./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski-b.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_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/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_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/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_2fa0274a-201d-4610-865d-d32f36b0bcac/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 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf --- 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 20:39:17,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:39:17,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:39:17,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:39:17,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:39:17,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:39:17,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:39:17,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:39:17,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:39:17,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:39:17,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:39:17,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:39:17,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:39:17,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:39:17,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:39:17,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:39:17,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:39:17,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:39:17,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:39:17,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:39:17,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:39:17,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:39:17,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:39:17,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:39:17,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:39:17,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:39:17,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:39:17,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:39:17,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:39:17,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:39:17,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:39:17,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:39:17,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:39:17,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:39:17,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:39:17,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:39:17,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:39:17,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:39:17,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:39:17,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:39:17,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:39:17,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:39:17,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:39:17,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:39:17,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:39:17,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:39:17,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:39:17,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:39:17,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:39:17,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:39:17,305 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:39:17,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:39:17,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:39:17,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:39:17,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:39:17,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:39:17,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:39:17,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:39:17,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:39:17,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:39:17,308 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:39:17,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:39:17,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:39:17,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:39:17,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:39:17,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:39:17,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:39:17,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:39:17,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:17,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:39:17,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:39:17,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:39:17,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:39:17,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:39:17,313 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:39:17,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:39:17,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:39:17,313 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_2fa0274a-201d-4610-865d-d32f36b0bcac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf [2022-11-02 20:39:17,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:39:17,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:39:17,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:39:17,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:39:17,657 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:39:17,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-02 20:39:17,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/data/c3234a010/9a6374b739984ef4a48d919c608b518c/FLAGa0380a940 [2022-11-02 20:39:18,286 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:39:18,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-02 20:39:18,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/data/c3234a010/9a6374b739984ef4a48d919c608b518c/FLAGa0380a940 [2022-11-02 20:39:18,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/data/c3234a010/9a6374b739984ef4a48d919c608b518c [2022-11-02 20:39:18,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:39:18,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:39:18,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:18,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:39:18,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:39:18,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:18" (1/1) ... [2022-11-02 20:39:18,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510f690d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:18, skipping insertion in model container [2022-11-02 20:39:18,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:18" (1/1) ... [2022-11-02 20:39:18,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:39:18,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:39:19,058 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_2fa0274a-201d-4610-865d-d32f36b0bcac/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-02 20:39:19,067 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_2fa0274a-201d-4610-865d-d32f36b0bcac/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-02 20:39:19,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:19,092 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:39:19,147 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_2fa0274a-201d-4610-865d-d32f36b0bcac/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-02 20:39:19,156 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_2fa0274a-201d-4610-865d-d32f36b0bcac/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-02 20:39:19,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:19,204 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:39:19,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19 WrapperNode [2022-11-02 20:39:19,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:19,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:19,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:39:19,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:39:19,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,285 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-02 20:39:19,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:19,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:39:19,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:39:19,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:39:19,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:39:19,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:39:19,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:39:19,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:39:19,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (1/1) ... [2022-11-02 20:39:19,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:19,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:19,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:39:19,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:39:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:39:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-02 20:39:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-02 20:39:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-02 20:39:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-02 20:39:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:39:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:39:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:39:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:39:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:39:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:39:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:39:19,407 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 20:39:19,559 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:39:19,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:39:19,946 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:39:19,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:39:19,956 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-02 20:39:19,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:19 BoogieIcfgContainer [2022-11-02 20:39:19,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:39:19,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:39:19,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:39:19,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:39:19,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:39:18" (1/3) ... [2022-11-02 20:39:19,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:39:19, skipping insertion in model container [2022-11-02 20:39:19,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:19" (2/3) ... [2022-11-02 20:39:19,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:39:19, skipping insertion in model container [2022-11-02 20:39:19,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:19" (3/3) ... [2022-11-02 20:39:19,969 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2022-11-02 20:39:19,977 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:39:19,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:39:19,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-02 20:39:19,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:39:20,095 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:39:20,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 225 transitions, 466 flow [2022-11-02 20:39:20,300 INFO L130 PetriNetUnfolder]: 22/223 cut-off events. [2022-11-02 20:39:20,301 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:39:20,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 22/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 507 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-11-02 20:39:20,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 225 transitions, 466 flow [2022-11-02 20:39:20,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 213 transitions, 435 flow [2022-11-02 20:39:20,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:39:20,361 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;@55af9f58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:39:20,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-02 20:39:20,378 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-02 20:39:20,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:39:20,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:20,379 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] [2022-11-02 20:39:20,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:20,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1300217422, now seen corresponding path program 1 times [2022-11-02 20:39:20,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289813111] [2022-11-02 20:39:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:20,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:20,701 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 20:39:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:20,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289813111] [2022-11-02 20:39:20,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289813111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:20,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:20,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:39:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967544286] [2022-11-02 20:39:20,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:20,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:39:20,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:39:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:39:20,764 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-02 20:39:20,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 213 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 20:39:20,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:20,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-02 20:39:20,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:21,371 INFO L130 PetriNetUnfolder]: 524/2189 cut-off events. [2022-11-02 20:39:21,371 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-11-02 20:39:21,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 2189 events. 524/2189 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 15602 event pairs, 296 based on Foata normal form. 98/1721 useless extension candidates. Maximal degree in co-relation 2882. Up to 743 conditions per place. [2022-11-02 20:39:21,403 INFO L137 encePairwiseOnDemand]: 205/225 looper letters, 50 selfloop transitions, 9 changer transitions 0/222 dead transitions. [2022-11-02 20:39:21,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 222 transitions, 574 flow [2022-11-02 20:39:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:39:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:39:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2022-11-02 20:39:21,428 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8844444444444445 [2022-11-02 20:39:21,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2022-11-02 20:39:21,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2022-11-02 20:39:21,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:21,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2022-11-02 20:39:21,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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 20:39:21,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:21,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:21,498 INFO L175 Difference]: Start difference. First operand has 198 places, 213 transitions, 435 flow. Second operand 3 states and 597 transitions. [2022-11-02 20:39:21,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 222 transitions, 574 flow [2022-11-02 20:39:21,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 222 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 20:39:21,509 INFO L231 Difference]: Finished difference. Result has 197 places, 209 transitions, 476 flow [2022-11-02 20:39:21,511 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=197, PETRI_TRANSITIONS=209} [2022-11-02 20:39:21,514 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, -1 predicate places. [2022-11-02 20:39:21,514 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 209 transitions, 476 flow [2022-11-02 20:39:21,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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 20:39:21,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:21,515 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] [2022-11-02 20:39:21,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:39:21,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1532164403, now seen corresponding path program 1 times [2022-11-02 20:39:21,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:21,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686769015] [2022-11-02 20:39:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:21,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:21,576 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 20:39:21,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:21,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686769015] [2022-11-02 20:39:21,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686769015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:21,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:21,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:39:21,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826028507] [2022-11-02 20:39:21,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:21,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:39:21,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:21,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:39:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:39:21,580 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-11-02 20:39:21,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 209 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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 20:39:21,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:21,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-11-02 20:39:21,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:22,259 INFO L130 PetriNetUnfolder]: 751/3685 cut-off events. [2022-11-02 20:39:22,259 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-02 20:39:22,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5037 conditions, 3685 events. 751/3685 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 31900 event pairs, 71 based on Foata normal form. 0/2763 useless extension candidates. Maximal degree in co-relation 4874. Up to 643 conditions per place. [2022-11-02 20:39:22,293 INFO L137 encePairwiseOnDemand]: 202/225 looper letters, 48 selfloop transitions, 17 changer transitions 0/238 dead transitions. [2022-11-02 20:39:22,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 238 transitions, 667 flow [2022-11-02 20:39:22,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:39:22,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:39:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2022-11-02 20:39:22,296 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8874074074074074 [2022-11-02 20:39:22,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2022-11-02 20:39:22,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2022-11-02 20:39:22,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:22,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2022-11-02 20:39:22,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:22,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:22,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:22,301 INFO L175 Difference]: Start difference. First operand has 197 places, 209 transitions, 476 flow. Second operand 3 states and 599 transitions. [2022-11-02 20:39:22,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 238 transitions, 667 flow [2022-11-02 20:39:22,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 238 transitions, 649 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:39:22,315 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 606 flow [2022-11-02 20:39:22,316 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2022-11-02 20:39:22,316 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, 1 predicate places. [2022-11-02 20:39:22,317 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 606 flow [2022-11-02 20:39:22,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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 20:39:22,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:22,318 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] [2022-11-02 20:39:22,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:39:22,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:22,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1719672186, now seen corresponding path program 1 times [2022-11-02 20:39:22,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:22,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908195319] [2022-11-02 20:39:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:22,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:22,395 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 20:39:22,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:22,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908195319] [2022-11-02 20:39:22,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908195319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:22,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:22,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:39:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112433968] [2022-11-02 20:39:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:22,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:39:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:39:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:39:22,399 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-02 20:39:22,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:22,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:22,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-02 20:39:22,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:23,096 INFO L130 PetriNetUnfolder]: 821/3788 cut-off events. [2022-11-02 20:39:23,096 INFO L131 PetriNetUnfolder]: For 972/1095 co-relation queries the response was YES. [2022-11-02 20:39:23,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6284 conditions, 3788 events. 821/3788 cut-off events. For 972/1095 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 32530 event pairs, 245 based on Foata normal form. 6/2965 useless extension candidates. Maximal degree in co-relation 4805. Up to 1138 conditions per place. [2022-11-02 20:39:23,141 INFO L137 encePairwiseOnDemand]: 215/225 looper letters, 72 selfloop transitions, 16 changer transitions 0/259 dead transitions. [2022-11-02 20:39:23,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 259 transitions, 933 flow [2022-11-02 20:39:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:39:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:39:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-02 20:39:23,144 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8622222222222222 [2022-11-02 20:39:23,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-02 20:39:23,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-02 20:39:23,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:23,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-02 20:39:23,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 20:39:23,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:23,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:23,150 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 606 flow. Second operand 3 states and 582 transitions. [2022-11-02 20:39:23,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 259 transitions, 933 flow [2022-11-02 20:39:23,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 259 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:39:23,161 INFO L231 Difference]: Finished difference. Result has 201 places, 240 transitions, 718 flow [2022-11-02 20:39:23,162 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=201, PETRI_TRANSITIONS=240} [2022-11-02 20:39:23,164 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, 3 predicate places. [2022-11-02 20:39:23,165 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 240 transitions, 718 flow [2022-11-02 20:39:23,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:23,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:23,166 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 20:39:23,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:39:23,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash 8464183, now seen corresponding path program 1 times [2022-11-02 20:39:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:23,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653444797] [2022-11-02 20:39:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:23,241 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 20:39:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:23,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653444797] [2022-11-02 20:39:23,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653444797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:23,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:23,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:39:23,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398159938] [2022-11-02 20:39:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:23,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:39:23,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:39:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:39:23,245 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 225 [2022-11-02 20:39:23,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 240 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 20:39:23,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:23,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 225 [2022-11-02 20:39:23,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:24,096 INFO L130 PetriNetUnfolder]: 1324/5390 cut-off events. [2022-11-02 20:39:24,096 INFO L131 PetriNetUnfolder]: For 718/749 co-relation queries the response was YES. [2022-11-02 20:39:24,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8632 conditions, 5390 events. 1324/5390 cut-off events. For 718/749 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 48472 event pairs, 520 based on Foata normal form. 5/4033 useless extension candidates. Maximal degree in co-relation 8428. Up to 1713 conditions per place. [2022-11-02 20:39:24,154 INFO L137 encePairwiseOnDemand]: 215/225 looper letters, 57 selfloop transitions, 9 changer transitions 0/261 dead transitions. [2022-11-02 20:39:24,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 261 transitions, 906 flow [2022-11-02 20:39:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:39:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:39:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-02 20:39:24,157 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8622222222222222 [2022-11-02 20:39:24,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-02 20:39:24,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-02 20:39:24,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:24,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-02 20:39:24,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 20:39:24,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:24,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:24,164 INFO L175 Difference]: Start difference. First operand has 201 places, 240 transitions, 718 flow. Second operand 3 states and 582 transitions. [2022-11-02 20:39:24,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 261 transitions, 906 flow [2022-11-02 20:39:24,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 261 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:39:24,172 INFO L231 Difference]: Finished difference. Result has 203 places, 248 transitions, 768 flow [2022-11-02 20:39:24,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=768, PETRI_PLACES=203, PETRI_TRANSITIONS=248} [2022-11-02 20:39:24,174 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, 5 predicate places. [2022-11-02 20:39:24,174 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 248 transitions, 768 flow [2022-11-02 20:39:24,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 20:39:24,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:24,175 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] [2022-11-02 20:39:24,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:39:24,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:24,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:24,176 INFO L85 PathProgramCache]: Analyzing trace with hash -355977572, now seen corresponding path program 1 times [2022-11-02 20:39:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:24,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604568827] [2022-11-02 20:39:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:24,596 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 20:39:24,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:24,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604568827] [2022-11-02 20:39:24,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604568827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:24,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:24,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:39:24,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326054330] [2022-11-02 20:39:24,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:24,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:39:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:24,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:39:24,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:39:24,602 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 225 [2022-11-02 20:39:24,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 248 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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 20:39:24,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:24,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 225 [2022-11-02 20:39:24,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:25,031 INFO L130 PetriNetUnfolder]: 537/2939 cut-off events. [2022-11-02 20:39:25,031 INFO L131 PetriNetUnfolder]: For 424/520 co-relation queries the response was YES. [2022-11-02 20:39:25,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4406 conditions, 2939 events. 537/2939 cut-off events. For 424/520 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 25001 event pairs, 46 based on Foata normal form. 61/2325 useless extension candidates. Maximal degree in co-relation 4364. Up to 290 conditions per place. [2022-11-02 20:39:25,068 INFO L137 encePairwiseOnDemand]: 220/225 looper letters, 14 selfloop transitions, 4 changer transitions 0/247 dead transitions. [2022-11-02 20:39:25,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 247 transitions, 802 flow [2022-11-02 20:39:25,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:39:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:39:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2022-11-02 20:39:25,071 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8629629629629629 [2022-11-02 20:39:25,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2022-11-02 20:39:25,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2022-11-02 20:39:25,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:25,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2022-11-02 20:39:25,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 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 20:39:25,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 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 20:39:25,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 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 20:39:25,080 INFO L175 Difference]: Start difference. First operand has 203 places, 248 transitions, 768 flow. Second operand 6 states and 1165 transitions. [2022-11-02 20:39:25,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 247 transitions, 802 flow [2022-11-02 20:39:25,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 247 transitions, 772 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-02 20:39:25,088 INFO L231 Difference]: Finished difference. Result has 205 places, 247 transitions, 744 flow [2022-11-02 20:39:25,089 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=205, PETRI_TRANSITIONS=247} [2022-11-02 20:39:25,090 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, 7 predicate places. [2022-11-02 20:39:25,090 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 247 transitions, 744 flow [2022-11-02 20:39:25,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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 20:39:25,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:25,091 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] [2022-11-02 20:39:25,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:39:25,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:25,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:25,092 INFO L85 PathProgramCache]: Analyzing trace with hash -383610431, now seen corresponding path program 1 times [2022-11-02 20:39:25,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:25,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145090090] [2022-11-02 20:39:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:25,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:25,135 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 20:39:25,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:25,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145090090] [2022-11-02 20:39:25,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145090090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:25,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:25,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:39:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893635811] [2022-11-02 20:39:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:39:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:39:25,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:39:25,139 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-11-02 20:39:25,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 247 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 20:39:25,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:25,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-11-02 20:39:25,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:26,151 INFO L130 PetriNetUnfolder]: 1667/7053 cut-off events. [2022-11-02 20:39:26,152 INFO L131 PetriNetUnfolder]: For 2007/2152 co-relation queries the response was YES. [2022-11-02 20:39:26,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11854 conditions, 7053 events. 1667/7053 cut-off events. For 2007/2152 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 69017 event pairs, 171 based on Foata normal form. 14/5509 useless extension candidates. Maximal degree in co-relation 11656. Up to 1267 conditions per place. [2022-11-02 20:39:26,292 INFO L137 encePairwiseOnDemand]: 202/225 looper letters, 59 selfloop transitions, 29 changer transitions 0/285 dead transitions. [2022-11-02 20:39:26,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 285 transitions, 1053 flow [2022-11-02 20:39:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:39:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:39:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-11-02 20:39:26,295 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.882962962962963 [2022-11-02 20:39:26,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-11-02 20:39:26,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-11-02 20:39:26,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:26,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-11-02 20:39:26,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 20:39:26,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:26,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 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 20:39:26,301 INFO L175 Difference]: Start difference. First operand has 205 places, 247 transitions, 744 flow. Second operand 3 states and 596 transitions. [2022-11-02 20:39:26,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 285 transitions, 1053 flow [2022-11-02 20:39:26,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 285 transitions, 1046 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:39:26,311 INFO L231 Difference]: Finished difference. Result has 205 places, 276 transitions, 1033 flow [2022-11-02 20:39:26,312 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1033, PETRI_PLACES=205, PETRI_TRANSITIONS=276} [2022-11-02 20:39:26,312 INFO L287 CegarLoopForPetriNet]: 198 programPoint places, 7 predicate places. [2022-11-02 20:39:26,313 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 276 transitions, 1033 flow [2022-11-02 20:39:26,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 20:39:26,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:26,314 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] [2022-11-02 20:39:26,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:39:26,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-02 20:39:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1087596929, now seen corresponding path program 1 times [2022-11-02 20:39:26,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:26,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369562456] [2022-11-02 20:39:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:26,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:39:26,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:39:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:39:26,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:39:26,363 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:39:26,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-11-02 20:39:26,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-02 20:39:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-02 20:39:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-02 20:39:26,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-02 20:39:26,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-02 20:39:26,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-02 20:39:26,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-02 20:39:26,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-02 20:39:26,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-02 20:39:26,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-02 20:39:26,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-02 20:39:26,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-02 20:39:26,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-02 20:39:26,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-02 20:39:26,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-02 20:39:26,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-02 20:39:26,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-02 20:39:26,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-02 20:39:26,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-11-02 20:39:26,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-02 20:39:26,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-02 20:39:26,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-02 20:39:26,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-02 20:39:26,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-02 20:39:26,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-02 20:39:26,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-02 20:39:26,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-02 20:39:26,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-02 20:39:26,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 56 remaining) [2022-11-02 20:39:26,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 56 remaining) [2022-11-02 20:39:26,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-02 20:39:26,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-11-02 20:39:26,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-11-02 20:39:26,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-02 20:39:26,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-02 20:39:26,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-02 20:39:26,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-02 20:39:26,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-02 20:39:26,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-02 20:39:26,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-02 20:39:26,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-02 20:39:26,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-02 20:39:26,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-02 20:39:26,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-02 20:39:26,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-02 20:39:26,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-02 20:39:26,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-02 20:39:26,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-02 20:39:26,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-02 20:39:26,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-02 20:39:26,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-02 20:39:26,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-02 20:39:26,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-02 20:39:26,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-02 20:39:26,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-02 20:39:26,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:39:26,382 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:26,389 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:39:26,390 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:39:26,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:39:26 BasicIcfg [2022-11-02 20:39:26,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:39:26,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:39:26,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:39:26,426 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:39:26,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:39:19" (3/4) ... [2022-11-02 20:39:26,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:39:26,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:39:26,430 INFO L158 Benchmark]: Toolchain (without parser) took 7865.80ms. Allocated memory was 113.2MB in the beginning and 656.4MB in the end (delta: 543.2MB). Free memory was 72.8MB in the beginning and 474.7MB in the end (delta: -402.0MB). Peak memory consumption was 140.4MB. Max. memory is 16.1GB. [2022-11-02 20:39:26,431 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:39:26,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.31ms. Allocated memory is still 113.2MB. Free memory was 72.6MB in the beginning and 76.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:39:26,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.55ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:39:26,432 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:39:26,432 INFO L158 Benchmark]: RCFGBuilder took 642.02ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 53.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:39:26,433 INFO L158 Benchmark]: TraceAbstraction took 6464.47ms. Allocated memory was 113.2MB in the beginning and 656.4MB in the end (delta: 543.2MB). Free memory was 53.4MB in the beginning and 474.7MB in the end (delta: -421.3MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2022-11-02 20:39:26,433 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 656.4MB. Free memory is still 474.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:39:26,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.31ms. Allocated memory is still 113.2MB. Free memory was 72.6MB in the beginning and 76.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.55ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 642.02ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 53.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6464.47ms. Allocated memory was 113.2MB in the beginning and 656.4MB in the end (delta: 543.2MB). Free memory was 53.4MB in the beginning and 474.7MB in the end (delta: -421.3MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 656.4MB. Free memory is still 474.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 688]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L685] 0 int x; VAL [flag1=0, flag2=0, x=0] [L719] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, x=0] [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, flag1=0, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [703] and C: flag2 >= 3 [688] - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: 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: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: 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: 699]: 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: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: 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: 720]: 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, 354 locations, 56 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: 6.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 186 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1033occurred in iteration=6, InterpolantAutomatonStates: 21, 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, 0.7s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 20:39:26,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa0274a-201d-4610-865d-d32f36b0bcac/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