./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro --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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- 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-8393723 [2022-11-18 18:26:17,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:26:17,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:26:17,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:26:17,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:26:17,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:26:17,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:26:17,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:26:17,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:26:17,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:26:17,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:26:17,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:26:17,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:26:17,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:26:17,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:26:17,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:26:17,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:26:17,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:26:17,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:26:17,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:26:17,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:26:17,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:26:17,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:26:17,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:26:17,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:26:17,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:26:17,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:26:17,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:26:17,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:26:17,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:26:17,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:26:17,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:26:17,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:26:17,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:26:17,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:26:17,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:26:17,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:26:17,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:26:17,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:26:17,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:26:17,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:26:17,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:26:17,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:26:17,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:26:17,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:26:17,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:26:17,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:26:17,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:26:17,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:26:17,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:26:17,562 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:26:17,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:26:17,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:26:17,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:26:17,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:26:17,565 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:26:17,565 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:26:17,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:26:17,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:26:17,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:26:17,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:26:17,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:26:17,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:26:17,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:17,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:26:17,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:26:17,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:26:17,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:26:17,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:26:17,567 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:26:17,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:26:17,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:26:17,568 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_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2022-11-18 18:26:17,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:26:17,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:26:17,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:26:17,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:26:17,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:26:17,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2022-11-18 18:26:17,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/data/ed5b15b30/d5bdfdd3a3ae47acbe714465c3ac096d/FLAG46acfe2ba [2022-11-18 18:26:18,620 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:26:18,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2022-11-18 18:26:18,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/data/ed5b15b30/d5bdfdd3a3ae47acbe714465c3ac096d/FLAG46acfe2ba [2022-11-18 18:26:18,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/data/ed5b15b30/d5bdfdd3a3ae47acbe714465c3ac096d [2022-11-18 18:26:18,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:26:18,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:26:18,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:18,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:26:18,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:26:18,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:18" (1/1) ... [2022-11-18 18:26:18,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e359314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:18, skipping insertion in model container [2022-11-18 18:26:18,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:18" (1/1) ... [2022-11-18 18:26:18,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:26:18,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:26:20,046 WARN L234 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_926541e8-2df8-430b-9569-b4296ac4f2e3/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2022-11-18 18:26:20,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:20,098 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:26:20,169 WARN L234 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_926541e8-2df8-430b-9569-b4296ac4f2e3/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2022-11-18 18:26:20,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:20,308 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:26:20,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20 WrapperNode [2022-11-18 18:26:20,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:20,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:20,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:26:20,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:26:20,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,426 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2022-11-18 18:26:20,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:20,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:26:20,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:26:20,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:26:20,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:26:20,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:26:20,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:26:20,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:26:20,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (1/1) ... [2022-11-18 18:26:20,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:20,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:26:20,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:26:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:26:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:26:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:26:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:26:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:26:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:26:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:26:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:26:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:26:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:26:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:26:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:26:20,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:26:21,027 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:26:21,029 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:26:21,239 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:26:21,247 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:26:21,248 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:26:21,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:21 BoogieIcfgContainer [2022-11-18 18:26:21,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:26:21,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:26:21,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:26:21,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:26:21,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:26:18" (1/3) ... [2022-11-18 18:26:21,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c4b045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:21, skipping insertion in model container [2022-11-18 18:26:21,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:20" (2/3) ... [2022-11-18 18:26:21,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c4b045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:21, skipping insertion in model container [2022-11-18 18:26:21,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:21" (3/3) ... [2022-11-18 18:26:21,263 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2022-11-18 18:26:21,273 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:26:21,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:26:21,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 18:26:21,284 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:26:21,372 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 18:26:21,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2022-11-18 18:26:21,478 INFO L130 PetriNetUnfolder]: 5/173 cut-off events. [2022-11-18 18:26:21,479 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:26:21,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 173 events. 5/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2022-11-18 18:26:21,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 153 transitions, 314 flow [2022-11-18 18:26:21,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 284 flow [2022-11-18 18:26:21,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:21,507 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;@61e379ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:21,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 18:26:21,514 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-18 18:26:21,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:26:21,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:21,515 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] [2022-11-18 18:26:21,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:21,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:21,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1974195697, now seen corresponding path program 1 times [2022-11-18 18:26:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:21,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234698113] [2022-11-18 18:26:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:21,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:21,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234698113] [2022-11-18 18:26:21,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234698113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:21,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220158047] [2022-11-18 18:26:21,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:22,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:22,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:22,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 18:26:22,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:22,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 18:26:22,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:22,172 INFO L130 PetriNetUnfolder]: 18/293 cut-off events. [2022-11-18 18:26:22,172 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:26:22,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 293 events. 18/293 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1024 event pairs, 18 based on Foata normal form. 6/261 useless extension candidates. Maximal degree in co-relation 237. Up to 65 conditions per place. [2022-11-18 18:26:22,176 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 28 selfloop transitions, 2 changer transitions 2/132 dead transitions. [2022-11-18 18:26:22,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 330 flow [2022-11-18 18:26:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-11-18 18:26:22,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126361655773421 [2022-11-18 18:26:22,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-11-18 18:26:22,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-11-18 18:26:22,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:22,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-11-18 18:26:22,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,209 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 284 flow. Second operand 3 states and 373 transitions. [2022-11-18 18:26:22,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 330 flow [2022-11-18 18:26:22,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:22,218 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 266 flow [2022-11-18 18:26:22,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2022-11-18 18:26:22,224 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2022-11-18 18:26:22,224 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 266 flow [2022-11-18 18:26:22,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:22,226 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] [2022-11-18 18:26:22,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:26:22,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2017841198, now seen corresponding path program 1 times [2022-11-18 18:26:22,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:22,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390286617] [2022-11-18 18:26:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:22,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:22,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:22,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390286617] [2022-11-18 18:26:22,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390286617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:22,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:22,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:22,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383988107] [2022-11-18 18:26:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:22,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:22,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:22,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:22,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2022-11-18 18:26:22,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:22,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2022-11-18 18:26:22,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:22,475 INFO L130 PetriNetUnfolder]: 19/303 cut-off events. [2022-11-18 18:26:22,475 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-18 18:26:22,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 303 events. 19/303 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1094 event pairs, 8 based on Foata normal form. 2/272 useless extension candidates. Maximal degree in co-relation 337. Up to 46 conditions per place. [2022-11-18 18:26:22,478 INFO L137 encePairwiseOnDemand]: 140/153 looper letters, 21 selfloop transitions, 8 changer transitions 3/134 dead transitions. [2022-11-18 18:26:22,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 337 flow [2022-11-18 18:26:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-11-18 18:26:22,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8344226579520697 [2022-11-18 18:26:22,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-11-18 18:26:22,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-11-18 18:26:22,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:22,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-11-18 18:26:22,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,488 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 266 flow. Second operand 3 states and 383 transitions. [2022-11-18 18:26:22,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 337 flow [2022-11-18 18:26:22,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:22,493 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 300 flow [2022-11-18 18:26:22,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2022-11-18 18:26:22,494 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2022-11-18 18:26:22,494 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 300 flow [2022-11-18 18:26:22,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:22,495 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, 1, 1, 1] [2022-11-18 18:26:22,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:26:22,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1498933869, now seen corresponding path program 1 times [2022-11-18 18:26:22,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:22,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434797022] [2022-11-18 18:26:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:22,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:22,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:22,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434797022] [2022-11-18 18:26:22,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434797022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:22,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:22,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:22,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080896446] [2022-11-18 18:26:22,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:22,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:22,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:22,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 18:26:22,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:22,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 18:26:22,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:22,704 INFO L130 PetriNetUnfolder]: 19/299 cut-off events. [2022-11-18 18:26:22,705 INFO L131 PetriNetUnfolder]: For 40/43 co-relation queries the response was YES. [2022-11-18 18:26:22,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 19/299 cut-off events. For 40/43 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1087 event pairs, 12 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 55. Up to 66 conditions per place. [2022-11-18 18:26:22,707 INFO L137 encePairwiseOnDemand]: 150/153 looper letters, 26 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-11-18 18:26:22,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 354 flow [2022-11-18 18:26:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2022-11-18 18:26:22,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930283224400871 [2022-11-18 18:26:22,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2022-11-18 18:26:22,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2022-11-18 18:26:22,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:22,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2022-11-18 18:26:22,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,715 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 300 flow. Second operand 3 states and 364 transitions. [2022-11-18 18:26:22,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 354 flow [2022-11-18 18:26:22,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:22,723 INFO L231 Difference]: Finished difference. Result has 128 places, 127 transitions, 286 flow [2022-11-18 18:26:22,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2022-11-18 18:26:22,726 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -11 predicate places. [2022-11-18 18:26:22,727 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 286 flow [2022-11-18 18:26:22,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:22,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:22,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:26:22,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:22,731 INFO L85 PathProgramCache]: Analyzing trace with hash -733554889, now seen corresponding path program 1 times [2022-11-18 18:26:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:22,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227972222] [2022-11-18 18:26:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:22,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:22,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227972222] [2022-11-18 18:26:22,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227972222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:22,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:22,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:22,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839521435] [2022-11-18 18:26:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:22,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:22,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:22,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:22,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 153 [2022-11-18 18:26:22,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:22,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 153 [2022-11-18 18:26:22,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:22,980 INFO L130 PetriNetUnfolder]: 28/319 cut-off events. [2022-11-18 18:26:22,980 INFO L131 PetriNetUnfolder]: For 17/20 co-relation queries the response was YES. [2022-11-18 18:26:22,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 319 events. 28/319 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1187 event pairs, 13 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 398. Up to 73 conditions per place. [2022-11-18 18:26:22,982 INFO L137 encePairwiseOnDemand]: 148/153 looper letters, 28 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2022-11-18 18:26:22,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 132 transitions, 364 flow [2022-11-18 18:26:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-11-18 18:26:22,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2022-11-18 18:26:22,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-11-18 18:26:22,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-11-18 18:26:22,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:22,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-11-18 18:26:22,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,989 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 286 flow. Second operand 3 states and 369 transitions. [2022-11-18 18:26:22,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 132 transitions, 364 flow [2022-11-18 18:26:22,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:22,993 INFO L231 Difference]: Finished difference. Result has 130 places, 130 transitions, 318 flow [2022-11-18 18:26:22,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2022-11-18 18:26:22,994 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -9 predicate places. [2022-11-18 18:26:22,995 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 318 flow [2022-11-18 18:26:22,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:22,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:22,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:26:22,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:22,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:22,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1431600525, now seen corresponding path program 1 times [2022-11-18 18:26:22,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:22,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570742998] [2022-11-18 18:26:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:22,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:23,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:23,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570742998] [2022-11-18 18:26:23,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570742998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:23,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:23,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470179825] [2022-11-18 18:26:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:23,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:23,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 153 [2022-11-18 18:26:23,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:23,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:23,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 153 [2022-11-18 18:26:23,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:23,197 INFO L130 PetriNetUnfolder]: 33/405 cut-off events. [2022-11-18 18:26:23,197 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-18 18:26:23,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 405 events. 33/405 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1878 event pairs, 10 based on Foata normal form. 2/379 useless extension candidates. Maximal degree in co-relation 274. Up to 69 conditions per place. [2022-11-18 18:26:23,200 INFO L137 encePairwiseOnDemand]: 147/153 looper letters, 32 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2022-11-18 18:26:23,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 140 transitions, 438 flow [2022-11-18 18:26:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:26:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-11-18 18:26:23,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-11-18 18:26:23,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-11-18 18:26:23,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-11-18 18:26:23,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:23,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-11-18 18:26:23,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:23,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:23,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:23,206 INFO L175 Difference]: Start difference. First operand has 130 places, 130 transitions, 318 flow. Second operand 3 states and 374 transitions. [2022-11-18 18:26:23,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 140 transitions, 438 flow [2022-11-18 18:26:23,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 422 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-18 18:26:23,211 INFO L231 Difference]: Finished difference. Result has 132 places, 134 transitions, 358 flow [2022-11-18 18:26:23,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=132, PETRI_TRANSITIONS=134} [2022-11-18 18:26:23,212 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -7 predicate places. [2022-11-18 18:26:23,213 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 134 transitions, 358 flow [2022-11-18 18:26:23,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:23,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:23,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:23,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:26:23,214 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-18 18:26:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1618233334, now seen corresponding path program 1 times [2022-11-18 18:26:23,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:23,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025231747] [2022-11-18 18:26:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:23,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:26:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:26:23,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:26:23,289 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:26:23,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-18 18:26:23,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-18 18:26:23,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-18 18:26:23,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-18 18:26:23,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-18 18:26:23,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-18 18:26:23,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-18 18:26:23,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-18 18:26:23,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-18 18:26:23,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-18 18:26:23,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-11-18 18:26:23,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-11-18 18:26:23,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:26:23,296 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 18:26:23,304 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:26:23,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:26:23,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:26:23 BasicIcfg [2022-11-18 18:26:23,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:26:23,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:26:23,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:26:23,361 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:26:23,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:21" (3/4) ... [2022-11-18 18:26:23,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:26:23,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:26:23,366 INFO L158 Benchmark]: Toolchain (without parser) took 4515.53ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 70.2MB in the beginning and 74.8MB in the end (delta: -4.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,366 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:26:23,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1458.17ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 38.0MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.22ms. Allocated memory is still 107.0MB. Free memory was 38.0MB in the beginning and 82.0MB in the end (delta: -44.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,377 INFO L158 Benchmark]: Boogie Preprocessor took 89.09ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 79.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,378 INFO L158 Benchmark]: RCFGBuilder took 730.20ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 57.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,378 INFO L158 Benchmark]: TraceAbstraction took 2107.40ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 57.4MB in the beginning and 75.8MB in the end (delta: -18.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-18 18:26:23,381 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 134.2MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:26:23,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1458.17ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 38.0MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.22ms. Allocated memory is still 107.0MB. Free memory was 38.0MB in the beginning and 82.0MB in the end (delta: -44.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.09ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 79.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 730.20ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 57.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2107.40ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 57.4MB in the beginning and 75.8MB in the end (delta: -18.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 134.2MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1709]: Data race detected Data race detected The following path leads to a data race: [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0] [L1694] 0 pthread_t t1; VAL [mutex={3:0}, pdev=0, t1={4:0}] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={4:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={3:0}, pdev=1, t1={4:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1={4:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={3:0}, pdev=1, t1={4:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={4:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={4:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={4:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, pdev = 2=1152, t1={4:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, pdev = 6=1151, t1={4:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, pdev = 2=1152, pdev = 6=1151, t1={4:0}] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 2 [1709] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 162 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 110 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:26:23,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926541e8-2df8-430b-9569-b4296ac4f2e3/bin/uautomizer-TMbwUNV5ro/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