./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS --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 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:45:07,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:45:07,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:45:08,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:45:08,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:45:08,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:45:08,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:45:08,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:45:08,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:45:08,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:45:08,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:45:08,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:45:08,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:45:08,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:45:08,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:45:08,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:45:08,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:45:08,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:45:08,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:45:08,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:45:08,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:45:08,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:45:08,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:45:08,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:45:08,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:45:08,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:45:08,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:45:08,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:45:08,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:45:08,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:45:08,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:45:08,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:45:08,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:45:08,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:45:08,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:45:08,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:45:08,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:45:08,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:45:08,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:45:08,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:45:08,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:45:08,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 02:45:08,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:45:08,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:45:08,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:45:08,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:45:08,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:45:08,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:45:08,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:45:08,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:45:08,123 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:45:08,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:45:08,124 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:45:08,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:45:08,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:45:08,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:45:08,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:45:08,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:45:08,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:45:08,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:45:08,126 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 02:45:08,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:45:08,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:45:08,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:45:08,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:45:08,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:45:08,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:45:08,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:45:08,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:45:08,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:45:08,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:45:08,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:45:08,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:45:08,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:45:08,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:45:08,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:45:08,130 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:45:08,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:45:08,130 INFO L138 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_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-11-23 02:45:08,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:45:08,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:45:08,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:45:08,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:45:08,404 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:45:08,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 02:45:11,476 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:45:11,812 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:45:11,813 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 02:45:11,826 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/d8c3f5647/a84d1f8972b04878b101a5498ecfc403/FLAG936879abf [2022-11-23 02:45:11,841 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/d8c3f5647/a84d1f8972b04878b101a5498ecfc403 [2022-11-23 02:45:11,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:45:11,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:45:11,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:45:11,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:45:11,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:45:11,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:11" (1/1) ... [2022-11-23 02:45:11,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac98252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:11, skipping insertion in model container [2022-11-23 02:45:11,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:11" (1/1) ... [2022-11-23 02:45:11,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:45:11,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:45:12,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 02:45:12,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:45:12,314 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:45:12,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 02:45:12,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:45:12,423 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:45:12,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12 WrapperNode [2022-11-23 02:45:12,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:45:12,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:45:12,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:45:12,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:45:12,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,507 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-11-23 02:45:12,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:45:12,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:45:12,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:45:12,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:45:12,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:45:12,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:45:12,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:45:12,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:45:12,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (1/1) ... [2022-11-23 02:45:12,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:45:12,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:45:12,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:45:12,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:45:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:45:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 02:45:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 02:45:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 02:45:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 02:45:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:45:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:45:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:45:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:45:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:45:12,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:45:12,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:45:12,673 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:45:12,809 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:45:12,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:45:13,491 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:45:13,913 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:45:13,914 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 02:45:13,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:13 BoogieIcfgContainer [2022-11-23 02:45:13,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:45:13,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:45:13,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:45:13,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:45:13,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:45:11" (1/3) ... [2022-11-23 02:45:13,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79526525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:13, skipping insertion in model container [2022-11-23 02:45:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:12" (2/3) ... [2022-11-23 02:45:13,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79526525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:13, skipping insertion in model container [2022-11-23 02:45:13,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:13" (3/3) ... [2022-11-23 02:45:13,929 INFO L112 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-11-23 02:45:13,939 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:45:13,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:45:13,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 02:45:13,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:45:14,040 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:45:14,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-11-23 02:45:14,160 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-23 02:45:14,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:45:14,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 316 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-11-23 02:45:14,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 226 flow [2022-11-23 02:45:14,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 222 flow [2022-11-23 02:45:14,179 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:45:14,194 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 107 transitions, 222 flow [2022-11-23 02:45:14,197 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 107 transitions, 222 flow [2022-11-23 02:45:14,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 222 flow [2022-11-23 02:45:14,280 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-23 02:45:14,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:45:14,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 317 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-11-23 02:45:14,287 INFO L119 LiptonReduction]: Number of co-enabled transitions 4188 [2022-11-23 02:48:16,194 INFO L134 LiptonReduction]: Checked pairs total: 12306 [2022-11-23 02:48:16,194 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-11-23 02:48:16,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:48:16,218 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;@edb8fbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:48:16,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-23 02:48:16,221 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 02:48:16,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:48:16,222 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:16,222 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:48:16,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:48:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash 32689636, now seen corresponding path program 1 times [2022-11-23 02:48:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:16,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300399213] [2022-11-23 02:48:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:16,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:16,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:16,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300399213] [2022-11-23 02:48:16,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300399213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:16,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:16,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:48:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957066000] [2022-11-23 02:48:16,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:16,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:48:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:16,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:48:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:48:16,549 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 237 [2022-11-23 02:48:16,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 114 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 02:48:16,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:16,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 237 [2022-11-23 02:48:16,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:16,902 INFO L130 PetriNetUnfolder]: 258/438 cut-off events. [2022-11-23 02:48:16,902 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:48:16,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 438 events. 258/438 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1812 event pairs, 213 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 878. Up to 421 conditions per place. [2022-11-23 02:48:16,907 INFO L137 encePairwiseOnDemand]: 210/237 looper letters, 19 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2022-11-23 02:48:16,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 98 flow [2022-11-23 02:48:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:48:16,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:48:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2022-11-23 02:48:16,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3670886075949367 [2022-11-23 02:48:16,922 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 174 transitions. [2022-11-23 02:48:16,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 174 transitions. [2022-11-23 02:48:16,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:16,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 174 transitions. [2022-11-23 02:48:16,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2022-11-23 02:48:16,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2022-11-23 02:48:16,934 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2022-11-23 02:48:16,936 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 114 flow. Second operand 2 states and 174 transitions. [2022-11-23 02:48:16,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 98 flow [2022-11-23 02:48:16,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:48:16,941 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 59 flow [2022-11-23 02:48:16,943 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=59, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2022-11-23 02:48:16,949 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -26 predicate places. [2022-11-23 02:48:16,950 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 59 flow [2022-11-23 02:48:16,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 02:48:16,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:16,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:48:16,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:48:16,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:48:16,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1013380688, now seen corresponding path program 1 times [2022-11-23 02:48:16,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:16,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156935669] [2022-11-23 02:48:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:16,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:17,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:17,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156935669] [2022-11-23 02:48:17,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156935669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:17,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:17,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:48:17,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094900252] [2022-11-23 02:48:17,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:48:17,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:48:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:48:17,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 237 [2022-11-23 02:48:17,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:17,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:17,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 237 [2022-11-23 02:48:17,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:17,611 INFO L130 PetriNetUnfolder]: 543/940 cut-off events. [2022-11-23 02:48:17,611 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 02:48:17,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 940 events. 543/940 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4408 event pairs, 110 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 1870. Up to 493 conditions per place. [2022-11-23 02:48:17,619 INFO L137 encePairwiseOnDemand]: 227/237 looper letters, 34 selfloop transitions, 8 changer transitions 0/45 dead transitions. [2022-11-23 02:48:17,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 45 transitions, 184 flow [2022-11-23 02:48:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:48:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:48:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-23 02:48:17,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3066104078762307 [2022-11-23 02:48:17,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-23 02:48:17,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-23 02:48:17,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:17,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-23 02:48:17,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2022-11-23 02:48:17,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2022-11-23 02:48:17,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2022-11-23 02:48:17,635 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 59 flow. Second operand 3 states and 218 transitions. [2022-11-23 02:48:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 45 transitions, 184 flow [2022-11-23 02:48:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:48:17,637 INFO L231 Difference]: Finished difference. Result has 34 places, 34 transitions, 127 flow [2022-11-23 02:48:17,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=34, PETRI_TRANSITIONS=34} [2022-11-23 02:48:17,638 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -22 predicate places. [2022-11-23 02:48:17,638 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 34 transitions, 127 flow [2022-11-23 02:48:17,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:17,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:17,639 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:17,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:48:17,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:48:17,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2084771988, now seen corresponding path program 1 times [2022-11-23 02:48:17,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:17,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195571736] [2022-11-23 02:48:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:17,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:48:17,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:48:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:48:17,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:48:17,751 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:48:17,752 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-11-23 02:48:17,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-11-23 02:48:17,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-11-23 02:48:17,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-11-23 02:48:17,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-11-23 02:48:17,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-11-23 02:48:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-11-23 02:48:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-11-23 02:48:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-11-23 02:48:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-11-23 02:48:17,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-11-23 02:48:17,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-11-23 02:48:17,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-11-23 02:48:17,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-11-23 02:48:17,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-11-23 02:48:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-11-23 02:48:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-11-23 02:48:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-11-23 02:48:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-11-23 02:48:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-11-23 02:48:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-11-23 02:48:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-11-23 02:48:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-11-23 02:48:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-11-23 02:48:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-11-23 02:48:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-11-23 02:48:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-11-23 02:48:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-11-23 02:48:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-11-23 02:48:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-11-23 02:48:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-11-23 02:48:17,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-11-23 02:48:17,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-11-23 02:48:17,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-11-23 02:48:17,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-11-23 02:48:17,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-11-23 02:48:17,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-11-23 02:48:17,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-11-23 02:48:17,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-11-23 02:48:17,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-11-23 02:48:17,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-11-23 02:48:17,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-11-23 02:48:17,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-11-23 02:48:17,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-11-23 02:48:17,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:48:17,777 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 02:48:17,781 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 02:48:17,781 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 02:48:17,858 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:48:17,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 176 transitions, 376 flow [2022-11-23 02:48:17,893 INFO L130 PetriNetUnfolder]: 9/168 cut-off events. [2022-11-23 02:48:17,893 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:48:17,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2022-11-23 02:48:17,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 176 transitions, 376 flow [2022-11-23 02:48:17,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 303 flow [2022-11-23 02:48:17,898 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:48:17,898 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 144 transitions, 303 flow [2022-11-23 02:48:17,899 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 144 transitions, 303 flow [2022-11-23 02:48:17,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 144 transitions, 303 flow [2022-11-23 02:48:17,928 INFO L130 PetriNetUnfolder]: 9/168 cut-off events. [2022-11-23 02:48:17,928 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:48:17,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 551 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 151. Up to 6 conditions per place. [2022-11-23 02:48:17,935 INFO L119 LiptonReduction]: Number of co-enabled transitions 10080 [2022-11-23 02:50:53,514 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-23 02:50:53,519 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:141) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation.isIndependent(UnionIndependenceRelation.java:73) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.CachedIndependenceRelation.isIndependent(CachedIndependenceRelation.java:113) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$0(LiptonReduction.java:454) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1642) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isLeftMover(LiptonReduction.java:454) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:409) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:312) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:129) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 49 more [2022-11-23 02:50:53,523 INFO L158 Benchmark]: Toolchain (without parser) took 341677.16ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 123.9MB in the beginning and 93.0MB in the end (delta: 30.9MB). Peak memory consumption was 141.6MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,523 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:50:53,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.08ms. Allocated memory is still 155.2MB. Free memory was 123.4MB in the beginning and 103.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.37ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,524 INFO L158 Benchmark]: Boogie Preprocessor took 64.74ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 96.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,524 INFO L158 Benchmark]: RCFGBuilder took 1339.76ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 83.8MB in the end (delta: 12.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-23 02:50:53,525 INFO L158 Benchmark]: TraceAbstraction took 339601.65ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 83.0MB in the beginning and 93.0MB in the end (delta: -10.0MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2022-11-23 02:50:53,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.08ms. Allocated memory is still 155.2MB. Free memory was 123.4MB in the beginning and 103.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.37ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.74ms. Allocated memory is still 155.2MB. Free memory was 100.0MB in the beginning and 96.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1339.76ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 83.8MB in the end (delta: 12.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 339601.65ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 83.0MB in the beginning and 93.0MB in the end (delta: -10.0MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 182.0s, 107 PlacesBefore, 56 PlacesAfterwards, 107 TransitionsBefore, 53 TransitionsAfterwards, 4188 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 129 TotalNumberOfCompositions, 12306 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6834, independent: 6603, independent conditional: 0, independent unconditional: 6603, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3242, independent: 3184, independent conditional: 0, independent unconditional: 3184, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3242, independent: 2693, independent conditional: 0, independent unconditional: 2693, dependent: 549, dependent conditional: 0, dependent unconditional: 549, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 549, independent: 491, independent conditional: 0, independent unconditional: 491, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , SemanticIndependenceRelation.Query Time [ms]: [ total: 168325, independent: 1202, independent conditional: 0, independent unconditional: 1202, dependent: 479, dependent conditional: 0, dependent unconditional: 479, unknown: 166645, unknown conditional: 0, unknown unconditional: 166645] ], Cache Queries: [ total: 6834, independent: 3419, independent conditional: 0, independent unconditional: 3419, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 3296, unknown conditional: 0, unknown unconditional: 3296] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 377, Positive conditional cache size: 0, Positive unconditional cache size: 377, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 9, Unknown conditional cache size: 0, Unknown unconditional cache size: 9 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS --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 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:50:55,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:50:55,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:50:55,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:50:55,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:50:55,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:50:55,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:50:55,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:50:55,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:50:55,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:50:55,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:50:55,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:50:55,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:50:55,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:50:55,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:50:55,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:50:55,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:50:55,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:50:55,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:50:55,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:50:55,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:50:55,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:50:55,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:50:55,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:50:55,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:50:55,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:50:55,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:50:55,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:50:55,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:50:55,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:50:55,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:50:55,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:50:55,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:50:55,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:50:55,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:50:55,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:50:55,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:50:55,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:50:55,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:50:55,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:50:55,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:50:55,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2022-11-23 02:50:55,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:50:55,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:50:55,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:50:55,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:50:55,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:50:55,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:50:55,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:50:55,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:50:55,957 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:50:55,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:50:55,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:50:55,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:50:55,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:50:55,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:50:55,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:50:55,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:50:55,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:50:55,959 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 02:50:55,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 02:50:55,960 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 02:50:55,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:50:55,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:50:55,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:50:55,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:50:55,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:50:55,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:50:55,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:50:55,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:50:55,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:50:55,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:50:55,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:50:55,963 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 02:50:55,963 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 02:50:55,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:50:55,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:50:55,964 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:50:55,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:50:55,964 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 02:50:55,964 INFO L138 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_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-11-23 02:50:56,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:50:56,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:50:56,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:50:56,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:50:56,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:50:56,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 02:50:59,622 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:50:59,991 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:50:59,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-23 02:51:00,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/cff3306d0/27c7e1c021f341d8b908e288b9e35a77/FLAG51750fbff [2022-11-23 02:51:00,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/data/cff3306d0/27c7e1c021f341d8b908e288b9e35a77 [2022-11-23 02:51:00,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:51:00,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:51:00,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:51:00,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:51:00,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:51:00,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495bfc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00, skipping insertion in model container [2022-11-23 02:51:00,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:51:00,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:51:00,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 02:51:00,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:51:00,569 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:51:00,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-23 02:51:00,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:51:00,670 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:51:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00 WrapperNode [2022-11-23 02:51:00,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:51:00,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:51:00,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:51:00,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:51:00,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,731 INFO L138 Inliner]: procedures = 179, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-11-23 02:51:00,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:51:00,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:51:00,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:51:00,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:51:00,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:51:00,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:51:00,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:51:00,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:51:00,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (1/1) ... [2022-11-23 02:51:00,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:51:00,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:51:00,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:51:00,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:51:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 02:51:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 02:51:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 02:51:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 02:51:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 02:51:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:51:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:51:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:51:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 02:51:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 02:51:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-23 02:51:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:51:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:51:00,905 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:51:01,051 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:51:01,053 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:51:01,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:51:02,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:51:02,347 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 02:51:02,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:02 BoogieIcfgContainer [2022-11-23 02:51:02,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:51:02,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:51:02,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:51:02,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:51:02,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:51:00" (1/3) ... [2022-11-23 02:51:02,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c5c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:02, skipping insertion in model container [2022-11-23 02:51:02,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:00" (2/3) ... [2022-11-23 02:51:02,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c5c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:02, skipping insertion in model container [2022-11-23 02:51:02,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:02" (3/3) ... [2022-11-23 02:51:02,360 INFO L112 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-11-23 02:51:02,370 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:51:02,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:51:02,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 02:51:02,381 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:51:02,523 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:51:02,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-11-23 02:51:02,656 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-23 02:51:02,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:02,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 324 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2022-11-23 02:51:02,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 226 flow [2022-11-23 02:51:02,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 222 flow [2022-11-23 02:51:02,671 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:51:02,696 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 107 transitions, 222 flow [2022-11-23 02:51:02,701 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 107 transitions, 222 flow [2022-11-23 02:51:02,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 222 flow [2022-11-23 02:51:02,771 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-23 02:51:02,773 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:51:02,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 328 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2022-11-23 02:51:02,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 4100 [2022-11-23 02:51:11,591 WARN L233 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 60 DAG size of output: 54 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:51:39,363 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:51:45,471 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:52:11,212 INFO L134 LiptonReduction]: Checked pairs total: 11272 [2022-11-23 02:52:11,212 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-11-23 02:52:11,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:52:11,234 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;@8978fa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:52:11,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-23 02:52:11,239 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 02:52:11,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:52:11,239 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:52:11,241 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:52:11,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:52:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:52:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash 32748227, now seen corresponding path program 1 times [2022-11-23 02:52:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:52:11,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390892752] [2022-11-23 02:52:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:52:11,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:11,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:52:11,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:52:11,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 02:52:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:52:11,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 02:52:11,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:52:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:52:11,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:52:11,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:52:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390892752] [2022-11-23 02:52:11,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390892752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:52:11,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:52:11,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:52:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518971184] [2022-11-23 02:52:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:52:11,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:52:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:52:11,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:52:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:52:11,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 237 [2022-11-23 02:52:11,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 114 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 02:52:11,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:52:11,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 237 [2022-11-23 02:52:11,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:52:11,748 INFO L130 PetriNetUnfolder]: 258/430 cut-off events. [2022-11-23 02:52:11,748 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:52:11,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 430 events. 258/430 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1746 event pairs, 213 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 862. Up to 421 conditions per place. [2022-11-23 02:52:11,754 INFO L137 encePairwiseOnDemand]: 210/237 looper letters, 19 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2022-11-23 02:52:11,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 98 flow [2022-11-23 02:52:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:52:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:52:11,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2022-11-23 02:52:11,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3670886075949367 [2022-11-23 02:52:11,774 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 174 transitions. [2022-11-23 02:52:11,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 174 transitions. [2022-11-23 02:52:11,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:52:11,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 174 transitions. [2022-11-23 02:52:11,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2022-11-23 02:52:11,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2022-11-23 02:52:11,788 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2022-11-23 02:52:11,790 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 114 flow. Second operand 2 states and 174 transitions. [2022-11-23 02:52:11,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 98 flow [2022-11-23 02:52:11,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:52:11,807 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 59 flow [2022-11-23 02:52:11,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=59, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2022-11-23 02:52:11,813 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -26 predicate places. [2022-11-23 02:52:11,813 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 59 flow [2022-11-23 02:52:11,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2022-11-23 02:52:11,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:52:11,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:52:11,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:52:12,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:12,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:52:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:52:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1015196946, now seen corresponding path program 1 times [2022-11-23 02:52:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:52:12,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861693915] [2022-11-23 02:52:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:52:12,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:12,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:52:12,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:52:12,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 02:52:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:52:12,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:52:12,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:52:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:52:12,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:52:12,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:52:12,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861693915] [2022-11-23 02:52:12,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861693915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:52:12,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:52:12,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:52:12,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621214346] [2022-11-23 02:52:12,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:52:12,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:52:12,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:52:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:52:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:52:12,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 237 [2022-11-23 02:52:12,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:52:12,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:52:12,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 237 [2022-11-23 02:52:12,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:52:12,528 INFO L130 PetriNetUnfolder]: 543/924 cut-off events. [2022-11-23 02:52:12,529 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 02:52:12,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 924 events. 543/924 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4172 event pairs, 110 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 1838. Up to 493 conditions per place. [2022-11-23 02:52:12,536 INFO L137 encePairwiseOnDemand]: 227/237 looper letters, 34 selfloop transitions, 8 changer transitions 0/45 dead transitions. [2022-11-23 02:52:12,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 45 transitions, 184 flow [2022-11-23 02:52:12,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:52:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:52:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-11-23 02:52:12,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3066104078762307 [2022-11-23 02:52:12,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2022-11-23 02:52:12,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2022-11-23 02:52:12,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:52:12,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2022-11-23 02:52:12,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2022-11-23 02:52:12,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2022-11-23 02:52:12,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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) [2022-11-23 02:52:12,545 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 59 flow. Second operand 3 states and 218 transitions. [2022-11-23 02:52:12,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 45 transitions, 184 flow [2022-11-23 02:52:12,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:52:12,547 INFO L231 Difference]: Finished difference. Result has 34 places, 34 transitions, 127 flow [2022-11-23 02:52:12,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=34, PETRI_TRANSITIONS=34} [2022-11-23 02:52:12,547 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -22 predicate places. [2022-11-23 02:52:12,548 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 34 transitions, 127 flow [2022-11-23 02:52:12,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:52:12,548 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:52:12,548 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:52:12,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:52:12,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:12,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-23 02:52:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:52:12,783 INFO L85 PathProgramCache]: Analyzing trace with hash 386045746, now seen corresponding path program 1 times [2022-11-23 02:52:12,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:52:12,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170725673] [2022-11-23 02:52:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:52:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:52:12,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:52:12,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 02:52:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:52:12,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:52:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:52:12,967 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 02:52:12,968 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:52:12,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-11-23 02:52:12,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-11-23 02:52:12,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-11-23 02:52:12,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-11-23 02:52:12,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-11-23 02:52:12,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-11-23 02:52:12,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-11-23 02:52:12,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-11-23 02:52:12,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-11-23 02:52:12,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-11-23 02:52:12,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-11-23 02:52:12,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-11-23 02:52:12,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-11-23 02:52:12,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-11-23 02:52:12,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-11-23 02:52:12,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-11-23 02:52:12,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-11-23 02:52:12,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-11-23 02:52:12,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-11-23 02:52:12,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-11-23 02:52:12,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-11-23 02:52:12,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-11-23 02:52:12,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-11-23 02:52:12,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-11-23 02:52:12,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-11-23 02:52:12,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-11-23 02:52:12,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-11-23 02:52:12,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-11-23 02:52:12,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-11-23 02:52:12,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-11-23 02:52:12,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-11-23 02:52:12,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-11-23 02:52:12,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-11-23 02:52:12,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-11-23 02:52:12,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-11-23 02:52:12,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-11-23 02:52:12,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-11-23 02:52:12,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-11-23 02:52:12,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-11-23 02:52:12,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-11-23 02:52:12,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-11-23 02:52:12,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-11-23 02:52:12,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-11-23 02:52:12,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-11-23 02:52:12,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-11-23 02:52:12,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-11-23 02:52:12,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-11-23 02:52:12,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-11-23 02:52:12,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-11-23 02:52:12,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-11-23 02:52:12,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-11-23 02:52:12,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-11-23 02:52:12,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-11-23 02:52:12,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-11-23 02:52:13,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:52:13,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:52:13,228 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 02:52:13,229 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 02:52:13,230 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 02:52:13,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:52:13,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 175 transitions, 374 flow [2022-11-23 02:52:13,444 INFO L130 PetriNetUnfolder]: 9/167 cut-off events. [2022-11-23 02:52:13,444 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:52:13,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 167 events. 9/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 538 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 176. Up to 6 conditions per place. [2022-11-23 02:52:13,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 175 transitions, 374 flow [2022-11-23 02:52:13,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 143 transitions, 301 flow [2022-11-23 02:52:13,451 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:52:13,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 143 transitions, 301 flow [2022-11-23 02:52:13,451 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 143 transitions, 301 flow [2022-11-23 02:52:13,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 143 transitions, 301 flow [2022-11-23 02:52:13,484 INFO L130 PetriNetUnfolder]: 9/167 cut-off events. [2022-11-23 02:52:13,484 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:52:13,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 167 events. 9/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 540 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 149. Up to 6 conditions per place. [2022-11-23 02:52:13,492 INFO L119 LiptonReduction]: Number of co-enabled transitions 9760 [2022-11-23 02:52:53,490 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 67 DAG size of output: 59 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:53:30,207 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 63 DAG size of output: 58 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:53:51,123 INFO L134 LiptonReduction]: Checked pairs total: 36969 [2022-11-23 02:53:51,123 INFO L136 LiptonReduction]: Total number of compositions: 187 [2022-11-23 02:53:51,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:53:51,126 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;@8978fa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:53:51,127 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-11-23 02:53:51,128 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 02:53:51,129 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:53:51,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:53:51,129 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:53:51,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 02:53:51,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:51,130 INFO L85 PathProgramCache]: Analyzing trace with hash 45835433, now seen corresponding path program 1 times [2022-11-23 02:53:51,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:53:51,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698071244] [2022-11-23 02:53:51,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:51,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:51,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:53:51,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:53:51,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 02:53:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:53:51,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 02:53:51,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:53:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:53:51,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:53:51,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:53:51,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698071244] [2022-11-23 02:53:51,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698071244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:53:51,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:53:51,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:53:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371904340] [2022-11-23 02:53:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:53:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:53:51,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:53:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:53:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:53:51,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 362 [2022-11-23 02:53:51,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 173 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2022-11-23 02:53:51,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:53:51,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 362 [2022-11-23 02:53:51,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:53:52,250 INFO L130 PetriNetUnfolder]: 1775/2609 cut-off events. [2022-11-23 02:53:52,251 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-11-23 02:53:52,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5312 conditions, 2609 events. 1775/2609 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 14199 event pairs, 1458 based on Foata normal form. 0/2347 useless extension candidates. Maximal degree in co-relation 5301. Up to 2511 conditions per place. [2022-11-23 02:53:52,292 INFO L137 encePairwiseOnDemand]: 319/362 looper letters, 26 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2022-11-23 02:53:52,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 139 flow [2022-11-23 02:53:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:53:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:53:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 247 transitions. [2022-11-23 02:53:52,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3411602209944751 [2022-11-23 02:53:52,301 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 247 transitions. [2022-11-23 02:53:52,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 247 transitions. [2022-11-23 02:53:52,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:53:52,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 247 transitions. [2022-11-23 02:53:52,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2022-11-23 02:53:52,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 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) [2022-11-23 02:53:52,308 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 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) [2022-11-23 02:53:52,309 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 173 flow. Second operand 2 states and 247 transitions. [2022-11-23 02:53:52,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 139 flow [2022-11-23 02:53:52,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 136 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-23 02:53:52,312 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 84 flow [2022-11-23 02:53:52,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=84, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2022-11-23 02:53:52,315 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, -42 predicate places. [2022-11-23 02:53:52,316 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 84 flow [2022-11-23 02:53:52,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2022-11-23 02:53:52,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:53:52,316 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:53:52,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:53:52,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:52,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 02:53:52,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:52,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1420901570, now seen corresponding path program 1 times [2022-11-23 02:53:52,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:53:52,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937009811] [2022-11-23 02:53:52,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:52,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:52,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:53:52,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:53:52,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 02:53:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:53:52,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:53:52,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:53:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:53:52,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:53:52,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:53:52,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937009811] [2022-11-23 02:53:52,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937009811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:53:52,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:53:52,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:53:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992291543] [2022-11-23 02:53:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:53:52,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:53:52,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:53:52,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:53:52,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:53:52,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 362 [2022-11-23 02:53:52,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:52,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:53:52,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 362 [2022-11-23 02:53:52,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:53:54,336 INFO L130 PetriNetUnfolder]: 4734/7114 cut-off events. [2022-11-23 02:53:54,336 INFO L131 PetriNetUnfolder]: For 292/292 co-relation queries the response was YES. [2022-11-23 02:53:54,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14178 conditions, 7114 events. 4734/7114 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 44725 event pairs, 1463 based on Foata normal form. 0/6395 useless extension candidates. Maximal degree in co-relation 14173. Up to 3902 conditions per place. [2022-11-23 02:53:54,387 INFO L137 encePairwiseOnDemand]: 348/362 looper letters, 44 selfloop transitions, 12 changer transitions 0/62 dead transitions. [2022-11-23 02:53:54,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 62 transitions, 256 flow [2022-11-23 02:53:54,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:53:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:53:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2022-11-23 02:53:54,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.26611418047882135 [2022-11-23 02:53:54,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2022-11-23 02:53:54,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2022-11-23 02:53:54,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:53:54,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2022-11-23 02:53:54,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-23 02:53:54,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-23 02:53:54,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-23 02:53:54,398 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 84 flow. Second operand 3 states and 289 transitions. [2022-11-23 02:53:54,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 62 transitions, 256 flow [2022-11-23 02:53:54,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:53:54,402 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 184 flow [2022-11-23 02:53:54,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2022-11-23 02:53:54,404 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, -38 predicate places. [2022-11-23 02:53:54,404 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 184 flow [2022-11-23 02:53:54,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:54,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:53:54,405 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:53:54,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:53:54,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:54,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 02:53:54,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:54,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1207401952, now seen corresponding path program 1 times [2022-11-23 02:53:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:53:54,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282362386] [2022-11-23 02:53:54,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:54,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:53:54,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:53:54,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 02:53:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:53:54,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:53:54,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:53:54,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:53:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:53:54,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:53:54,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:53:54,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282362386] [2022-11-23 02:53:54,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282362386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:53:54,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:53:54,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:53:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114153708] [2022-11-23 02:53:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:53:54,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:53:54,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:53:54,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:53:54,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:53:54,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 362 [2022-11-23 02:53:54,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-11-23 02:53:54,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:53:54,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 362 [2022-11-23 02:53:54,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:53:56,824 INFO L130 PetriNetUnfolder]: 5933/9641 cut-off events. [2022-11-23 02:53:56,824 INFO L131 PetriNetUnfolder]: For 5247/5358 co-relation queries the response was YES. [2022-11-23 02:53:56,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25261 conditions, 9641 events. 5933/9641 cut-off events. For 5247/5358 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 69022 event pairs, 1348 based on Foata normal form. 208/9110 useless extension candidates. Maximal degree in co-relation 25254. Up to 5471 conditions per place. [2022-11-23 02:53:56,925 INFO L137 encePairwiseOnDemand]: 352/362 looper letters, 55 selfloop transitions, 11 changer transitions 0/78 dead transitions. [2022-11-23 02:53:56,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 438 flow [2022-11-23 02:53:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:53:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:53:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2022-11-23 02:53:56,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.28084714548802947 [2022-11-23 02:53:56,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2022-11-23 02:53:56,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2022-11-23 02:53:56,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:53:56,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2022-11-23 02:53:56,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-11-23 02:53:56,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-23 02:53:56,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-23 02:53:56,936 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 184 flow. Second operand 3 states and 305 transitions. [2022-11-23 02:53:56,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 438 flow [2022-11-23 02:53:56,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 78 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:53:56,964 INFO L231 Difference]: Finished difference. Result has 46 places, 55 transitions, 221 flow [2022-11-23 02:53:56,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=46, PETRI_TRANSITIONS=55} [2022-11-23 02:53:56,965 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, -37 predicate places. [2022-11-23 02:53:56,966 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 55 transitions, 221 flow [2022-11-23 02:53:56,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-11-23 02:53:56,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:53:56,966 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:53:56,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:53:57,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:57,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-23 02:53:57,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1203707961, now seen corresponding path program 1 times [2022-11-23 02:53:57,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:53:57,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368474407] [2022-11-23 02:53:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:53:57,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:53:57,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 02:53:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:53:57,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:53:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:53:57,382 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 02:53:57,383 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:53:57,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-11-23 02:53:57,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-11-23 02:53:57,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-11-23 02:53:57,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-11-23 02:53:57,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-11-23 02:53:57,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-11-23 02:53:57,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-11-23 02:53:57,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-11-23 02:53:57,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-11-23 02:53:57,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-11-23 02:53:57,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-11-23 02:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-11-23 02:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-11-23 02:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-11-23 02:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-11-23 02:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-11-23 02:53:57,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-11-23 02:53:57,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-11-23 02:53:57,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-11-23 02:53:57,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-11-23 02:53:57,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-11-23 02:53:57,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-11-23 02:53:57,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-11-23 02:53:57,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-11-23 02:53:57,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-11-23 02:53:57,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-11-23 02:53:57,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-11-23 02:53:57,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 80 remaining) [2022-11-23 02:53:57,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 80 remaining) [2022-11-23 02:53:57,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-11-23 02:53:57,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-11-23 02:53:57,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-11-23 02:53:57,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-11-23 02:53:57,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-11-23 02:53:57,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-11-23 02:53:57,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-11-23 02:53:57,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-11-23 02:53:57,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-11-23 02:53:57,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-11-23 02:53:57,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-11-23 02:53:57,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-11-23 02:53:57,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-11-23 02:53:57,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-11-23 02:53:57,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-11-23 02:53:57,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-11-23 02:53:57,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 80 remaining) [2022-11-23 02:53:57,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 80 remaining) [2022-11-23 02:53:57,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (32 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-11-23 02:53:57,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-11-23 02:53:57,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-11-23 02:53:57,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-11-23 02:53:57,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-11-23 02:53:57,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-11-23 02:53:57,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-11-23 02:53:57,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-11-23 02:53:57,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-11-23 02:53:57,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:53:57,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:53:57,603 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 02:53:57,607 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-23 02:53:57,608 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:53:57,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:53:57 BasicIcfg [2022-11-23 02:53:57,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:53:57,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:53:57,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:53:57,642 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:53:57,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:02" (3/4) ... [2022-11-23 02:53:57,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:53:57,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:53:57,646 INFO L158 Benchmark]: Toolchain (without parser) took 177606.35ms. Allocated memory was 69.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 46.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 193.2MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,647 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:53:57,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.79ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 46.7MB in the beginning and 71.9MB in the end (delta: -25.2MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.61ms. Allocated memory is still 94.4MB. Free memory was 71.9MB in the beginning and 68.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,648 INFO L158 Benchmark]: Boogie Preprocessor took 79.93ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 64.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,648 INFO L158 Benchmark]: RCFGBuilder took 1536.86ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 40.2MB in the end (delta: 24.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,649 INFO L158 Benchmark]: TraceAbstraction took 175289.84ms. Allocated memory was 94.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 40.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 162.4MB. Max. memory is 16.1GB. [2022-11-23 02:53:57,649 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 1.4GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:53:57,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.79ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 46.7MB in the beginning and 71.9MB in the end (delta: -25.2MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.61ms. Allocated memory is still 94.4MB. Free memory was 71.9MB in the beginning and 68.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.93ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 64.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1536.86ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 40.2MB in the end (delta: 24.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * TraceAbstraction took 175289.84ms. Allocated memory was 94.4MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 40.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 162.4MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 1.4GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.5s, 107 PlacesBefore, 56 PlacesAfterwards, 107 TransitionsBefore, 53 TransitionsAfterwards, 4100 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 129 TotalNumberOfCompositions, 11272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6311, independent: 6110, independent conditional: 0, independent unconditional: 6110, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3139, independent: 3082, independent conditional: 0, independent unconditional: 3082, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3139, independent: 2613, independent conditional: 0, independent unconditional: 2613, dependent: 526, dependent conditional: 0, dependent unconditional: 526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 526, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36554, independent: 1251, independent conditional: 0, independent unconditional: 1251, dependent: 7969, dependent conditional: 0, dependent unconditional: 7969, unknown: 27334, unknown conditional: 0, unknown unconditional: 27334] ], Cache Queries: [ total: 6311, independent: 3028, independent conditional: 0, independent unconditional: 3028, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 3161, unknown conditional: 0, unknown unconditional: 3161] , Statistics on independence cache: Total cache size (in pairs): 397, Positive cache size: 371, Positive conditional cache size: 0, Positive unconditional cache size: 371, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 5, Unknown conditional cache size: 0, Unknown unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.7s, 144 PlacesBefore, 83 PlacesAfterwards, 143 TransitionsBefore, 79 TransitionsAfterwards, 9760 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 145 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 187 TotalNumberOfCompositions, 36969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19689, independent: 19298, independent conditional: 0, independent unconditional: 19298, dependent: 334, dependent conditional: 0, dependent unconditional: 334, unknown: 57, unknown conditional: 0, unknown unconditional: 57] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7779, independent: 7690, independent conditional: 0, independent unconditional: 7690, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7779, independent: 6340, independent conditional: 0, independent unconditional: 6340, dependent: 1439, dependent conditional: 0, dependent unconditional: 1439, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1439, independent: 1350, independent conditional: 0, independent unconditional: 1350, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36441, independent: 2610, independent conditional: 0, independent unconditional: 2610, dependent: 6647, dependent conditional: 0, dependent unconditional: 6647, unknown: 27184, unknown conditional: 0, unknown unconditional: 27184] ], Cache Queries: [ total: 19689, independent: 11608, independent conditional: 0, independent unconditional: 11608, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 7815, unknown conditional: 0, unknown unconditional: 7815] , Statistics on independence cache: Total cache size (in pairs): 1173, Positive cache size: 1142, Positive conditional cache size: 0, Positive unconditional cache size: 1142, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 6, Unknown conditional cache size: 0, Unknown unconditional cache size: 6 - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int count = 0; [L708] 0 int mutexa = 0; [L709] 0 int mutexb = 0; [L747] 0 pthread_t t; [L748] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr1, 0)=0, t={7:0}] [L749] COND TRUE 0 1 [L751] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr2, 0)=1, t={7:0}] [L739] COND FALSE 2 !(__VERIFIER_nondet_int()) [L742] CALL 2 my_thread2() [L719] CALL 2 __VERIFIER_atomic_acquire(&mutexb) [L692] EXPR 2 \read(*m) [L692] EXPR 2 *m==0 [L692] CALL 2 assume_abort_if_not(*m==0) [L4] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(*m==0) [L693] 2 *m = 1 [L719] RET 2 __VERIFIER_atomic_acquire(&mutexb) [L726] COND TRUE 1 1 [L728] CALL 1 __VERIFIER_atomic_acquire(&mutexa) [L692] EXPR 1 \read(*m) [L692] EXPR 1 *m==0 [L692] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(*m==0) [L693] 1 *m = 1 [L728] RET 1 __VERIFIER_atomic_acquire(&mutexa) [L729] 1 count >= -1 VAL [#in~arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L720] CALL 2 __VERIFIER_atomic_dec() [L706] 2 count-- [L720] RET 2 __VERIFIER_atomic_dec() [L729] 1 count >= -1 VAL [#in~arg={0:0}, arg={0:0}, count=-1, mutexa={3:0}, mutexb={4:0}] Now there is a data race on ~count~0 between C: count-- [706] and C: count >= -1 [729] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 166 locations, 54 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: 70.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 68.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 4 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 228 locations, 80 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: 104.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 97.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 12 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 12 NumberOfNonLiveVariables, 205 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:53:57,927 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-23 02:53:57,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870f0b22-ef1b-4f87-958e-a0650ae77144/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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