./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc --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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- 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-5e519f3 [2022-11-02 20:35:37,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:35:37,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:35:37,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:35:37,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:35:37,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:35:37,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:35:37,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:35:37,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:35:37,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:35:37,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:35:37,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:35:37,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:35:37,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:35:37,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:35:37,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:35:37,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:35:37,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:35:37,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:35:37,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:35:37,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:35:37,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:35:37,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:35:37,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:35:37,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:35:37,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:35:37,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:35:37,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:35:37,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:35:37,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:35:37,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:35:37,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:35:37,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:35:37,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:35:37,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:35:37,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:35:37,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:35:37,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:35:37,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:35:37,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:35:37,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:35:37,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:35:37,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:35:37,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:35:37,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:35:37,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:35:37,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:35:37,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:35:37,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:35:37,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:35:37,300 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:35:37,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:35:37,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:35:37,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:35:37,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:35:37,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:35:37,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:35:37,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:35:37,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:35:37,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:35:37,304 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:35:37,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:35:37,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:35:37,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:35:37,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:35:37,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:35:37,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:35:37,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:35:37,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:37,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:35:37,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:35:37,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:35:37,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:35:37,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:35:37,309 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:35:37,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:35:37,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:35:37,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2022-11-02 20:35:37,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:35:37,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:35:37,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:35:37,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:35:37,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:35:37,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-02 20:35:37,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/data/3bc6756e8/8649f2d2fe434d5fb46328fa2a7c38df/FLAG49cc7dbe5 [2022-11-02 20:35:38,470 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:35:38,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2022-11-02 20:35:38,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/data/3bc6756e8/8649f2d2fe434d5fb46328fa2a7c38df/FLAG49cc7dbe5 [2022-11-02 20:35:38,633 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/data/3bc6756e8/8649f2d2fe434d5fb46328fa2a7c38df [2022-11-02 20:35:38,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:35:38,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:35:38,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:38,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:35:38,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:35:38,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:38" (1/1) ... [2022-11-02 20:35:38,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582179d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:38, skipping insertion in model container [2022-11-02 20:35:38,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:38" (1/1) ... [2022-11-02 20:35:38,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:35:38,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:35:39,763 WARN L230 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_7cf4c6dc-6b89-4eb3-96ef-43e493787364/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-02 20:35:39,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:39,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:35:39,884 WARN L230 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_7cf4c6dc-6b89-4eb3-96ef-43e493787364/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2022-11-02 20:35:39,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:40,009 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:35:40,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40 WrapperNode [2022-11-02 20:35:40,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:40,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:40,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:35:40,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:35:40,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,100 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2022-11-02 20:35:40,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:40,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:35:40,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:35:40,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:35:40,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:35:40,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:35:40,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:35:40,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:35:40,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (1/1) ... [2022-11-02 20:35:40,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:35:40,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:35:40,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:35:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:35:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:35:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:35:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:35:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:35:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:35:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:35:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:35:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:35:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:35:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:35:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:35:40,257 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:35:40,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:35:40,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:35:40,891 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:35:40,908 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:35:40,910 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:35:40,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:35:40 BoogieIcfgContainer [2022-11-02 20:35:40,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:35:40,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:35:40,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:35:40,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:35:40,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:35:38" (1/3) ... [2022-11-02 20:35:40,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a65182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:35:40, skipping insertion in model container [2022-11-02 20:35:40,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:40" (2/3) ... [2022-11-02 20:35:40,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a65182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:35:40, skipping insertion in model container [2022-11-02 20:35:40,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:35:40" (3/3) ... [2022-11-02 20:35:40,925 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2022-11-02 20:35:40,934 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:35:40,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:35:40,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-02 20:35:40,946 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:35:41,038 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:35:41,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2022-11-02 20:35:41,206 INFO L130 PetriNetUnfolder]: 6/191 cut-off events. [2022-11-02 20:35:41,207 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:35:41,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 6/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2022-11-02 20:35:41,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 314 flow [2022-11-02 20:35:41,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 284 flow [2022-11-02 20:35:41,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:35:41,233 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;@2e48ba80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:35:41,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-02 20:35:41,241 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-02 20:35:41,242 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:35:41,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:41,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:41,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash -286395504, now seen corresponding path program 1 times [2022-11-02 20:35:41,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:41,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278055821] [2022-11-02 20:35:41,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:41,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:35:41,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278055821] [2022-11-02 20:35:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278055821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:41,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:35:41,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378264687] [2022-11-02 20:35:41,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:41,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:35:41,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:41,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:35:41,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:35:41,782 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-02 20:35:41,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-11-02 20:35:41,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:35:41,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-02 20:35:41,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:35:41,970 INFO L130 PetriNetUnfolder]: 18/254 cut-off events. [2022-11-02 20:35:41,970 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:35:41,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 254 events. 18/254 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 743 event pairs, 18 based on Foata normal form. 7/222 useless extension candidates. Maximal degree in co-relation 182. Up to 71 conditions per place. [2022-11-02 20:35:41,973 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 28 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2022-11-02 20:35:41,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 330 flow [2022-11-02 20:35:41,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:35:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:35:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-11-02 20:35:41,987 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8126361655773421 [2022-11-02 20:35:41,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-11-02 20:35:41,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-11-02 20:35:41,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:35:41,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-11-02 20:35:41,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-11-02 20:35:42,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,010 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 284 flow. Second operand 3 states and 373 transitions. [2022-11-02 20:35:42,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 330 flow [2022-11-02 20:35:42,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:35:42,024 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 266 flow [2022-11-02 20:35:42,027 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2022-11-02 20:35:42,031 INFO L287 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2022-11-02 20:35:42,033 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 266 flow [2022-11-02 20:35:42,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-11-02 20:35:42,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:42,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:42,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:35:42,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:42,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2091859442, now seen corresponding path program 1 times [2022-11-02 20:35:42,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:42,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532366334] [2022-11-02 20:35:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:42,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:35:42,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:42,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532366334] [2022-11-02 20:35:42,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532366334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:42,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:42,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:35:42,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033675213] [2022-11-02 20:35:42,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:42,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:35:42,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:42,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:35:42,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:35:42,216 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2022-11-02 20:35:42,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-02 20:35:42,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:35:42,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2022-11-02 20:35:42,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:35:42,363 INFO L130 PetriNetUnfolder]: 19/268 cut-off events. [2022-11-02 20:35:42,363 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-02 20:35:42,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 268 events. 19/268 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 833 event pairs, 8 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 307. Up to 49 conditions per place. [2022-11-02 20:35:42,367 INFO L137 encePairwiseOnDemand]: 140/153 looper letters, 21 selfloop transitions, 8 changer transitions 3/134 dead transitions. [2022-11-02 20:35:42,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 337 flow [2022-11-02 20:35:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:35:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:35:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-11-02 20:35:42,374 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8344226579520697 [2022-11-02 20:35:42,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-11-02 20:35:42,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-11-02 20:35:42,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:35:42,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-11-02 20:35:42,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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) [2022-11-02 20:35:42,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,384 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 266 flow. Second operand 3 states and 383 transitions. [2022-11-02 20:35:42,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 337 flow [2022-11-02 20:35:42,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:35:42,392 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 300 flow [2022-11-02 20:35:42,393 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2022-11-02 20:35:42,394 INFO L287 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2022-11-02 20:35:42,394 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 300 flow [2022-11-02 20:35:42,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2022-11-02 20:35:42,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:42,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:42,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:35:42,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2002536850, now seen corresponding path program 1 times [2022-11-02 20:35:42,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:42,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835322166] [2022-11-02 20:35:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:35:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:42,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835322166] [2022-11-02 20:35:42,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835322166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:42,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:42,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:35:42,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315049548] [2022-11-02 20:35:42,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:42,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:35:42,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:42,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:35:42,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:35:42,588 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-02 20:35:42,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-11-02 20:35:42,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:35:42,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-02 20:35:42,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:35:42,677 INFO L130 PetriNetUnfolder]: 19/264 cut-off events. [2022-11-02 20:35:42,678 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-11-02 20:35:42,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 264 events. 19/264 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 823 event pairs, 12 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 67. Up to 71 conditions per place. [2022-11-02 20:35:42,681 INFO L137 encePairwiseOnDemand]: 150/153 looper letters, 26 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-11-02 20:35:42,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 354 flow [2022-11-02 20:35:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:35:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:35:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2022-11-02 20:35:42,683 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2022-11-02 20:35:42,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2022-11-02 20:35:42,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2022-11-02 20:35:42,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:35:42,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2022-11-02 20:35:42,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-02 20:35:42,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,689 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 300 flow. Second operand 3 states and 364 transitions. [2022-11-02 20:35:42,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 354 flow [2022-11-02 20:35:42,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:35:42,695 INFO L231 Difference]: Finished difference. Result has 128 places, 127 transitions, 286 flow [2022-11-02 20:35:42,695 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2022-11-02 20:35:42,698 INFO L287 CegarLoopForPetriNet]: 139 programPoint places, -11 predicate places. [2022-11-02 20:35:42,698 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 286 flow [2022-11-02 20:35:42,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-11-02 20:35:42,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:42,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:42,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:35:42,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:42,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:42,700 INFO L85 PathProgramCache]: Analyzing trace with hash 242499866, now seen corresponding path program 1 times [2022-11-02 20:35:42,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:42,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985175082] [2022-11-02 20:35:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:42,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:35:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:42,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985175082] [2022-11-02 20:35:42,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985175082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:42,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:42,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:35:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635552574] [2022-11-02 20:35:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:42,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:35:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:35:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:35:42,799 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 153 [2022-11-02 20:35:42,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-02 20:35:42,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:35:42,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 153 [2022-11-02 20:35:42,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:35:42,914 INFO L130 PetriNetUnfolder]: 35/338 cut-off events. [2022-11-02 20:35:42,914 INFO L131 PetriNetUnfolder]: For 29/37 co-relation queries the response was YES. [2022-11-02 20:35:42,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 338 events. 35/338 cut-off events. For 29/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1303 event pairs, 11 based on Foata normal form. 2/302 useless extension candidates. Maximal degree in co-relation 422. Up to 78 conditions per place. [2022-11-02 20:35:42,920 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 30 selfloop transitions, 6 changer transitions 6/136 dead transitions. [2022-11-02 20:35:42,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 136 transitions, 386 flow [2022-11-02 20:35:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:35:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:35:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-11-02 20:35:42,923 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-11-02 20:35:42,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-11-02 20:35:42,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-11-02 20:35:42,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:35:42,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-11-02 20:35:42,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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) [2022-11-02 20:35:42,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:42,931 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 286 flow. Second operand 3 states and 374 transitions. [2022-11-02 20:35:42,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 136 transitions, 386 flow [2022-11-02 20:35:42,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:35:42,940 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 316 flow [2022-11-02 20:35:42,940 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-02 20:35:42,942 INFO L287 CegarLoopForPetriNet]: 139 programPoint places, -9 predicate places. [2022-11-02 20:35:42,942 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 316 flow [2022-11-02 20:35:42,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-02 20:35:42,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:42,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:42,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:35:42,948 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:42,949 INFO L85 PathProgramCache]: Analyzing trace with hash 386620905, now seen corresponding path program 1 times [2022-11-02 20:35:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:42,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097383408] [2022-11-02 20:35:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:42,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:35:43,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:43,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097383408] [2022-11-02 20:35:43,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097383408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:43,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:43,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:35:43,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009001773] [2022-11-02 20:35:43,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:43,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:35:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:43,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:35:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:35:43,061 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-02 20:35:43,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-11-02 20:35:43,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:35:43,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-02 20:35:43,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:35:43,159 INFO L130 PetriNetUnfolder]: 30/331 cut-off events. [2022-11-02 20:35:43,160 INFO L131 PetriNetUnfolder]: For 83/85 co-relation queries the response was YES. [2022-11-02 20:35:43,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 331 events. 30/331 cut-off events. For 83/85 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1333 event pairs, 9 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 65. Up to 80 conditions per place. [2022-11-02 20:35:43,162 INFO L137 encePairwiseOnDemand]: 148/153 looper letters, 31 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2022-11-02 20:35:43,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 416 flow [2022-11-02 20:35:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:35:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:35:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-11-02 20:35:43,164 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2022-11-02 20:35:43,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-11-02 20:35:43,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-11-02 20:35:43,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:35:43,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-11-02 20:35:43,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2022-11-02 20:35:43,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:43,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-02 20:35:43,168 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 316 flow. Second operand 3 states and 369 transitions. [2022-11-02 20:35:43,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 416 flow [2022-11-02 20:35:43,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:35:43,175 INFO L231 Difference]: Finished difference. Result has 126 places, 128 transitions, 346 flow [2022-11-02 20:35:43,175 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=126, PETRI_TRANSITIONS=128} [2022-11-02 20:35:43,178 INFO L287 CegarLoopForPetriNet]: 139 programPoint places, -13 predicate places. [2022-11-02 20:35:43,178 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 128 transitions, 346 flow [2022-11-02 20:35:43,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2022-11-02 20:35:43,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:35:43,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:43,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:35:43,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-02 20:35:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash -628967552, now seen corresponding path program 1 times [2022-11-02 20:35:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:43,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142372707] [2022-11-02 20:35:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:35:43,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:35:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:35:43,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:35:43,272 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:35:43,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-02 20:35:43,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-02 20:35:43,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-02 20:35:43,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-02 20:35:43,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-02 20:35:43,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-02 20:35:43,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-02 20:35:43,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-02 20:35:43,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-02 20:35:43,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-02 20:35:43,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-02 20:35:43,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-02 20:35:43,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:35:43,279 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:35:43,286 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:35:43,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:35:43,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:35:43 BasicIcfg [2022-11-02 20:35:43,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:35:43,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:35:43,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:35:43,344 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:35:43,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:35:40" (3/4) ... [2022-11-02 20:35:43,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:35:43,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:35:43,349 INFO L158 Benchmark]: Toolchain (without parser) took 4711.99ms. Allocated memory was 113.2MB in the beginning and 169.9MB in the end (delta: 56.6MB). Free memory was 67.2MB in the beginning and 69.6MB in the end (delta: -2.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,349 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:35:43,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.54ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 67.0MB in the beginning and 105.2MB in the end (delta: -38.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.08ms. Allocated memory is still 140.5MB. Free memory was 105.2MB in the beginning and 102.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,351 INFO L158 Benchmark]: Boogie Preprocessor took 66.34ms. Allocated memory is still 140.5MB. Free memory was 102.4MB in the beginning and 99.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,351 INFO L158 Benchmark]: RCFGBuilder took 745.72ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 78.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,352 INFO L158 Benchmark]: TraceAbstraction took 2426.88ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 77.9MB in the beginning and 69.6MB in the end (delta: 8.2MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-11-02 20:35:43,352 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:35:43,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.54ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 67.0MB in the beginning and 105.2MB in the end (delta: -38.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.08ms. Allocated memory is still 140.5MB. Free memory was 105.2MB in the beginning and 102.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.34ms. Allocated memory is still 140.5MB. Free memory was 102.4MB in the beginning and 99.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 745.72ms. Allocated memory is still 140.5MB. Free memory was 99.7MB in the beginning and 78.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2426.88ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 77.9MB in the beginning and 69.6MB in the end (delta: 8.2MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1={3:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1696] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] RET, EXPR 0 module_init() [L1726] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, module_init()=0, mutex={4:0}, pdev=6, t1={3:0}] [L1727] CALL 0 module_exit() [L1717] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, status={5:0}, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 6=1153, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 4=1150, pdev = 6=1153, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, pdev = 6=1153, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: 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 3 procedures, 162 locations, 12 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: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 109 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.6s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:35:43,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cf4c6dc-6b89-4eb3-96ef-43e493787364/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE