./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8 --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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- 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-e04fb08 [2022-11-16 11:54:15,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:54:15,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:54:15,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:54:15,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:54:15,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:54:15,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:54:15,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:54:15,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:54:15,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:54:15,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:54:15,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:54:15,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:54:15,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:54:15,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:54:15,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:54:15,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:54:15,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:54:15,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:54:15,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:54:15,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:54:15,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:54:15,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:54:15,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:54:15,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:54:15,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:54:15,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:54:15,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:54:15,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:54:15,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:54:15,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:54:15,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:54:15,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:54:15,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:54:15,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:54:15,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:54:15,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:54:15,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:54:15,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:54:15,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:54:15,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:54:15,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:54:15,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:54:15,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:54:15,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:54:15,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:54:15,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:54:15,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:54:15,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:54:15,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:54:15,654 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:54:15,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:54:15,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:54:15,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:54:15,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:54:15,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:54:15,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:54:15,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:54:15,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:54:15,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:54:15,667 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:54:15,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:54:15,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:54:15,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:54:15,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:54:15,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:54:15,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:54:15,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:54:15,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:15,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:54:15,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:54:15,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:54:15,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:54:15,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:54:15,681 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:54:15,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:54:15,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:54:15,682 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_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2022-11-16 11:54:15,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:54:15,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:54:15,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:54:15,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:54:15,974 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:54:15,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-16 11:54:16,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/data/efeef8390/1462a73fb1884b6d82bc7777c3268f84/FLAG443d59cb2 [2022-11-16 11:54:16,624 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:54:16,625 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-16 11:54:16,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/data/efeef8390/1462a73fb1884b6d82bc7777c3268f84/FLAG443d59cb2 [2022-11-16 11:54:17,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/data/efeef8390/1462a73fb1884b6d82bc7777c3268f84 [2022-11-16 11:54:17,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:54:17,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:54:17,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:17,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:54:17,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:54:17,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324fb99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17, skipping insertion in model container [2022-11-16 11:54:17,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:54:17,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:54:17,313 WARN L229 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_19145ae1-4f99-41b7-8950-d2221e2ecaa3/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-16 11:54:17,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:17,768 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:54:17,780 WARN L229 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_19145ae1-4f99-41b7-8950-d2221e2ecaa3/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-16 11:54:17,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:17,877 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:54:17,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17 WrapperNode [2022-11-16 11:54:17,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:17,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:17,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:54:17,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:54:17,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,926 INFO L138 Inliner]: procedures = 365, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-11-16 11:54:17,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:17,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:54:17,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:54:17,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:54:17,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:54:17,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:54:17,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:54:17,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:54:17,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (1/1) ... [2022-11-16 11:54:17,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:17,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:18,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:54:18,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:54:18,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-11-16 11:54:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-11-16 11:54:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:54:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:54:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:54:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:54:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:54:18,060 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:54:18,318 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:54:18,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:54:18,575 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:54:18,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:54:18,607 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:54:18,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:18 BoogieIcfgContainer [2022-11-16 11:54:18,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:54:18,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:54:18,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:54:18,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:54:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:54:17" (1/3) ... [2022-11-16 11:54:18,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e50edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:18, skipping insertion in model container [2022-11-16 11:54:18,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:17" (2/3) ... [2022-11-16 11:54:18,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e50edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:18, skipping insertion in model container [2022-11-16 11:54:18,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:18" (3/3) ... [2022-11-16 11:54:18,620 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2022-11-16 11:54:18,629 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:54:18,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:54:18,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-16 11:54:18,641 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:54:18,699 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:54:18,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 115 transitions, 238 flow [2022-11-16 11:54:18,848 INFO L130 PetriNetUnfolder]: 7/114 cut-off events. [2022-11-16 11:54:18,848 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:54:18,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 7/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-11-16 11:54:18,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 115 transitions, 238 flow [2022-11-16 11:54:18,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 106 transitions, 218 flow [2022-11-16 11:54:18,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:54:18,893 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;@807d7af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:54:18,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 11:54:18,920 INFO L130 PetriNetUnfolder]: 2/55 cut-off events. [2022-11-16 11:54:18,921 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:54:18,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:18,922 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] [2022-11-16 11:54:18,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1125343474, now seen corresponding path program 1 times [2022-11-16 11:54:18,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:18,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013711434] [2022-11-16 11:54:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:19,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:19,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013711434] [2022-11-16 11:54:19,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013711434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:19,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:19,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:54:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617775824] [2022-11-16 11:54:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:19,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:54:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:19,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:54:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:54:19,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 115 [2022-11-16 11:54:19,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 106 transitions, 218 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2022-11-16 11:54:19,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:19,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 115 [2022-11-16 11:54:19,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:19,271 INFO L130 PetriNetUnfolder]: 5/108 cut-off events. [2022-11-16 11:54:19,272 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-16 11:54:19,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 108 events. 5/108 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 2 based on Foata normal form. 9/108 useless extension candidates. Maximal degree in co-relation 63. Up to 11 conditions per place. [2022-11-16 11:54:19,274 INFO L137 encePairwiseOnDemand]: 106/115 looper letters, 5 selfloop transitions, 0 changer transitions 1/94 dead transitions. [2022-11-16 11:54:19,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 94 transitions, 204 flow [2022-11-16 11:54:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:54:19,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:54:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 210 transitions. [2022-11-16 11:54:19,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9130434782608695 [2022-11-16 11:54:19,289 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 210 transitions. [2022-11-16 11:54:19,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 210 transitions. [2022-11-16 11:54:19,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:19,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 210 transitions. [2022-11-16 11:54:19,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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) [2022-11-16 11:54:19,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2022-11-16 11:54:19,301 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2022-11-16 11:54:19,303 INFO L175 Difference]: Start difference. First operand has 103 places, 106 transitions, 218 flow. Second operand 2 states and 210 transitions. [2022-11-16 11:54:19,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 94 transitions, 204 flow [2022-11-16 11:54:19,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:19,310 INFO L231 Difference]: Finished difference. Result has 95 places, 93 transitions, 188 flow [2022-11-16 11:54:19,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=95, PETRI_TRANSITIONS=93} [2022-11-16 11:54:19,316 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, -8 predicate places. [2022-11-16 11:54:19,317 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 93 transitions, 188 flow [2022-11-16 11:54:19,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2022-11-16 11:54:19,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:19,318 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] [2022-11-16 11:54:19,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:54:19,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1879945142, now seen corresponding path program 1 times [2022-11-16 11:54:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:19,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461553100] [2022-11-16 11:54:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:19,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:19,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461553100] [2022-11-16 11:54:19,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461553100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:19,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:19,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:54:19,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055401448] [2022-11-16 11:54:19,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:19,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:19,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:19,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2022-11-16 11:54:19,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 93 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2022-11-16 11:54:19,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:19,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2022-11-16 11:54:19,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:19,579 INFO L130 PetriNetUnfolder]: 28/168 cut-off events. [2022-11-16 11:54:19,583 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-11-16 11:54:19,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 168 events. 28/168 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 404 event pairs, 10 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 229. Up to 41 conditions per place. [2022-11-16 11:54:19,589 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 16 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2022-11-16 11:54:19,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 236 flow [2022-11-16 11:54:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2022-11-16 11:54:19,598 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8463768115942029 [2022-11-16 11:54:19,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2022-11-16 11:54:19,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2022-11-16 11:54:19,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:19,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2022-11-16 11:54:19,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-11-16 11:54:19,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:19,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:19,611 INFO L175 Difference]: Start difference. First operand has 95 places, 93 transitions, 188 flow. Second operand 3 states and 292 transitions. [2022-11-16 11:54:19,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 236 flow [2022-11-16 11:54:19,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 99 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:54:19,615 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 200 flow [2022-11-16 11:54:19,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2022-11-16 11:54:19,617 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, -6 predicate places. [2022-11-16 11:54:19,617 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 200 flow [2022-11-16 11:54:19,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2022-11-16 11:54:19,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:19,618 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] [2022-11-16 11:54:19,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:54:19,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:19,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:19,619 INFO L85 PathProgramCache]: Analyzing trace with hash -667697469, now seen corresponding path program 1 times [2022-11-16 11:54:19,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:19,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321962126] [2022-11-16 11:54:19,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:19,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321962126] [2022-11-16 11:54:19,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321962126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:54:19,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560661473] [2022-11-16 11:54:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:19,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:19,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:54:19,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:54:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:19,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:54:19,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:54:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:20,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:54:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:20,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560661473] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:54:20,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:54:20,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:54:20,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600155367] [2022-11-16 11:54:20,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:54:20,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:54:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:54:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:54:20,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 115 [2022-11-16 11:54:20,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 200 flow. Second operand has 10 states, 10 states have (on average 92.2) internal successors, (922), 10 states have internal predecessors, (922), 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) [2022-11-16 11:54:20,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:20,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 115 [2022-11-16 11:54:20,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:20,302 INFO L130 PetriNetUnfolder]: 42/201 cut-off events. [2022-11-16 11:54:20,303 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 11:54:20,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 201 events. 42/201 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 591 event pairs, 6 based on Foata normal form. 6/195 useless extension candidates. Maximal degree in co-relation 318. Up to 26 conditions per place. [2022-11-16 11:54:20,305 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 29 selfloop transitions, 9 changer transitions 0/118 dead transitions. [2022-11-16 11:54:20,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 118 transitions, 326 flow [2022-11-16 11:54:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:54:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:54:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 850 transitions. [2022-11-16 11:54:20,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.821256038647343 [2022-11-16 11:54:20,308 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 850 transitions. [2022-11-16 11:54:20,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 850 transitions. [2022-11-16 11:54:20,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:20,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 850 transitions. [2022-11-16 11:54:20,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.44444444444444) internal successors, (850), 9 states have internal predecessors, (850), 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) [2022-11-16 11:54:20,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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) [2022-11-16 11:54:20,316 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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) [2022-11-16 11:54:20,317 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 200 flow. Second operand 9 states and 850 transitions. [2022-11-16 11:54:20,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 118 transitions, 326 flow [2022-11-16 11:54:20,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:54:20,320 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 248 flow [2022-11-16 11:54:20,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=248, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2022-11-16 11:54:20,321 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 4 predicate places. [2022-11-16 11:54:20,321 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 248 flow [2022-11-16 11:54:20,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 92.2) internal successors, (922), 10 states have internal predecessors, (922), 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) [2022-11-16 11:54:20,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:20,323 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:20,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:54:20,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:20,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1678368547, now seen corresponding path program 2 times [2022-11-16 11:54:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541275114] [2022-11-16 11:54:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:20,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541275114] [2022-11-16 11:54:20,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541275114] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:54:20,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118059532] [2022-11-16 11:54:20,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:54:20,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:20,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:20,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:54:20,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:54:21,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:54:21,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:54:21,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 11:54:21,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:54:21,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:54:21,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 11:54:21,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:54:21,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 11:54:21,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:54:21,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:54:21,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-16 11:54:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:54:21,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:54:21,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118059532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:21,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:54:21,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-11-16 11:54:21,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380602741] [2022-11-16 11:54:21,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:21,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:54:21,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:21,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:54:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:54:21,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 115 [2022-11-16 11:54:21,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 248 flow. Second operand has 7 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 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) [2022-11-16 11:54:21,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:21,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 115 [2022-11-16 11:54:21,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:21,586 INFO L130 PetriNetUnfolder]: 30/185 cut-off events. [2022-11-16 11:54:21,586 INFO L131 PetriNetUnfolder]: For 6/11 co-relation queries the response was YES. [2022-11-16 11:54:21,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 185 events. 30/185 cut-off events. For 6/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 433 event pairs, 8 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2022-11-16 11:54:21,592 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 17 selfloop transitions, 5 changer transitions 0/107 dead transitions. [2022-11-16 11:54:21,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 107 transitions, 306 flow [2022-11-16 11:54:21,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:54:21,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:54:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 625 transitions. [2022-11-16 11:54:21,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7763975155279503 [2022-11-16 11:54:21,597 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 625 transitions. [2022-11-16 11:54:21,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 625 transitions. [2022-11-16 11:54:21,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:21,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 625 transitions. [2022-11-16 11:54:21,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 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) [2022-11-16 11:54:21,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 11:54:21,606 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 11:54:21,606 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 248 flow. Second operand 7 states and 625 transitions. [2022-11-16 11:54:21,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 107 transitions, 306 flow [2022-11-16 11:54:21,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 107 transitions, 300 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 11:54:21,612 INFO L231 Difference]: Finished difference. Result has 111 places, 99 transitions, 250 flow [2022-11-16 11:54:21,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=250, PETRI_PLACES=111, PETRI_TRANSITIONS=99} [2022-11-16 11:54:21,614 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 8 predicate places. [2022-11-16 11:54:21,614 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 99 transitions, 250 flow [2022-11-16 11:54:21,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 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) [2022-11-16 11:54:21,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:21,615 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:21,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:54:21,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:21,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:21,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1109542004, now seen corresponding path program 1 times [2022-11-16 11:54:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365146756] [2022-11-16 11:54:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:21,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:54:21,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:21,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365146756] [2022-11-16 11:54:21,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365146756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:21,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:21,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:54:21,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698311732] [2022-11-16 11:54:21,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:21,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:21,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:21,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2022-11-16 11:54:21,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 99 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2022-11-16 11:54:21,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:21,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2022-11-16 11:54:21,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:22,001 INFO L130 PetriNetUnfolder]: 41/209 cut-off events. [2022-11-16 11:54:22,001 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:54:22,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 209 events. 41/209 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 730 event pairs, 21 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 330. Up to 59 conditions per place. [2022-11-16 11:54:22,003 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 15 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-16 11:54:22,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 105 transitions, 296 flow [2022-11-16 11:54:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2022-11-16 11:54:22,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8521739130434782 [2022-11-16 11:54:22,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2022-11-16 11:54:22,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2022-11-16 11:54:22,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:22,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2022-11-16 11:54:22,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2022-11-16 11:54:22,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:22,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:22,009 INFO L175 Difference]: Start difference. First operand has 111 places, 99 transitions, 250 flow. Second operand 3 states and 294 transitions. [2022-11-16 11:54:22,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 105 transitions, 296 flow [2022-11-16 11:54:22,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 287 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:54:22,013 INFO L231 Difference]: Finished difference. Result has 109 places, 100 transitions, 253 flow [2022-11-16 11:54:22,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=109, PETRI_TRANSITIONS=100} [2022-11-16 11:54:22,017 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 6 predicate places. [2022-11-16 11:54:22,017 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 100 transitions, 253 flow [2022-11-16 11:54:22,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2022-11-16 11:54:22,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:22,018 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:22,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:54:22,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2022-11-16 11:54:22,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:22,019 INFO L85 PathProgramCache]: Analyzing trace with hash -298335374, now seen corresponding path program 1 times [2022-11-16 11:54:22,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:22,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134996672] [2022-11-16 11:54:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:22,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:54:22,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:22,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134996672] [2022-11-16 11:54:22,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134996672] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:54:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345508213] [2022-11-16 11:54:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:22,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:22,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:22,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:54:22,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:54:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:22,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:54:22,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:54:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:54:22,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:54:22,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345508213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:22,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:54:22,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 11:54:22,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725492223] [2022-11-16 11:54:22,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:22,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:22,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:54:22,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2022-11-16 11:54:22,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 100 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-16 11:54:22,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:22,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2022-11-16 11:54:22,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:22,319 INFO L130 PetriNetUnfolder]: 23/219 cut-off events. [2022-11-16 11:54:22,319 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 11:54:22,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 219 events. 23/219 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 640 event pairs, 10 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 346. Up to 36 conditions per place. [2022-11-16 11:54:22,321 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2022-11-16 11:54:22,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 100 transitions, 273 flow [2022-11-16 11:54:22,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-11-16 11:54:22,322 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8347826086956521 [2022-11-16 11:54:22,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-11-16 11:54:22,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-11-16 11:54:22,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:22,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-11-16 11:54:22,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2022-11-16 11:54:22,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:22,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-16 11:54:22,325 INFO L175 Difference]: Start difference. First operand has 109 places, 100 transitions, 253 flow. Second operand 3 states and 288 transitions. [2022-11-16 11:54:22,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 100 transitions, 273 flow [2022-11-16 11:54:22,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 100 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:54:22,328 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2022-11-16 11:54:22,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2022-11-16 11:54:22,328 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 5 predicate places. [2022-11-16 11:54:22,329 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2022-11-16 11:54:22,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-16 11:54:22,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-11-16 11:54:22,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-11-16 11:54:22,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-11-16 11:54:22,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_dataraceErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-11-16 11:54:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_dataraceErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-11-16 11:54:22,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:54:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:54:22,539 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-16 11:54:22,546 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:54:22,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:54:22,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:54:22 BasicIcfg [2022-11-16 11:54:22,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:54:22,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:54:22,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:54:22,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:54:22,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:18" (3/4) ... [2022-11-16 11:54:22,564 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:54:22,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_datarace [2022-11-16 11:54:22,584 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-16 11:54:22,584 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 11:54:22,585 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:54:22,585 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:54:22,585 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:54:22,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:54:22,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:54:22,642 INFO L158 Benchmark]: Toolchain (without parser) took 5581.85ms. Allocated memory was 113.2MB in the beginning and 182.5MB in the end (delta: 69.2MB). Free memory was 88.3MB in the beginning and 79.7MB in the end (delta: 8.6MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,642 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 83.3MB in the beginning and 83.2MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:54:22,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.69ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 57.7MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.87ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 55.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,643 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory is still 113.2MB. Free memory was 55.1MB in the beginning and 53.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,643 INFO L158 Benchmark]: RCFGBuilder took 638.67ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 53.3MB in the beginning and 113.4MB in the end (delta: -60.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,644 INFO L158 Benchmark]: TraceAbstraction took 3946.32ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 112.7MB in the beginning and 82.7MB in the end (delta: 30.0MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,644 INFO L158 Benchmark]: Witness Printer took 82.51ms. Allocated memory is still 182.5MB. Free memory was 82.7MB in the beginning and 79.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:54:22,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 83.3MB in the beginning and 83.2MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.69ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 57.7MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.87ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 55.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.10ms. Allocated memory is still 113.2MB. Free memory was 55.1MB in the beginning and 53.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.67ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 53.3MB in the beginning and 113.4MB in the end (delta: -60.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3946.32ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 112.7MB in the beginning and 82.7MB in the end (delta: 30.0MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Witness Printer took 82.51ms. Allocated memory is still 182.5MB. Free memory was 82.7MB in the beginning and 79.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1355]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1355]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1358]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1362]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1363]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1328]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1333]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 127 locations, 10 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: 3.8s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 18 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253occurred in iteration=5, InterpolantAutomatonStates: 27, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 612 NumberOfCodeBlocks, 597 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 661 ConstructedInterpolants, 0 QuantifiedInterpolants, 913 SizeOfPredicates, 2 NumberOfNonLiveVariables, 497 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 73/95 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:54:22,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19145ae1-4f99-41b7-8950-d2221e2ecaa3/bin/uautomizer-tPACEb0tL8/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 Result: TRUE