./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/bigshot_s2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/bigshot_s2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:07:00,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:07:00,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:07:00,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:07:00,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:07:00,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:07:00,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:07:00,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:07:00,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:07:00,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:07:00,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:07:00,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:07:00,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:07:00,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:07:00,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:07:00,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:07:00,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:07:00,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:07:00,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:07:00,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:07:00,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:07:00,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:07:00,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:07:00,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:07:00,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:07:00,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:07:00,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:07:00,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:07:00,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:07:00,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:07:00,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:07:00,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:07:00,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:07:00,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:07:00,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:07:00,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:07:00,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:07:00,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:07:00,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:07:00,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:07:00,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:07:00,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:07:00,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:07:00,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:07:00,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:07:00,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:07:00,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:07:00,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:07:00,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:07:00,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:07:00,674 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:07:00,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:07:00,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:07:00,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:07:00,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:07:00,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:07:00,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:07:00,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:07:00,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:07:00,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:07:00,678 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:07:00,678 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:07:00,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:07:00,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:07:00,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:07:00,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:07:00,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:07:00,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:07:00,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:07:00,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:07:00,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:07:00,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:07:00,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:07:00,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:07:00,684 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:07:00,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:07:00,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:07:00,685 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_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb [2022-11-02 21:07:01,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:07:01,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:07:01,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:07:01,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:07:01,084 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:07:01,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread/bigshot_s2.i [2022-11-02 21:07:01,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/data/68b2eafe4/53a54df6ce924d20b9ac0fe7be165b9b/FLAG5a0c776de [2022-11-02 21:07:01,945 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:07:01,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/sv-benchmarks/c/pthread/bigshot_s2.i [2022-11-02 21:07:01,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/data/68b2eafe4/53a54df6ce924d20b9ac0fe7be165b9b/FLAG5a0c776de [2022-11-02 21:07:02,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/data/68b2eafe4/53a54df6ce924d20b9ac0fe7be165b9b [2022-11-02 21:07:02,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:07:02,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:07:02,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:07:02,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:07:02,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:07:02,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:02" (1/1) ... [2022-11-02 21:07:02,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4567ed24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:02, skipping insertion in model container [2022-11-02 21:07:02,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:02" (1/1) ... [2022-11-02 21:07:02,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:07:02,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:07:02,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/sv-benchmarks/c/pthread/bigshot_s2.i[55203,55216] [2022-11-02 21:07:02,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:07:02,939 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:07:03,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/sv-benchmarks/c/pthread/bigshot_s2.i[55203,55216] [2022-11-02 21:07:03,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:07:03,121 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:07:03,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03 WrapperNode [2022-11-02 21:07:03,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:07:03,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:07:03,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:07:03,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:07:03,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,210 INFO L138 Inliner]: procedures = 323, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-11-02 21:07:03,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:07:03,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:07:03,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:07:03,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:07:03,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:07:03,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:07:03,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:07:03,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:07:03,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (1/1) ... [2022-11-02 21:07:03,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:07:03,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:03,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:07:03,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:07:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:07:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:07:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:07:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:07:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:07:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:07:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:07:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:07:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:07:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:07:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:07:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:07:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:07:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:07:03,405 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:07:03,587 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:07:03,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:07:03,896 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:07:03,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:07:03,922 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:07:03,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:03 BoogieIcfgContainer [2022-11-02 21:07:03,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:07:03,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:07:03,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:07:03,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:07:03,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:07:02" (1/3) ... [2022-11-02 21:07:03,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b409752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:03, skipping insertion in model container [2022-11-02 21:07:03,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:03" (2/3) ... [2022-11-02 21:07:03,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b409752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:03, skipping insertion in model container [2022-11-02 21:07:03,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:03" (3/3) ... [2022-11-02 21:07:03,948 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2022-11-02 21:07:03,958 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:07:03,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:07:03,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-02 21:07:03,972 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:07:04,048 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:07:04,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 110 transitions, 236 flow [2022-11-02 21:07:04,206 INFO L130 PetriNetUnfolder]: 4/108 cut-off events. [2022-11-02 21:07:04,209 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:07:04,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 108 events. 4/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-02 21:07:04,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 110 transitions, 236 flow [2022-11-02 21:07:04,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 190 flow [2022-11-02 21:07:04,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:07:04,256 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;@5c2ab173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:07:04,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-02 21:07:04,288 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-02 21:07:04,288 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:07:04,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:04,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:04,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:04,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1802542710, now seen corresponding path program 1 times [2022-11-02 21:07:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:04,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853567496] [2022-11-02 21:07:04,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:04,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:04,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853567496] [2022-11-02 21:07:04,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853567496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:04,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:04,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:07:04,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310908619] [2022-11-02 21:07:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:04,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:07:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:07:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:07:04,790 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2022-11-02 21:07:04,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:04,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:04,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2022-11-02 21:07:04,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:04,931 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2022-11-02 21:07:04,931 INFO L131 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-11-02 21:07:04,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 87 events. 2/87 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 61. Up to 16 conditions per place. [2022-11-02 21:07:04,934 INFO L137 encePairwiseOnDemand]: 106/110 looper letters, 15 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2022-11-02 21:07:04,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 220 flow [2022-11-02 21:07:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:07:04,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:07:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-11-02 21:07:04,966 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-11-02 21:07:04,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2022-11-02 21:07:04,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2022-11-02 21:07:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:04,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2022-11-02 21:07:04,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:04,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,005 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 190 flow. Second operand 3 states and 286 transitions. [2022-11-02 21:07:05,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 220 flow [2022-11-02 21:07:05,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:07:05,022 INFO L231 Difference]: Finished difference. Result has 90 places, 87 transitions, 182 flow [2022-11-02 21:07:05,024 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=90, PETRI_TRANSITIONS=87} [2022-11-02 21:07:05,028 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-11-02 21:07:05,029 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 87 transitions, 182 flow [2022-11-02 21:07:05,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:05,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:05,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:07:05,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:05,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2093240328, now seen corresponding path program 1 times [2022-11-02 21:07:05,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:05,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474503051] [2022-11-02 21:07:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:05,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:05,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474503051] [2022-11-02 21:07:05,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474503051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:05,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:05,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:05,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404299204] [2022-11-02 21:07:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:05,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:05,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:05,775 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-11-02 21:07:05,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:05,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-11-02 21:07:05,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:05,935 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2022-11-02 21:07:05,936 INFO L131 PetriNetUnfolder]: For 1/7 co-relation queries the response was YES. [2022-11-02 21:07:05,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 86 events. 2/86 cut-off events. For 1/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 4/84 useless extension candidates. Maximal degree in co-relation 76. Up to 13 conditions per place. [2022-11-02 21:07:05,939 INFO L137 encePairwiseOnDemand]: 105/110 looper letters, 17 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2022-11-02 21:07:05,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 222 flow [2022-11-02 21:07:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2022-11-02 21:07:05,949 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7787878787878788 [2022-11-02 21:07:05,949 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 514 transitions. [2022-11-02 21:07:05,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 514 transitions. [2022-11-02 21:07:05,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:05,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 514 transitions. [2022-11-02 21:07:05,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,965 INFO L175 Difference]: Start difference. First operand has 90 places, 87 transitions, 182 flow. Second operand 6 states and 514 transitions. [2022-11-02 21:07:05,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 222 flow [2022-11-02 21:07:05,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:07:05,971 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 184 flow [2022-11-02 21:07:05,972 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2022-11-02 21:07:05,973 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2022-11-02 21:07:05,973 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 184 flow [2022-11-02 21:07:05,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:05,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:05,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:05,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:07:05,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:05,976 INFO L85 PathProgramCache]: Analyzing trace with hash -754491597, now seen corresponding path program 1 times [2022-11-02 21:07:05,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:05,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513443455] [2022-11-02 21:07:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:05,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:06,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:06,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513443455] [2022-11-02 21:07:06,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513443455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:06,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:06,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:07:06,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192657957] [2022-11-02 21:07:06,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:06,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:07:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:06,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:07:06,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:07:06,081 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 110 [2022-11-02 21:07:06,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:06,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 110 [2022-11-02 21:07:06,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:06,118 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-02 21:07:06,118 INFO L131 PetriNetUnfolder]: For 2/6 co-relation queries the response was YES. [2022-11-02 21:07:06,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 83 events. 2/83 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 68. Up to 7 conditions per place. [2022-11-02 21:07:06,120 INFO L137 encePairwiseOnDemand]: 106/110 looper letters, 11 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2022-11-02 21:07:06,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 202 flow [2022-11-02 21:07:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:07:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:07:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-11-02 21:07:06,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8727272727272727 [2022-11-02 21:07:06,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-11-02 21:07:06,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-11-02 21:07:06,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:06,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-11-02 21:07:06,124 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) [2022-11-02 21:07:06,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,126 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 184 flow. Second operand 3 states and 288 transitions. [2022-11-02 21:07:06,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 83 transitions, 202 flow [2022-11-02 21:07:06,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 83 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:07:06,129 INFO L231 Difference]: Finished difference. Result has 87 places, 83 transitions, 173 flow [2022-11-02 21:07:06,130 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2022-11-02 21:07:06,131 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2022-11-02 21:07:06,131 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 173 flow [2022-11-02 21:07:06,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:06,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:06,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:07:06,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:06,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1110247673, now seen corresponding path program 1 times [2022-11-02 21:07:06,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:06,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761140925] [2022-11-02 21:07:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:06,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:06,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761140925] [2022-11-02 21:07:06,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761140925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:06,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:06,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956989034] [2022-11-02 21:07:06,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:06,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:06,787 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-11-02 21:07:06,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:06,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-11-02 21:07:06,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:06,879 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-02 21:07:06,879 INFO L131 PetriNetUnfolder]: For 1/6 co-relation queries the response was YES. [2022-11-02 21:07:06,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 82 events. 2/82 cut-off events. For 1/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 70. Up to 13 conditions per place. [2022-11-02 21:07:06,880 INFO L137 encePairwiseOnDemand]: 105/110 looper letters, 16 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2022-11-02 21:07:06,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 82 transitions, 211 flow [2022-11-02 21:07:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2022-11-02 21:07:06,883 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7772727272727272 [2022-11-02 21:07:06,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2022-11-02 21:07:06,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2022-11-02 21:07:06,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:06,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2022-11-02 21:07:06,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,889 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 173 flow. Second operand 6 states and 513 transitions. [2022-11-02 21:07:06,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 82 transitions, 211 flow [2022-11-02 21:07:06,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 82 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:07:06,892 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 178 flow [2022-11-02 21:07:06,893 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2022-11-02 21:07:06,894 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-11-02 21:07:06,894 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 178 flow [2022-11-02 21:07:06,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:06,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:06,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:07:06,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1991424984, now seen corresponding path program 1 times [2022-11-02 21:07:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:06,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422036051] [2022-11-02 21:07:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422036051] [2022-11-02 21:07:07,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422036051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:07,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:07,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:07:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973815348] [2022-11-02 21:07:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:07:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:07:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:07:07,043 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 110 [2022-11-02 21:07:07,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:07,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 110 [2022-11-02 21:07:07,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:07,125 INFO L130 PetriNetUnfolder]: 1/81 cut-off events. [2022-11-02 21:07:07,130 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:07:07,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 81 events. 1/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 82. Up to 9 conditions per place. [2022-11-02 21:07:07,131 INFO L137 encePairwiseOnDemand]: 106/110 looper letters, 10 selfloop transitions, 3 changer transitions 0/81 dead transitions. [2022-11-02 21:07:07,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 81 transitions, 202 flow [2022-11-02 21:07:07,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:07:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 21:07:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2022-11-02 21:07:07,134 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8618181818181818 [2022-11-02 21:07:07,134 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2022-11-02 21:07:07,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2022-11-02 21:07:07,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:07,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2022-11-02 21:07:07,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,140 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,140 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 178 flow. Second operand 5 states and 474 transitions. [2022-11-02 21:07:07,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 81 transitions, 202 flow [2022-11-02 21:07:07,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 81 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:07:07,147 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 175 flow [2022-11-02 21:07:07,147 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2022-11-02 21:07:07,152 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-11-02 21:07:07,153 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 175 flow [2022-11-02 21:07:07,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:07,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:07,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:07:07,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-02 21:07:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1273226745, now seen corresponding path program 1 times [2022-11-02 21:07:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787511294] [2022-11-02 21:07:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:07,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:07,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:07,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787511294] [2022-11-02 21:07:07,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787511294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:07,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:07,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:07:07,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599884552] [2022-11-02 21:07:07,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:07,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:07:07,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:07,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:07:07,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:07:07,404 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-11-02 21:07:07,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:07,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-11-02 21:07:07,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:07,460 INFO L130 PetriNetUnfolder]: 16/117 cut-off events. [2022-11-02 21:07:07,460 INFO L131 PetriNetUnfolder]: For 7/16 co-relation queries the response was YES. [2022-11-02 21:07:07,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 117 events. 16/117 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 15 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 111. Up to 50 conditions per place. [2022-11-02 21:07:07,461 INFO L137 encePairwiseOnDemand]: 108/110 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-11-02 21:07:07,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 80 transitions, 213 flow [2022-11-02 21:07:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:07:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:07:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-02 21:07:07,464 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2022-11-02 21:07:07,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-02 21:07:07,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-02 21:07:07,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:07,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-02 21:07:07,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,467 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 175 flow. Second operand 3 states and 267 transitions. [2022-11-02 21:07:07,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 80 transitions, 213 flow [2022-11-02 21:07:07,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 21:07:07,470 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2022-11-02 21:07:07,470 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2022-11-02 21:07:07,471 INFO L287 CegarLoopForPetriNet]: 93 programPoint places, -5 predicate places. [2022-11-02 21:07:07,471 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2022-11-02 21:07:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:07,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-02 21:07:07,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-02 21:07:07,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-02 21:07:07,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-02 21:07:07,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-02 21:07:07,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-02 21:07:07,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-02 21:07:07,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-11-02 21:07:07,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-11-02 21:07:07,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-02 21:07:07,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-02 21:07:07,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-11-02 21:07:07,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:07:07,479 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 21:07:07,486 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:07:07,486 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:07:07,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:07:07 BasicIcfg [2022-11-02 21:07:07,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:07:07,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:07:07,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:07:07,494 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:07:07,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:03" (3/4) ... [2022-11-02 21:07:07,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:07:07,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 21:07:07,505 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 21:07:07,510 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-02 21:07:07,510 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 21:07:07,510 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:07:07,511 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:07:07,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:07:07,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:07:07,551 INFO L158 Benchmark]: Toolchain (without parser) took 5416.22ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 78.6MB in the beginning and 93.8MB in the end (delta: -15.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,552 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:07:07,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 984.26ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 64.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.62ms. Allocated memory is still 111.1MB. Free memory was 64.3MB in the beginning and 61.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,553 INFO L158 Benchmark]: Boogie Preprocessor took 60.73ms. Allocated memory is still 111.1MB. Free memory was 61.5MB in the beginning and 59.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:07:07,554 INFO L158 Benchmark]: RCFGBuilder took 652.89ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.4MB in the beginning and 108.3MB in the end (delta: -48.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,554 INFO L158 Benchmark]: TraceAbstraction took 3563.55ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 107.5MB in the beginning and 95.9MB in the end (delta: 11.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,555 INFO L158 Benchmark]: Witness Printer took 56.78ms. Allocated memory is still 161.5MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:07:07,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 984.26ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 64.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.62ms. Allocated memory is still 111.1MB. Free memory was 64.3MB in the beginning and 61.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.73ms. Allocated memory is still 111.1MB. Free memory was 61.5MB in the beginning and 59.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 652.89ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.4MB in the beginning and 108.3MB in the end (delta: -48.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3563.55ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 107.5MB in the beginning and 95.9MB in the end (delta: 11.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 56.78ms. Allocated memory is still 161.5MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: 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 5 procedures, 145 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 51 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:07:07,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36874265-06aa-4316-b83c-341f6dcc2397/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE