./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:56:44,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:56:44,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:56:44,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:56:44,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:56:44,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:56:44,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:56:44,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:56:44,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:56:44,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:56:44,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:56:44,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:56:44,604 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:56:44,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:56:44,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:56:44,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:56:44,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:56:44,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:56:44,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:56:44,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:56:44,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:56:44,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:56:44,610 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:56:44,611 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:56:44,612 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:56:44,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:56:44,613 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:56:44,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:56:44,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:56:44,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:56:44,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:44,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:56:44,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:56:44,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:56:44,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:56:44,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:56:44,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:56:44,620 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:56:44,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:56:44,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:56:44,622 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:56:44,622 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_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 [2023-11-06 21:56:44,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:56:44,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:56:44,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:56:44,965 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:56:44,966 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:56:44,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2023-11-06 21:56:48,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:56:48,639 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:56:48,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2023-11-06 21:56:48,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/data/9c03b5269/be1bda732ccb474cb84a2a807822f5aa/FLAG40a1be63b [2023-11-06 21:56:48,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/data/9c03b5269/be1bda732ccb474cb84a2a807822f5aa [2023-11-06 21:56:48,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:56:48,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:56:48,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:48,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:56:48,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:56:48,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:48" (1/1) ... [2023-11-06 21:56:48,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce26e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:48, skipping insertion in model container [2023-11-06 21:56:48,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:48" (1/1) ... [2023-11-06 21:56:48,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:56:49,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:49,475 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:56:49,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:49,642 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:56:49,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49 WrapperNode [2023-11-06 21:56:49,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:49,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:49,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:56:49,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:56:49,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,738 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-11-06 21:56:49,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:49,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:56:49,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:56:49,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:56:49,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:56:49,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:56:49,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:56:49,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:56:49,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (1/1) ... [2023-11-06 21:56:49,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:49,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:49,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:56:49,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:56:49,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:56:49,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:56:49,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:56:49,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:56:49,899 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:56:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:56:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:56:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:56:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:56:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:56:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:56:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:56:49,903 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:56:50,069 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:56:50,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:56:50,383 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:56:50,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:56:50,392 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:56:50,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:50 BoogieIcfgContainer [2023-11-06 21:56:50,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:56:50,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:56:50,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:56:50,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:56:50,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:48" (1/3) ... [2023-11-06 21:56:50,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d38492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:50, skipping insertion in model container [2023-11-06 21:56:50,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:49" (2/3) ... [2023-11-06 21:56:50,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d38492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:50, skipping insertion in model container [2023-11-06 21:56:50,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:50" (3/3) ... [2023-11-06 21:56:50,418 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2023-11-06 21:56:50,427 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:56:50,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:56:50,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 21:56:50,444 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:56:50,532 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:56:50,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 204 flow [2023-11-06 21:56:50,626 INFO L124 PetriNetUnfolderBase]: 0/99 cut-off events. [2023-11-06 21:56:50,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:50,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 21:56:50,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 204 flow [2023-11-06 21:56:50,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 99 transitions, 201 flow [2023-11-06 21:56:50,644 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:56:50,659 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 99 transitions, 201 flow [2023-11-06 21:56:50,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 99 transitions, 201 flow [2023-11-06 21:56:50,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 201 flow [2023-11-06 21:56:50,700 INFO L124 PetriNetUnfolderBase]: 0/99 cut-off events. [2023-11-06 21:56:50,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:50,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 21:56:50,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 2100 [2023-11-06 21:56:54,086 INFO L134 LiptonReduction]: Checked pairs total: 14013 [2023-11-06 21:56:54,086 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-11-06 21:56:54,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:56:54,111 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@591d2074, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:56:54,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 21:56:54,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:56:54,113 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:56:54,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:54,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:54,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:56:54,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:54,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:54,121 INFO L85 PathProgramCache]: Analyzing trace with hash 318, now seen corresponding path program 1 times [2023-11-06 21:56:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:54,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223126236] [2023-11-06 21:56:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:54,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:54,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:54,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223126236] [2023-11-06 21:56:54,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223126236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:54,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:54,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:56:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224429844] [2023-11-06 21:56:54,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:54,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:56:54,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:56:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:56:54,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 158 [2023-11-06 21:56:54,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:54,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 158 [2023-11-06 21:56:54,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:54,382 INFO L124 PetriNetUnfolderBase]: 35/208 cut-off events. [2023-11-06 21:56:54,382 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:54,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 208 events. 35/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 925 event pairs, 35 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 288. Up to 85 conditions per place. [2023-11-06 21:56:54,388 INFO L140 encePairwiseOnDemand]: 156/158 looper letters, 14 selfloop transitions, 0 changer transitions 0/46 dead transitions. [2023-11-06 21:56:54,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 123 flow [2023-11-06 21:56:54,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:56:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:56:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2023-11-06 21:56:54,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6772151898734177 [2023-11-06 21:56:54,404 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 214 transitions. [2023-11-06 21:56:54,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 214 transitions. [2023-11-06 21:56:54,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:54,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 214 transitions. [2023-11-06 21:56:54,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,418 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,420 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 99 flow. Second operand 2 states and 214 transitions. [2023-11-06 21:56:54,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 123 flow [2023-11-06 21:56:54,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:56:54,425 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 94 flow [2023-11-06 21:56:54,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-11-06 21:56:54,432 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-11-06 21:56:54,432 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 94 flow [2023-11-06 21:56:54,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:54,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:56:54,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:56:54,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:54,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash 302680491, now seen corresponding path program 1 times [2023-11-06 21:56:54,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:54,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999557645] [2023-11-06 21:56:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:54,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999557645] [2023-11-06 21:56:54,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999557645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:54,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:54,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:54,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636146315] [2023-11-06 21:56:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:54,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:54,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:54,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:54,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 158 [2023-11-06 21:56:54,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:54,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 158 [2023-11-06 21:56:54,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:54,697 INFO L124 PetriNetUnfolderBase]: 48/233 cut-off events. [2023-11-06 21:56:54,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:54,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 48/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1045 event pairs, 29 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 347. Up to 106 conditions per place. [2023-11-06 21:56:54,700 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 18 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-11-06 21:56:54,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 138 flow [2023-11-06 21:56:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-06 21:56:54,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6286919831223629 [2023-11-06 21:56:54,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-06 21:56:54,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-06 21:56:54,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:54,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-06 21:56:54,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,711 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 94 flow. Second operand 3 states and 298 transitions. [2023-11-06 21:56:54,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 138 flow [2023-11-06 21:56:54,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:54,714 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 104 flow [2023-11-06 21:56:54,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2023-11-06 21:56:54,717 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2023-11-06 21:56:54,718 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 104 flow [2023-11-06 21:56:54,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:54,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:54,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:54,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:56:54,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:54,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash -172592136, now seen corresponding path program 1 times [2023-11-06 21:56:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:54,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542355545] [2023-11-06 21:56:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542355545] [2023-11-06 21:56:55,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542355545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:55,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:55,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:56:55,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441855125] [2023-11-06 21:56:55,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:55,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:56:55,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 158 [2023-11-06 21:56:55,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:55,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:55,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 158 [2023-11-06 21:56:55,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:55,837 INFO L124 PetriNetUnfolderBase]: 240/755 cut-off events. [2023-11-06 21:56:55,837 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-06 21:56:55,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 755 events. 240/755 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4559 event pairs, 25 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 1319. Up to 274 conditions per place. [2023-11-06 21:56:55,850 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 71 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2023-11-06 21:56:55,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 126 transitions, 488 flow [2023-11-06 21:56:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:56:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2023-11-06 21:56:55,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6318565400843882 [2023-11-06 21:56:55,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2023-11-06 21:56:55,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2023-11-06 21:56:55,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:55,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2023-11-06 21:56:55,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:55,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:55,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:55,867 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 104 flow. Second operand 6 states and 599 transitions. [2023-11-06 21:56:55,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 126 transitions, 488 flow [2023-11-06 21:56:55,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 126 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:55,873 INFO L231 Difference]: Finished difference. Result has 60 places, 84 transitions, 340 flow [2023-11-06 21:56:55,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=60, PETRI_TRANSITIONS=84} [2023-11-06 21:56:55,875 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2023-11-06 21:56:55,879 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 84 transitions, 340 flow [2023-11-06 21:56:55,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:55,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:55,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:55,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:56:55,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:55,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:55,883 INFO L85 PathProgramCache]: Analyzing trace with hash -751493856, now seen corresponding path program 1 times [2023-11-06 21:56:55,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:55,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792703443] [2023-11-06 21:56:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:55,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:56,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792703443] [2023-11-06 21:56:56,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792703443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:56,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:56,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:56:56,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430008788] [2023-11-06 21:56:56,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:56,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:56,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:56:56,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 158 [2023-11-06 21:56:56,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 84 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:56,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 158 [2023-11-06 21:56:56,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:56,830 INFO L124 PetriNetUnfolderBase]: 452/1152 cut-off events. [2023-11-06 21:56:56,830 INFO L125 PetriNetUnfolderBase]: For 434/446 co-relation queries the response was YES. [2023-11-06 21:56:56,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 1152 events. 452/1152 cut-off events. For 434/446 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6993 event pairs, 183 based on Foata normal form. 23/1128 useless extension candidates. Maximal degree in co-relation 2909. Up to 815 conditions per place. [2023-11-06 21:56:56,843 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 99 selfloop transitions, 45 changer transitions 0/158 dead transitions. [2023-11-06 21:56:56,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 158 transitions, 888 flow [2023-11-06 21:56:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:56:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2023-11-06 21:56:56,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5854430379746836 [2023-11-06 21:56:56,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2023-11-06 21:56:56,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2023-11-06 21:56:56,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:56,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2023-11-06 21:56:56,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,855 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,855 INFO L175 Difference]: Start difference. First operand has 60 places, 84 transitions, 340 flow. Second operand 6 states and 555 transitions. [2023-11-06 21:56:56,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 158 transitions, 888 flow [2023-11-06 21:56:56,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 158 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:56,871 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 681 flow [2023-11-06 21:56:56,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=681, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2023-11-06 21:56:56,874 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2023-11-06 21:56:56,874 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 681 flow [2023-11-06 21:56:56,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:56,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:56,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:56:56,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:56,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:56,878 INFO L85 PathProgramCache]: Analyzing trace with hash -631059943, now seen corresponding path program 1 times [2023-11-06 21:56:56,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:56,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018534210] [2023-11-06 21:56:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:56,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:56,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:56,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018534210] [2023-11-06 21:56:56,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018534210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:56,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:56,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:56,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900241598] [2023-11-06 21:56:56,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:56,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:56,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:56,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:56,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 158 [2023-11-06 21:56:56,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:56,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:56,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 158 [2023-11-06 21:56:56,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:57,130 INFO L124 PetriNetUnfolderBase]: 237/811 cut-off events. [2023-11-06 21:56:57,130 INFO L125 PetriNetUnfolderBase]: For 696/750 co-relation queries the response was YES. [2023-11-06 21:56:57,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 811 events. 237/811 cut-off events. For 696/750 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5198 event pairs, 42 based on Foata normal form. 17/815 useless extension candidates. Maximal degree in co-relation 2190. Up to 250 conditions per place. [2023-11-06 21:56:57,141 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 59 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-11-06 21:56:57,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 905 flow [2023-11-06 21:56:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-06 21:56:57,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6413502109704642 [2023-11-06 21:56:57,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-06 21:56:57,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-06 21:56:57,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:57,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-06 21:56:57,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,148 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 681 flow. Second operand 3 states and 304 transitions. [2023-11-06 21:56:57,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 905 flow [2023-11-06 21:56:57,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 889 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:57,163 INFO L231 Difference]: Finished difference. Result has 70 places, 126 transitions, 675 flow [2023-11-06 21:56:57,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=70, PETRI_TRANSITIONS=126} [2023-11-06 21:56:57,164 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2023-11-06 21:56:57,164 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 126 transitions, 675 flow [2023-11-06 21:56:57,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:57,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:57,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:56:57,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:57,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1825982247, now seen corresponding path program 1 times [2023-11-06 21:56:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570771274] [2023-11-06 21:56:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:57,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:57,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570771274] [2023-11-06 21:56:57,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570771274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:57,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:57,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:56:57,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128687583] [2023-11-06 21:56:57,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:57,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:57,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:57,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:57,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:57,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 158 [2023-11-06 21:56:57,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 126 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:57,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 158 [2023-11-06 21:56:57,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:57,348 INFO L124 PetriNetUnfolderBase]: 49/223 cut-off events. [2023-11-06 21:56:57,348 INFO L125 PetriNetUnfolderBase]: For 136/142 co-relation queries the response was YES. [2023-11-06 21:56:57,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 223 events. 49/223 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 888 event pairs, 11 based on Foata normal form. 12/232 useless extension candidates. Maximal degree in co-relation 584. Up to 68 conditions per place. [2023-11-06 21:56:57,351 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 19 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2023-11-06 21:56:57,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 348 flow [2023-11-06 21:56:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-11-06 21:56:57,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6350210970464135 [2023-11-06 21:56:57,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-11-06 21:56:57,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-11-06 21:56:57,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:57,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-11-06 21:56:57,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,358 INFO L175 Difference]: Start difference. First operand has 70 places, 126 transitions, 675 flow. Second operand 3 states and 301 transitions. [2023-11-06 21:56:57,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 348 flow [2023-11-06 21:56:57,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 304 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-11-06 21:56:57,363 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 255 flow [2023-11-06 21:56:57,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-11-06 21:56:57,365 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2023-11-06 21:56:57,365 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 255 flow [2023-11-06 21:56:57,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:57,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:57,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:56:57,366 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:57,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1361619442, now seen corresponding path program 1 times [2023-11-06 21:56:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:57,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885869656] [2023-11-06 21:56:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:57,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:57,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885869656] [2023-11-06 21:56:57,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885869656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:57,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:57,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:56:57,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747569999] [2023-11-06 21:56:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:57,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:57,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:57,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:57,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:56:57,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 158 [2023-11-06 21:56:57,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:57,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 158 [2023-11-06 21:56:57,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:57,910 INFO L124 PetriNetUnfolderBase]: 141/415 cut-off events. [2023-11-06 21:56:57,910 INFO L125 PetriNetUnfolderBase]: For 125/127 co-relation queries the response was YES. [2023-11-06 21:56:57,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 415 events. 141/415 cut-off events. For 125/127 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1834 event pairs, 51 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 1062. Up to 266 conditions per place. [2023-11-06 21:56:57,915 INFO L140 encePairwiseOnDemand]: 147/158 looper letters, 69 selfloop transitions, 21 changer transitions 4/106 dead transitions. [2023-11-06 21:56:57,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 563 flow [2023-11-06 21:56:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:56:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2023-11-06 21:56:57,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5559071729957806 [2023-11-06 21:56:57,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2023-11-06 21:56:57,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2023-11-06 21:56:57,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:57,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2023-11-06 21:56:57,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,925 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 255 flow. Second operand 6 states and 527 transitions. [2023-11-06 21:56:57,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 563 flow [2023-11-06 21:56:57,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:56:57,930 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 414 flow [2023-11-06 21:56:57,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-11-06 21:56:57,931 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2023-11-06 21:56:57,931 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 414 flow [2023-11-06 21:56:57,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:57,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:57,932 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] [2023-11-06 21:56:57,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:56:57,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:57,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1291062648, now seen corresponding path program 1 times [2023-11-06 21:56:57,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:57,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203358053] [2023-11-06 21:56:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:57,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203358053] [2023-11-06 21:56:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203358053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:56:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629303847] [2023-11-06 21:56:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:58,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:56:58,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 158 [2023-11-06 21:56:58,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:58,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:58,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 158 [2023-11-06 21:56:58,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:58,846 INFO L124 PetriNetUnfolderBase]: 209/590 cut-off events. [2023-11-06 21:56:58,846 INFO L125 PetriNetUnfolderBase]: For 429/435 co-relation queries the response was YES. [2023-11-06 21:56:58,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1921 conditions, 590 events. 209/590 cut-off events. For 429/435 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2965 event pairs, 32 based on Foata normal form. 18/606 useless extension candidates. Maximal degree in co-relation 1904. Up to 284 conditions per place. [2023-11-06 21:56:58,853 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 84 selfloop transitions, 48 changer transitions 17/165 dead transitions. [2023-11-06 21:56:58,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 165 transitions, 1053 flow [2023-11-06 21:56:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:56:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-11-06 21:56:58,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6234177215189873 [2023-11-06 21:56:58,857 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-11-06 21:56:58,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-11-06 21:56:58,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:58,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-11-06 21:56:58,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:58,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:58,863 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:58,863 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 414 flow. Second operand 6 states and 591 transitions. [2023-11-06 21:56:58,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 165 transitions, 1053 flow [2023-11-06 21:56:58,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 165 transitions, 1045 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-06 21:56:58,872 INFO L231 Difference]: Finished difference. Result has 81 places, 119 transitions, 753 flow [2023-11-06 21:56:58,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=753, PETRI_PLACES=81, PETRI_TRANSITIONS=119} [2023-11-06 21:56:58,873 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2023-11-06 21:56:58,874 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 119 transitions, 753 flow [2023-11-06 21:56:58,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:58,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:58,875 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] [2023-11-06 21:56:58,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:56:58,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:58,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1381034153, now seen corresponding path program 1 times [2023-11-06 21:56:58,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:58,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412634350] [2023-11-06 21:56:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412634350] [2023-11-06 21:56:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412634350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:59,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:59,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:56:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994973210] [2023-11-06 21:56:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:59,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:56:59,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:56:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:59,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 158 [2023-11-06 21:56:59,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 119 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:59,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:59,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 158 [2023-11-06 21:56:59,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:59,742 INFO L124 PetriNetUnfolderBase]: 186/503 cut-off events. [2023-11-06 21:56:59,742 INFO L125 PetriNetUnfolderBase]: For 896/917 co-relation queries the response was YES. [2023-11-06 21:56:59,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2130 conditions, 503 events. 186/503 cut-off events. For 896/917 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2397 event pairs, 34 based on Foata normal form. 11/513 useless extension candidates. Maximal degree in co-relation 2108. Up to 321 conditions per place. [2023-11-06 21:56:59,750 INFO L140 encePairwiseOnDemand]: 151/158 looper letters, 106 selfloop transitions, 26 changer transitions 9/153 dead transitions. [2023-11-06 21:56:59,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 153 transitions, 1327 flow [2023-11-06 21:56:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:56:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:56:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2023-11-06 21:56:59,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5171790235081374 [2023-11-06 21:56:59,754 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2023-11-06 21:56:59,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2023-11-06 21:56:59,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:59,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2023-11-06 21:56:59,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:59,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:59,762 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:59,762 INFO L175 Difference]: Start difference. First operand has 81 places, 119 transitions, 753 flow. Second operand 7 states and 572 transitions. [2023-11-06 21:56:59,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 153 transitions, 1327 flow [2023-11-06 21:56:59,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 153 transitions, 1278 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-11-06 21:56:59,777 INFO L231 Difference]: Finished difference. Result has 82 places, 117 transitions, 745 flow [2023-11-06 21:56:59,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=82, PETRI_TRANSITIONS=117} [2023-11-06 21:56:59,779 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2023-11-06 21:56:59,779 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 117 transitions, 745 flow [2023-11-06 21:56:59,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:56:59,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:59,780 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] [2023-11-06 21:56:59,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:56:59,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:56:59,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1891356279, now seen corresponding path program 1 times [2023-11-06 21:56:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825367614] [2023-11-06 21:56:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:57:00,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825367614] [2023-11-06 21:57:00,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825367614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:00,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:00,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:57:00,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525614389] [2023-11-06 21:57:00,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:00,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:57:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:57:00,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:57:00,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 158 [2023-11-06 21:57:00,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 117 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:00,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:00,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 158 [2023-11-06 21:57:00,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:00,897 INFO L124 PetriNetUnfolderBase]: 182/488 cut-off events. [2023-11-06 21:57:00,898 INFO L125 PetriNetUnfolderBase]: For 830/843 co-relation queries the response was YES. [2023-11-06 21:57:00,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2133 conditions, 488 events. 182/488 cut-off events. For 830/843 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2288 event pairs, 20 based on Foata normal form. 13/500 useless extension candidates. Maximal degree in co-relation 2113. Up to 151 conditions per place. [2023-11-06 21:57:00,904 INFO L140 encePairwiseOnDemand]: 146/158 looper letters, 109 selfloop transitions, 51 changer transitions 7/182 dead transitions. [2023-11-06 21:57:00,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 182 transitions, 1512 flow [2023-11-06 21:57:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:57:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:57:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 659 transitions. [2023-11-06 21:57:00,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5958408679927667 [2023-11-06 21:57:00,908 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 659 transitions. [2023-11-06 21:57:00,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 659 transitions. [2023-11-06 21:57:00,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:00,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 659 transitions. [2023-11-06 21:57:00,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.14285714285714) internal successors, (659), 7 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:00,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:00,915 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:00,915 INFO L175 Difference]: Start difference. First operand has 82 places, 117 transitions, 745 flow. Second operand 7 states and 659 transitions. [2023-11-06 21:57:00,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 182 transitions, 1512 flow [2023-11-06 21:57:00,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 182 transitions, 1354 flow, removed 18 selfloop flow, removed 7 redundant places. [2023-11-06 21:57:00,928 INFO L231 Difference]: Finished difference. Result has 85 places, 124 transitions, 911 flow [2023-11-06 21:57:00,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=911, PETRI_PLACES=85, PETRI_TRANSITIONS=124} [2023-11-06 21:57:00,930 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2023-11-06 21:57:00,930 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 124 transitions, 911 flow [2023-11-06 21:57:00,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:00,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:00,931 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] [2023-11-06 21:57:00,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:57:00,931 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 21:57:00,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1211903839, now seen corresponding path program 1 times [2023-11-06 21:57:00,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:00,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120944458] [2023-11-06 21:57:00,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:00,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:57:00,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:57:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:57:01,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:57:01,038 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:57:01,039 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-06 21:57:01,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-06 21:57:01,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-06 21:57:01,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-06 21:57:01,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-06 21:57:01,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-06 21:57:01,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 21:57:01,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-06 21:57:01,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-06 21:57:01,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-06 21:57:01,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-06 21:57:01,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-06 21:57:01,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-06 21:57:01,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-06 21:57:01,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-06 21:57:01,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:57:01,045 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:01,054 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:57:01,054 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:57:01,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:57:01 BasicIcfg [2023-11-06 21:57:01,140 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:57:01,140 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:57:01,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:57:01,141 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:57:01,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:50" (3/4) ... [2023-11-06 21:57:01,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:57:01,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:57:01,146 INFO L158 Benchmark]: Toolchain (without parser) took 12462.00ms. Allocated memory was 123.7MB in the beginning and 226.5MB in the end (delta: 102.8MB). Free memory was 63.3MB in the beginning and 160.2MB in the end (delta: -96.9MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-11-06 21:57:01,146 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:57:01,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 957.73ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 63.0MB in the beginning and 95.1MB in the end (delta: -32.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-06 21:57:01,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.27ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 92.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:57:01,147 INFO L158 Benchmark]: Boogie Preprocessor took 40.09ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 90.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:57:01,148 INFO L158 Benchmark]: RCFGBuilder took 614.61ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 122.2MB in the end (delta: -31.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 21:57:01,149 INFO L158 Benchmark]: TraceAbstraction took 10742.22ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 122.2MB in the beginning and 160.2MB in the end (delta: -38.0MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-11-06 21:57:01,149 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 226.5MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:57:01,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 957.73ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 63.0MB in the beginning and 95.1MB in the end (delta: -32.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.27ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 92.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.09ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 90.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 614.61ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 122.2MB in the end (delta: -31.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10742.22ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 122.2MB in the beginning and 160.2MB in the end (delta: -38.0MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 226.5MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 103 PlacesBefore, 52 PlacesAfterwards, 99 TransitionsBefore, 48 TransitionsAfterwards, 2100 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 14013 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4483, independent: 3919, independent conditional: 0, independent unconditional: 3919, dependent: 564, dependent conditional: 0, dependent unconditional: 564, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 930, independent: 858, independent conditional: 0, independent unconditional: 858, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4483, independent: 3061, independent conditional: 0, independent unconditional: 3061, dependent: 492, dependent conditional: 0, dependent unconditional: 492, unknown: 930, unknown conditional: 0, unknown unconditional: 930] , Statistics on independence cache: Total cache size (in pairs): 288, Positive cache size: 244, Positive conditional cache size: 0, Positive unconditional cache size: 244, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 x = malloc(sizeof(int)) [L1236] 0 y = malloc(sizeof(int)) [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-2:0}, y={-3:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=25, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1239] 0 printf("%d\n",*x) [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-2:0}, y={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 \read(*y) VAL [\read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [*y = 8=26, arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=26, \read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1818 IncrementalHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 35 mSDtfsCounter, 1818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=10, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 21:57:01,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d8cc679-4a77-4359-beef-a1b00aceff5d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE