07:56,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661272294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:56,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:56,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:07:56,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297577234] [2023-11-21 22:07:56,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:56,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:07:56,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:56,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:07:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:07:56,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 241 [2023-11-21 22:07:56,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 241 transitions, 492 flow. Second operand has 2 states, 2 states have (on average 200.0) internal successors, (400), 2 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:56,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:56,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 241 [2023-11-21 22:07:56,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:07:56,959 INFO L124 PetriNetUnfolderBase]: 21/508 cut-off events. [2023-11-21 22:07:56,959 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:07:56,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 508 events. 21/508 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1877 event pairs, 8 based on Foata normal form. 52/492 useless extension candidates. Maximal degree in co-relation 247. Up to 33 conditions per place. [2023-11-21 22:07:56,966 INFO L140 encePairwiseOnDemand]: 209/241 looper letters, 8 selfloop transitions, 0 changer transitions 0/194 dead transitions. [2023-11-21 22:07:56,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 194 transitions, 414 flow [2023-11-21 22:07:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:07:56,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:07:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 438 transitions. [2023-11-21 22:07:56,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9087136929460581 [2023-11-21 22:07:56,994 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 438 transitions. [2023-11-21 22:07:56,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 438 transitions. [2023-11-21 22:07:57,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:07:57,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 438 transitions. [2023-11-21 22:07:57,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 219.0) internal successors, (438), 2 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:57,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:57,016 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:57,017 INFO L175 Difference]: Start difference. First operand has 233 places, 241 transitions, 492 flow. Second operand 2 states and 438 transitions. [2023-11-21 22:07:57,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 194 transitions, 414 flow [2023-11-21 22:07:57,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 194 transitions, 414 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:07:57,028 INFO L231 Difference]: Finished difference. Result has 196 places, 194 transitions, 398 flow [2023-11-21 22:07:57,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=398, PETRI_PLACES=196, PETRI_TRANSITIONS=194} [2023-11-21 22:07:57,035 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -37 predicate places. [2023-11-21 22:07:57,035 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 194 transitions, 398 flow [2023-11-21 22:07:57,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 200.0) internal successors, (400), 2 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:57,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:57,036 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:57,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:07:57,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-11-21 22:07:57,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash -861283490, now seen corresponding path program 1 times [2023-11-21 22:07:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:57,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592737502] [2023-11-21 22:07:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:57,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:57,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:57,090 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:07:57,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2023-11-21 22:07:57,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-11-21 22:07:57,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-11-21 22:07:57,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-11-21 22:07:57,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-11-21 22:07:57,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-11-21 22:07:57,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-11-21 22:07:57,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-11-21 22:07:57,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-11-21 22:07:57,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-11-21 22:07:57,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-11-21 22:07:57,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-11-21 22:07:57,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2023-11-21 22:07:57,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-11-21 22:07:57,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-11-21 22:07:57,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-11-21 22:07:57,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-11-21 22:07:57,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-11-21 22:07:57,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-11-21 22:07:57,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-11-21 22:07:57,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-11-21 22:07:57,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-11-21 22:07:57,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-11-21 22:07:57,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-11-21 22:07:57,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-11-21 22:07:57,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2023-11-21 22:07:57,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-11-21 22:07:57,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-11-21 22:07:57,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-11-21 22:07:57,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-11-21 22:07:57,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2023-11-21 22:07:57,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2023-11-21 22:07:57,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-11-21 22:07:57,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-11-21 22:07:57,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-11-21 22:07:57,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-11-21 22:07:57,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-11-21 22:07:57,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-11-21 22:07:57,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2023-11-21 22:07:57,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2023-11-21 22:07:57,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-11-21 22:07:57,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-11-21 22:07:57,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-11-21 22:07:57,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-11-21 22:07:57,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2023-11-21 22:07:57,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-11-21 22:07:57,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-11-21 22:07:57,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-11-21 22:07:57,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-11-21 22:07:57,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-11-21 22:07:57,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-11-21 22:07:57,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-11-21 22:07:57,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-11-21 22:07:57,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-11-21 22:07:57,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-11-21 22:07:57,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-11-21 22:07:57,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-11-21 22:07:57,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2023-11-21 22:07:57,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:07:57,103 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:07:57,104 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:07:57,104 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:07:57,192 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:07:57,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 348 transitions, 714 flow [2023-11-21 22:07:57,322 INFO L124 PetriNetUnfolderBase]: 22/385 cut-off events. [2023-11-21 22:07:57,322 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:07:57,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 385 events. 22/385 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1295 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2023-11-21 22:07:57,327 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 348 transitions, 714 flow [2023-11-21 22:07:57,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 348 transitions, 714 flow [2023-11-21 22:07:57,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:57,345 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4fb442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:57,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2023-11-21 22:07:57,354 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:57,355 INFO L124 PetriNetUnfolderBase]: 5/58 cut-off events. [2023-11-21 22:07:57,355 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:07:57,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:57,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:57,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-21 22:07:57,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:57,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2079977008, now seen corresponding path program 1 times [2023-11-21 22:07:57,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:57,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942151416] [2023-11-21 22:07:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:57,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:57,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:57,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942151416] [2023-11-21 22:07:57,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942151416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:57,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:57,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:07:57,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519541398] [2023-11-21 22:07:57,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:57,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:07:57,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:57,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:07:57,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:07:57,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 348 [2023-11-21 22:07:57,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 348 transitions, 714 flow. Second operand has 2 states, 2 states have (on average 287.0) internal successors, (574), 2 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:57,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:57,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 348 [2023-11-21 22:07:57,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:07:58,267 INFO L124 PetriNetUnfolderBase]: 146/2182 cut-off events. [2023-11-21 22:07:58,268 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-11-21 22:07:58,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2441 conditions, 2182 events. 146/2182 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 15533 event pairs, 72 based on Foata normal form. 313/2195 useless extension candidates. Maximal degree in co-relation 582. Up to 196 conditions per place. [2023-11-21 22:07:58,304 INFO L140 encePairwiseOnDemand]: 301/348 looper letters, 12 selfloop transitions, 0 changer transitions 0/281 dead transitions. [2023-11-21 22:07:58,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 604 flow [2023-11-21 22:07:58,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:07:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:07:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 631 transitions. [2023-11-21 22:07:58,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9066091954022989 [2023-11-21 22:07:58,312 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 631 transitions. [2023-11-21 22:07:58,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 631 transitions. [2023-11-21 22:07:58,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:07:58,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 631 transitions. [2023-11-21 22:07:58,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:58,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:58,322 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:58,322 INFO L175 Difference]: Start difference. First operand has 336 places, 348 transitions, 714 flow. Second operand 2 states and 631 transitions. [2023-11-21 22:07:58,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 604 flow [2023-11-21 22:07:58,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 281 transitions, 602 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-21 22:07:58,340 INFO L231 Difference]: Finished difference. Result has 283 places, 281 transitions, 578 flow [2023-11-21 22:07:58,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=578, PETRI_PLACES=283, PETRI_TRANSITIONS=281} [2023-11-21 22:07:58,343 INFO L281 CegarLoopForPetriNet]: 336 programPoint places, -53 predicate places. [2023-11-21 22:07:58,343 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 281 transitions, 578 flow [2023-11-21 22:07:58,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 287.0) internal successors, (574), 2 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:58,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:58,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:07:58,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:07:58,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-21 22:07:58,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1672408167, now seen corresponding path program 1 times [2023-11-21 22:07:58,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:58,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352842324] [2023-11-21 22:07:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:58,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:58,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:58,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352842324] [2023-11-21 22:07:58,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352842324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:58,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:58,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:07:58,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130549898] [2023-11-21 22:07:58,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:58,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:07:58,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:07:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:07:59,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 348 [2023-11-21 22:07:59,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 281 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 259.5) internal successors, (1557), 6 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:59,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:59,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 348 [2023-11-21 22:07:59,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:08:04,826 INFO L124 PetriNetUnfolderBase]: 2365/20252 cut-off events. [2023-11-21 22:08:04,826 INFO L125 PetriNetUnfolderBase]: For 700/700 co-relation queries the response was YES. [2023-11-21 22:08:04,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24337 conditions, 20252 events. 2365/20252 cut-off events. For 700/700 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 269331 event pairs, 328 based on Foata normal form. 0/17537 useless extension candidates. Maximal degree in co-relation 24331. Up to 2040 conditions per place. [2023-11-21 22:08:05,079 INFO L140 encePairwiseOnDemand]: 321/348 looper letters, 74 selfloop transitions, 29 changer transitions 0/344 dead transitions. [2023-11-21 22:08:05,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 344 transitions, 950 flow [2023-11-21 22:08:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:08:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1655 transitions. [2023-11-21 22:08:05,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7926245210727969 [2023-11-21 22:08:05,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1655 transitions. [2023-11-21 22:08:05,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1655 transitions. [2023-11-21 22:08:05,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:08:05,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1655 transitions. [2023-11-21 22:08:05,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.8333333333333) internal successors, (1655), 6 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 348.0) internal successors, (2436), 7 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,102 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 348.0) internal successors, (2436), 7 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,102 INFO L175 Difference]: Start difference. First operand has 283 places, 281 transitions, 578 flow. Second operand 6 states and 1655 transitions. [2023-11-21 22:08:05,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 344 transitions, 950 flow [2023-11-21 22:08:05,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 344 transitions, 950 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:08:05,116 INFO L231 Difference]: Finished difference. Result has 293 places, 309 transitions, 802 flow [2023-11-21 22:08:05,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=293, PETRI_TRANSITIONS=309} [2023-11-21 22:08:05,120 INFO L281 CegarLoopForPetriNet]: 336 programPoint places, -43 predicate places. [2023-11-21 22:08:05,120 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 309 transitions, 802 flow [2023-11-21 22:08:05,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.5) internal successors, (1557), 6 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:08:05,122 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:05,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:08:05,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-21 22:08:05,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:05,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1319705878, now seen corresponding path program 1 times [2023-11-21 22:08:05,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:05,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864913562] [2023-11-21 22:08:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:05,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:05,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:08:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:05,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:08:05,161 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:08:05,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2023-11-21 22:08:05,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2023-11-21 22:08:05,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2023-11-21 22:08:05,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2023-11-21 22:08:05,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2023-11-21 22:08:05,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2023-11-21 22:08:05,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2023-11-21 22:08:05,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2023-11-21 22:08:05,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2023-11-21 22:08:05,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2023-11-21 22:08:05,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2023-11-21 22:08:05,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2023-11-21 22:08:05,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2023-11-21 22:08:05,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2023-11-21 22:08:05,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2023-11-21 22:08:05,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2023-11-21 22:08:05,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2023-11-21 22:08:05,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2023-11-21 22:08:05,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2023-11-21 22:08:05,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2023-11-21 22:08:05,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2023-11-21 22:08:05,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2023-11-21 22:08:05,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2023-11-21 22:08:05,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2023-11-21 22:08:05,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2023-11-21 22:08:05,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2023-11-21 22:08:05,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2023-11-21 22:08:05,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:08:05,177 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 22:08:05,178 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:08:05,178 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:08:05,288 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:08:05,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 455 transitions, 938 flow [2023-11-21 22:08:05,452 INFO L124 PetriNetUnfolderBase]: 29/505 cut-off events. [2023-11-21 22:08:05,453 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:08:05,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 505 events. 29/505 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2001 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 437. Up to 10 conditions per place. [2023-11-21 22:08:05,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 455 transitions, 938 flow [2023-11-21 22:08:05,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 455 transitions, 938 flow [2023-11-21 22:08:05,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:05,474 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4fb442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:05,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-11-21 22:08:05,480 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:08:05,481 INFO L124 PetriNetUnfolderBase]: 5/58 cut-off events. [2023-11-21 22:08:05,481 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:08:05,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:08:05,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:05,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-21 22:08:05,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:05,482 INFO L85 PathProgramCache]: Analyzing trace with hash -839463305, now seen corresponding path program 1 times [2023-11-21 22:08:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:05,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16052274] [2023-11-21 22:08:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:05,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16052274] [2023-11-21 22:08:05,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16052274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:05,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:05,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:05,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578106343] [2023-11-21 22:08:05,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:05,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:08:05,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:08:05,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:08:05,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 455 [2023-11-21 22:08:05,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 455 transitions, 938 flow. Second operand has 2 states, 2 states have (on average 374.0) internal successors, (748), 2 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:08:05,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 455 [2023-11-21 22:08:05,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:08:08,590 INFO L124 PetriNetUnfolderBase]: 851/9095 cut-off events. [2023-11-21 22:08:08,590 INFO L125 PetriNetUnfolderBase]: For 790/790 co-relation queries the response was YES. [2023-11-21 22:08:08,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10456 conditions, 9095 events. 851/9095 cut-off events. For 790/790 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 95088 event pairs, 468 based on Foata normal form. 1719/9581 useless extension candidates. Maximal degree in co-relation 2517. Up to 1057 conditions per place. [2023-11-21 22:08:08,762 INFO L140 encePairwiseOnDemand]: 393/455 looper letters, 16 selfloop transitions, 0 changer transitions 0/368 dead transitions. [2023-11-21 22:08:08,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 368 transitions, 796 flow [2023-11-21 22:08:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:08:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:08:08,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 824 transitions. [2023-11-21 22:08:08,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9054945054945055 [2023-11-21 22:08:08,766 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 824 transitions. [2023-11-21 22:08:08,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 824 transitions. [2023-11-21 22:08:08,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:08:08,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 824 transitions. [2023-11-21 22:08:08,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 412.0) internal successors, (824), 2 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:08,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:08,775 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:08,775 INFO L175 Difference]: Start difference. First operand has 439 places, 455 transitions, 938 flow. Second operand 2 states and 824 transitions. [2023-11-21 22:08:08,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 368 transitions, 796 flow [2023-11-21 22:08:08,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 368 transitions, 790 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-21 22:08:08,785 INFO L231 Difference]: Finished difference. Result has 370 places, 368 transitions, 758 flow [2023-11-21 22:08:08,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=758, PETRI_PLACES=370, PETRI_TRANSITIONS=368} [2023-11-21 22:08:08,787 INFO L281 CegarLoopForPetriNet]: 439 programPoint places, -69 predicate places. [2023-11-21 22:08:08,788 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 368 transitions, 758 flow [2023-11-21 22:08:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 374.0) internal successors, (748), 2 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:08,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:08:08,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:08,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:08:08,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-21 22:08:08,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash 623718752, now seen corresponding path program 1 times [2023-11-21 22:08:08,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:08,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301134019] [2023-11-21 22:08:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:09,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:09,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301134019] [2023-11-21 22:08:09,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301134019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:09,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:09,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:08:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804704710] [2023-11-21 22:08:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:09,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:10,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 455 [2023-11-21 22:08:10,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 368 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 346.5) internal successors, (2079), 6 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:10,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:08:10,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 455 [2023-11-21 22:08:10,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:08:35,076 INFO L124 PetriNetUnfolderBase]: 14930/97933 cut-off events. [2023-11-21 22:08:35,076 INFO L125 PetriNetUnfolderBase]: For 3586/3586 co-relation queries the response was YES. [2023-11-21 22:08:36,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120718 conditions, 97933 events. 14930/97933 cut-off events. For 3586/3586 co-relation queries the response was YES. Maximal size of possible extension queue 1574. Compared 1590811 event pairs, 4400 based on Foata normal form. 0/85537 useless extension candidates. Maximal degree in co-relation 120711. Up to 12420 conditions per place. [2023-11-21 22:08:37,458 INFO L140 encePairwiseOnDemand]: 427/455 looper letters, 90 selfloop transitions, 33 changer transitions 0/447 dead transitions. [2023-11-21 22:08:37,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 447 transitions, 1222 flow [2023-11-21 22:08:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:08:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2197 transitions. [2023-11-21 22:08:37,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8047619047619048 [2023-11-21 22:08:37,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2197 transitions. [2023-11-21 22:08:37,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2197 transitions. [2023-11-21 22:08:37,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:08:37,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2197 transitions. [2023-11-21 22:08:37,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:37,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 455.0) internal successors, (3185), 7 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:37,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 455.0) internal successors, (3185), 7 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:37,492 INFO L175 Difference]: Start difference. First operand has 370 places, 368 transitions, 758 flow. Second operand 6 states and 2197 transitions. [2023-11-21 22:08:37,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 447 transitions, 1222 flow [2023-11-21 22:08:37,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 447 transitions, 1222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:08:37,511 INFO L231 Difference]: Finished difference. Result has 380 places, 400 transitions, 1008 flow [2023-11-21 22:08:37,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1008, PETRI_PLACES=380, PETRI_TRANSITIONS=400} [2023-11-21 22:08:37,516 INFO L281 CegarLoopForPetriNet]: 439 programPoint places, -59 predicate places. [2023-11-21 22:08:37,516 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 400 transitions, 1008 flow [2023-11-21 22:08:37,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 346.5) internal successors, (2079), 6 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:37,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:08:37,519 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:37,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:08:37,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-21 22:08:37,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash -973983478, now seen corresponding path program 1 times [2023-11-21 22:08:37,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182887576] [2023-11-21 22:08:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:08:37,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182887576] [2023-11-21 22:08:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182887576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:37,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:37,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:08:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492251826] [2023-11-21 22:08:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:37,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:38,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 455 [2023-11-21 22:08:38,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 400 transitions, 1008 flow. Second operand has 6 states, 6 states have (on average 346.6666666666667) internal successors, (2080), 6 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:38,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:08:38,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 455 [2023-11-21 22:08:38,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand