./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN --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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- 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-6b4ec56 [2022-11-20 12:34:12,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:34:12,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:34:12,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:34:12,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:34:12,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:34:12,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:34:12,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:34:12,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:34:12,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:34:12,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:34:12,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:34:12,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:34:12,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:34:12,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:34:12,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:34:12,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:34:12,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:34:12,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:34:12,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:34:12,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:34:12,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:34:12,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:34:12,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:34:12,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:34:12,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:34:12,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:34:12,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:34:12,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:34:12,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:34:12,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:34:12,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:34:12,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:34:12,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:34:12,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:34:12,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:34:12,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:34:12,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:34:12,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:34:12,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:34:12,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:34:12,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:34:12,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:34:12,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:34:12,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:34:12,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:34:12,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:34:12,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:34:12,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:34:12,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:34:12,465 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:34:12,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:34:12,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:34:12,467 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:34:12,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:34:12,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:34:12,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:34:12,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:34:12,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:34:12,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:34:12,469 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:34:12,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:34:12,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:34:12,469 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:34:12,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:34:12,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:34:12,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:34:12,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:34:12,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:34:12,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:34:12,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:34:12,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:34:12,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:34:12,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:34:12,473 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:34:12,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:34:12,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:34:12,473 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_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2022-11-20 12:34:12,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:34:12,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:34:12,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:34:12,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:34:12,868 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:34:12,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2022-11-20 12:34:16,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:34:16,342 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:34:16,342 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2022-11-20 12:34:16,357 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/data/a07b7ef8c/02abf873d8d1413592644ea142ffba07/FLAG2c5fa496b [2022-11-20 12:34:16,375 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/data/a07b7ef8c/02abf873d8d1413592644ea142ffba07 [2022-11-20 12:34:16,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:34:16,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:34:16,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:34:16,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:34:16,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:34:16,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:34:16" (1/1) ... [2022-11-20 12:34:16,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8b4911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:16, skipping insertion in model container [2022-11-20 12:34:16,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:34:16" (1/1) ... [2022-11-20 12:34:16,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:34:16,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:34:17,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30285,30298] [2022-11-20 12:34:17,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30729,30742] [2022-11-20 12:34:17,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:34:17,072 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:34:17,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30285,30298] [2022-11-20 12:34:17,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30729,30742] [2022-11-20 12:34:17,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:34:17,200 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:34:17,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17 WrapperNode [2022-11-20 12:34:17,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:34:17,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:34:17,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:34:17,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:34:17,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,294 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 264 [2022-11-20 12:34:17,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:34:17,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:34:17,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:34:17,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:34:17,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:34:17,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:34:17,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:34:17,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:34:17,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (1/1) ... [2022-11-20 12:34:17,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:34:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:34:17,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:34:17,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8121c21c-5d84-4229-a6c4-cff7d2cd0c12/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:34:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:34:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 12:34:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 12:34:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:34:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:34:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:34:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:34:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:34:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:34:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:34:17,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:34:17,623 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:34:17,628 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:34:18,364 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:34:18,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:34:18,886 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:34:18,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:34:18 BoogieIcfgContainer [2022-11-20 12:34:18,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:34:18,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:34:18,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:34:18,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:34:18,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:34:16" (1/3) ... [2022-11-20 12:34:18,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8e2112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:34:18, skipping insertion in model container [2022-11-20 12:34:18,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:34:17" (2/3) ... [2022-11-20 12:34:18,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8e2112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:34:18, skipping insertion in model container [2022-11-20 12:34:18,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:34:18" (3/3) ... [2022-11-20 12:34:18,903 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2022-11-20 12:34:18,914 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:34:18,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:34:18,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 12:34:18,928 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:34:19,083 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:34:19,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 287 flow [2022-11-20 12:34:19,252 INFO L130 PetriNetUnfolder]: 9/152 cut-off events. [2022-11-20 12:34:19,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:34:19,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 152 events. 9/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 342 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2022-11-20 12:34:19,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 141 transitions, 287 flow [2022-11-20 12:34:19,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 141 transitions, 287 flow [2022-11-20 12:34:19,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:34:19,297 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;@602c229d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:34:19,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-20 12:34:19,329 INFO L130 PetriNetUnfolder]: 2/54 cut-off events. [2022-11-20 12:34:19,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:34:19,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:19,331 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2022-11-20 12:34:19,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:34:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2113398464, now seen corresponding path program 1 times [2022-11-20 12:34:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:19,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693737227] [2022-11-20 12:34:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:34:19,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:34:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:34:19,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:34:19,685 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:34:19,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-11-20 12:34:19,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-11-20 12:34:19,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-11-20 12:34:19,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-11-20 12:34:19,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-11-20 12:34:19,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-11-20 12:34:19,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-11-20 12:34:19,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-11-20 12:34:19,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-11-20 12:34:19,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-11-20 12:34:19,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-11-20 12:34:19,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-11-20 12:34:19,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-11-20 12:34:19,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-11-20 12:34:19,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-11-20 12:34:19,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-11-20 12:34:19,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-11-20 12:34:19,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-11-20 12:34:19,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-11-20 12:34:19,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-11-20 12:34:19,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-11-20 12:34:19,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-11-20 12:34:19,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-11-20 12:34:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-11-20 12:34:19,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-11-20 12:34:19,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-11-20 12:34:19,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-11-20 12:34:19,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-11-20 12:34:19,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-11-20 12:34:19,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-11-20 12:34:19,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-11-20 12:34:19,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-11-20 12:34:19,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-11-20 12:34:19,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-11-20 12:34:19,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-11-20 12:34:19,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-11-20 12:34:19,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-11-20 12:34:19,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:34:19,725 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 12:34:19,741 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 12:34:19,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 12:34:19,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:34:19,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 246 transitions, 504 flow [2022-11-20 12:34:20,118 INFO L130 PetriNetUnfolder]: 17/270 cut-off events. [2022-11-20 12:34:20,118 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:34:20,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 270 events. 17/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1036 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 221. Up to 6 conditions per place. [2022-11-20 12:34:20,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 246 transitions, 504 flow [2022-11-20 12:34:20,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 236 places, 246 transitions, 504 flow [2022-11-20 12:34:20,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:34:20,140 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;@602c229d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:34:20,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-11-20 12:34:20,158 INFO L130 PetriNetUnfolder]: 3/86 cut-off events. [2022-11-20 12:34:20,158 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:34:20,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:20,160 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:20,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-11-20 12:34:20,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1734134779, now seen corresponding path program 1 times [2022-11-20 12:34:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:20,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132044306] [2022-11-20 12:34:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:20,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:20,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:20,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132044306] [2022-11-20 12:34:20,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132044306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:20,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:20,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:20,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291501491] [2022-11-20 12:34:20,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:20,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:34:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:20,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:34:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:34:20,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 246 [2022-11-20 12:34:20,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 246 transitions, 504 flow. Second operand has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 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) [2022-11-20 12:34:20,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:20,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 246 [2022-11-20 12:34:20,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:21,305 INFO L130 PetriNetUnfolder]: 50/621 cut-off events. [2022-11-20 12:34:21,305 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-20 12:34:21,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 621 events. 50/621 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3550 event pairs, 20 based on Foata normal form. 51/614 useless extension candidates. Maximal degree in co-relation 174. Up to 51 conditions per place. [2022-11-20 12:34:21,314 INFO L137 encePairwiseOnDemand]: 212/246 looper letters, 10 selfloop transitions, 0 changer transitions 0/207 dead transitions. [2022-11-20 12:34:21,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 207 transitions, 446 flow [2022-11-20 12:34:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:34:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:34:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 448 transitions. [2022-11-20 12:34:21,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9105691056910569 [2022-11-20 12:34:21,339 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 448 transitions. [2022-11-20 12:34:21,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 448 transitions. [2022-11-20 12:34:21,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:21,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 448 transitions. [2022-11-20 12:34:21,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 224.0) internal successors, (448), 2 states have internal predecessors, (448), 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) [2022-11-20 12:34:21,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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) [2022-11-20 12:34:21,366 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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) [2022-11-20 12:34:21,368 INFO L175 Difference]: Start difference. First operand has 236 places, 246 transitions, 504 flow. Second operand 2 states and 448 transitions. [2022-11-20 12:34:21,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 207 transitions, 446 flow [2022-11-20 12:34:21,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 207 transitions, 444 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-20 12:34:21,382 INFO L231 Difference]: Finished difference. Result has 203 places, 207 transitions, 424 flow [2022-11-20 12:34:21,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=424, PETRI_PLACES=203, PETRI_TRANSITIONS=207} [2022-11-20 12:34:21,389 INFO L288 CegarLoopForPetriNet]: 236 programPoint places, -33 predicate places. [2022-11-20 12:34:21,389 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 207 transitions, 424 flow [2022-11-20 12:34:21,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 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) [2022-11-20 12:34:21,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:21,390 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2022-11-20 12:34:21,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:34:21,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-11-20 12:34:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1865462906, now seen corresponding path program 1 times [2022-11-20 12:34:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451148919] [2022-11-20 12:34:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:34:21,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:34:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:34:21,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:34:21,448 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:34:21,448 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2022-11-20 12:34:21,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2022-11-20 12:34:21,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2022-11-20 12:34:21,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2022-11-20 12:34:21,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2022-11-20 12:34:21,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2022-11-20 12:34:21,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2022-11-20 12:34:21,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2022-11-20 12:34:21,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2022-11-20 12:34:21,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2022-11-20 12:34:21,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2022-11-20 12:34:21,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2022-11-20 12:34:21,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2022-11-20 12:34:21,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2022-11-20 12:34:21,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2022-11-20 12:34:21,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2022-11-20 12:34:21,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2022-11-20 12:34:21,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2022-11-20 12:34:21,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2022-11-20 12:34:21,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2022-11-20 12:34:21,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2022-11-20 12:34:21,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2022-11-20 12:34:21,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2022-11-20 12:34:21,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2022-11-20 12:34:21,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2022-11-20 12:34:21,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2022-11-20 12:34:21,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2022-11-20 12:34:21,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2022-11-20 12:34:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2022-11-20 12:34:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2022-11-20 12:34:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2022-11-20 12:34:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2022-11-20 12:34:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2022-11-20 12:34:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2022-11-20 12:34:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2022-11-20 12:34:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2022-11-20 12:34:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2022-11-20 12:34:21,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2022-11-20 12:34:21,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2022-11-20 12:34:21,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2022-11-20 12:34:21,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2022-11-20 12:34:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2022-11-20 12:34:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2022-11-20 12:34:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2022-11-20 12:34:21,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2022-11-20 12:34:21,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2022-11-20 12:34:21,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2022-11-20 12:34:21,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2022-11-20 12:34:21,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2022-11-20 12:34:21,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2022-11-20 12:34:21,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2022-11-20 12:34:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2022-11-20 12:34:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2022-11-20 12:34:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2022-11-20 12:34:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2022-11-20 12:34:21,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:34:21,465 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 12:34:21,466 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 12:34:21,466 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 12:34:21,682 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:34:21,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 351 transitions, 723 flow [2022-11-20 12:34:21,837 INFO L130 PetriNetUnfolder]: 25/388 cut-off events. [2022-11-20 12:34:21,838 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 12:34:21,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 388 events. 25/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1793 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 325. Up to 8 conditions per place. [2022-11-20 12:34:21,849 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 351 transitions, 723 flow [2022-11-20 12:34:21,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 351 transitions, 723 flow [2022-11-20 12:34:21,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:34:21,859 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;@602c229d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:34:21,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2022-11-20 12:34:21,869 INFO L130 PetriNetUnfolder]: 3/85 cut-off events. [2022-11-20 12:34:21,869 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:34:21,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:21,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:21,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-20 12:34:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1631893952, now seen corresponding path program 1 times [2022-11-20 12:34:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:21,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988625478] [2022-11-20 12:34:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:21,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:21,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988625478] [2022-11-20 12:34:21,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988625478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:21,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:21,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:34:21,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120395994] [2022-11-20 12:34:21,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:21,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:34:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:21,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:34:21,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:34:21,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 351 [2022-11-20 12:34:21,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 351 transitions, 723 flow. Second operand has 2 states, 2 states have (on average 287.5) internal successors, (575), 2 states have internal predecessors, (575), 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) [2022-11-20 12:34:21,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:21,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 351 [2022-11-20 12:34:21,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:34:24,159 INFO L130 PetriNetUnfolder]: 375/3216 cut-off events. [2022-11-20 12:34:24,159 INFO L131 PetriNetUnfolder]: For 241/241 co-relation queries the response was YES. [2022-11-20 12:34:24,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3788 conditions, 3216 events. 375/3216 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 31012 event pairs, 220 based on Foata normal form. 316/3227 useless extension candidates. Maximal degree in co-relation 689. Up to 376 conditions per place. [2022-11-20 12:34:24,202 INFO L137 encePairwiseOnDemand]: 301/351 looper letters, 15 selfloop transitions, 0 changer transitions 0/296 dead transitions. [2022-11-20 12:34:24,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 296 transitions, 643 flow [2022-11-20 12:34:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:34:24,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:34:24,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 637 transitions. [2022-11-20 12:34:24,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2022-11-20 12:34:24,205 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 637 transitions. [2022-11-20 12:34:24,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 637 transitions. [2022-11-20 12:34:24,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:34:24,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 637 transitions. [2022-11-20 12:34:24,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 318.5) internal successors, (637), 2 states have internal predecessors, (637), 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) [2022-11-20 12:34:24,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 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) [2022-11-20 12:34:24,214 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 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) [2022-11-20 12:34:24,214 INFO L175 Difference]: Start difference. First operand has 336 places, 351 transitions, 723 flow. Second operand 2 states and 637 transitions. [2022-11-20 12:34:24,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 296 transitions, 643 flow [2022-11-20 12:34:24,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 296 transitions, 637 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-20 12:34:24,232 INFO L231 Difference]: Finished difference. Result has 289 places, 296 transitions, 607 flow [2022-11-20 12:34:24,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=607, PETRI_PLACES=289, PETRI_TRANSITIONS=296} [2022-11-20 12:34:24,234 INFO L288 CegarLoopForPetriNet]: 336 programPoint places, -47 predicate places. [2022-11-20 12:34:24,235 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 296 transitions, 607 flow [2022-11-20 12:34:24,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 287.5) internal successors, (575), 2 states have internal predecessors, (575), 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) [2022-11-20 12:34:24,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:34:24,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:24,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:34:24,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-20 12:34:24,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1516496891, now seen corresponding path program 1 times [2022-11-20 12:34:24,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:24,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030603955] [2022-11-20 12:34:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:24,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:24,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030603955] [2022-11-20 12:34:24,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030603955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:24,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:24,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:34:24,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355471110] [2022-11-20 12:34:24,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:24,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:34:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:34:24,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:34:24,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 351 [2022-11-20 12:34:24,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 296 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 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) [2022-11-20 12:34:24,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:34:24,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 351 [2022-11-20 12:34:24,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand