./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:57,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:57,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:50:57,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:57,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:57,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:57,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:57,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:57,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:57,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:57,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:57,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:57,803 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:57,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:57,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:57,805 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:57,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:57,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:57,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:57,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:57,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:57,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:57,810 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:50:57,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:57,811 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:57,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:57,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:57,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:57,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:57,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:57,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:57,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:57,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:57,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:57,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:57,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:57,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:57,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:57,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:57,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:57,821 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:57,822 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_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2023-11-19 07:50:58,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:58,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:58,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:58,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:58,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:58,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2023-11-19 07:51:01,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:51:01,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:51:01,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2023-11-19 07:51:01,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/data/2e804e4fc/62e7bda228e44924b4c4bb9ccb81ca1c/FLAGc2f46c873 [2023-11-19 07:51:01,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/data/2e804e4fc/62e7bda228e44924b4c4bb9ccb81ca1c [2023-11-19 07:51:01,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:51:01,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:51:01,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:51:01,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:51:01,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:51:01,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:01" (1/1) ... [2023-11-19 07:51:01,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a9abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:01, skipping insertion in model container [2023-11-19 07:51:01,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:01" (1/1) ... [2023-11-19 07:51:01,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:51:02,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:51:02,201 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:51:02,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:51:02,360 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:51:02,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02 WrapperNode [2023-11-19 07:51:02,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:51:02,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:51:02,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:51:02,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:51:02,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,460 INFO L138 Inliner]: procedures = 172, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 270 [2023-11-19 07:51:02,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:51:02,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:51:02,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:51:02,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:51:02,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:51:02,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:51:02,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:51:02,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:51:02,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (1/1) ... [2023-11-19 07:51:02,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:51:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:51:02,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:51:02,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f238ab0a-be85-4e15-8225-a47004c519f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:51:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:51:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:51:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:51:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:51:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:51:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:51:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:51:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:51:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:51:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:51:02,662 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:51:02,800 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:51:02,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:51:03,411 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:51:04,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:51:04,026 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:51:04,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:04 BoogieIcfgContainer [2023-11-19 07:51:04,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:51:04,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:51:04,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:51:04,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:51:04,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:51:01" (1/3) ... [2023-11-19 07:51:04,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e530a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:04, skipping insertion in model container [2023-11-19 07:51:04,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:02" (2/3) ... [2023-11-19 07:51:04,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e530a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:04, skipping insertion in model container [2023-11-19 07:51:04,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:04" (3/3) ... [2023-11-19 07:51:04,053 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2023-11-19 07:51:04,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:51:04,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:51:04,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-19 07:51:04,077 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:51:04,223 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:51:04,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,372 INFO L124 PetriNetUnfolderBase]: 13/151 cut-off events. [2023-11-19 07:51:04,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:51:04,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 151 events. 13/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 344 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 120. Up to 4 conditions per place. [2023-11-19 07:51:04,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,416 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:51:04,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,431 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 140 transitions, 284 flow [2023-11-19 07:51:04,494 INFO L124 PetriNetUnfolderBase]: 13/151 cut-off events. [2023-11-19 07:51:04,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:51:04,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 151 events. 13/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 344 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 120. Up to 4 conditions per place. [2023-11-19 07:51:04,501 INFO L119 LiptonReduction]: Number of co-enabled transitions 2996 [2023-11-19 07:51:35,953 WARN L293 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 110 DAG size of output: 98 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 07:51:54,605 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 07:51:59,865 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 07:52:01,918 INFO L134 LiptonReduction]: Checked pairs total: 3865 [2023-11-19 07:52:01,918 INFO L136 LiptonReduction]: Total number of compositions: 152 [2023-11-19 07:52:01,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:52:01,951 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4a70d0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:52:01,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-19 07:52:01,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:52:01,960 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-19 07:52:01,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:52:01,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:52:01,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:52:01,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:52:01,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:52:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash 959199312, now seen corresponding path program 1 times [2023-11-19 07:52:01,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:52:01,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718328215] [2023-11-19 07:52:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:52:01,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:52:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:52:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:52:02,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:52:02,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718328215] [2023-11-19 07:52:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718328215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:52:02,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:52:02,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:52:02,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824651465] [2023-11-19 07:52:02,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:52:02,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:52:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:52:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:52:02,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:52:02,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 292 [2023-11-19 07:52:02,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 42 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2023-11-19 07:52:02,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:52:02,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 292 [2023-11-19 07:52:02,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:52:02,685 INFO L124 PetriNetUnfolderBase]: 37/76 cut-off events. [2023-11-19 07:52:02,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:52:02,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 76 events. 37/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 186 event pairs, 22 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 144. Up to 76 conditions per place. [2023-11-19 07:52:02,688 INFO L140 encePairwiseOnDemand]: 271/292 looper letters, 20 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-19 07:52:02,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 86 flow [2023-11-19 07:52:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:52:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:52:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 267 transitions. [2023-11-19 07:52:02,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4571917808219178 [2023-11-19 07:52:02,724 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 267 transitions. [2023-11-19 07:52:02,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 267 transitions. [2023-11-19 07:52:02,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:52:02,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 267 transitions. [2023-11-19 07:52:02,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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) [2023-11-19 07:52:02,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 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) [2023-11-19 07:52:02,744 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 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) [2023-11-19 07:52:02,747 INFO L175 Difference]: Start difference. First operand has 38 places, 42 transitions, 88 flow. Second operand 2 states and 267 transitions. [2023-11-19 07:52:02,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 21 transitions, 86 flow [2023-11-19 07:52:02,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:52:02,753 INFO L231 Difference]: Finished difference. Result has 20 places, 21 transitions, 46 flow [2023-11-19 07:52:02,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=20, PETRI_TRANSITIONS=21} [2023-11-19 07:52:02,760 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -18 predicate places. [2023-11-19 07:52:02,760 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 21 transitions, 46 flow [2023-11-19 07:52:02,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 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) [2023-11-19 07:52:02,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:52:02,761 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:52:02,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:52:02,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:52:02,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:52:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash -329701658, now seen corresponding path program 1 times [2023-11-19 07:52:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:52:02,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554576148] [2023-11-19 07:52:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:52:02,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:52:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:52:02,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:52:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:52:02,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:52:02,894 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:52:02,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-19 07:52:02,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-19 07:52:02,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-19 07:52:02,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-19 07:52:02,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-19 07:52:02,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-19 07:52:02,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-19 07:52:02,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-19 07:52:02,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-19 07:52:02,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-19 07:52:02,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-19 07:52:02,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-19 07:52:02,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-19 07:52:02,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-19 07:52:02,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-19 07:52:02,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-19 07:52:02,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-19 07:52:02,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-19 07:52:02,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-19 07:52:02,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-19 07:52:02,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-19 07:52:02,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-19 07:52:02,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-19 07:52:02,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-19 07:52:02,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-19 07:52:02,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-19 07:52:02,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-19 07:52:02,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-19 07:52:02,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-19 07:52:02,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-19 07:52:02,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-19 07:52:02,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-19 07:52:02,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-19 07:52:02,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-19 07:52:02,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-19 07:52:02,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-19 07:52:02,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-19 07:52:02,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:52:02,922 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:52:02,931 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:52:02,932 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:52:03,147 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:52:03,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,331 INFO L124 PetriNetUnfolderBase]: 25/272 cut-off events. [2023-11-19 07:52:03,331 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:52:03,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 272 events. 25/272 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1037 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 227. Up to 6 conditions per place. [2023-11-19 07:52:03,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,345 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:52:03,346 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,346 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 248 transitions, 506 flow [2023-11-19 07:52:03,418 INFO L124 PetriNetUnfolderBase]: 25/272 cut-off events. [2023-11-19 07:52:03,418 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:52:03,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 272 events. 25/272 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1037 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 227. Up to 6 conditions per place. [2023-11-19 07:52:03,448 INFO L119 LiptonReduction]: Number of co-enabled transitions 29104