./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:53:21,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:53:21,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:53:21,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:53:21,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:53:21,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:53:21,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:53:21,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:53:21,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:53:21,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:53:21,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:53:21,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:53:21,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:53:21,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:53:21,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:53:21,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:53:21,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:53:21,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:53:21,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:53:21,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:53:21,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:53:21,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:53:21,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:53:21,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:53:21,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:53:21,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:53:21,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:53:21,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:53:21,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:53:21,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:53:21,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:53:21,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:53:21,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:53:21,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:53:21,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:53:21,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:53:21,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:53:21,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:53:21,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:53:21,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:53:21,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:53:21,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-23 02:53:21,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:53:21,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:53:21,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:53:21,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:53:21,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:53:21,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:53:21,673 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:53:21,673 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:53:21,674 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:53:21,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:53:21,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:53:21,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:53:21,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:53:21,675 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:53:21,675 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:53:21,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:53:21,676 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:53:21,676 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:53:21,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:53:21,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:53:21,678 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:53:21,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:53:21,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:53:21,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:53:21,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:53:21,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:53:21,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:53:21,679 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 02:53:21,680 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:53:21,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:53:21,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:53:21,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:53:21,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:53:21,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:53:21,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:21,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:53:21,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:53:21,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:53:21,683 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:53:21,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:53:21,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:53:21,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:53:21,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:53:21,684 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab [2021-11-23 02:53:22,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:53:22,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:53:22,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:53:22,122 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:53:22,123 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:53:22,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2021-11-23 02:53:22,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/data/3d7efdb15/8caba51f3c1c4f44bb1d0f6b02985ddf/FLAG2f485baa0 [2021-11-23 02:53:22,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:53:22,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2021-11-23 02:53:22,853 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/data/3d7efdb15/8caba51f3c1c4f44bb1d0f6b02985ddf/FLAG2f485baa0 [2021-11-23 02:53:23,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/data/3d7efdb15/8caba51f3c1c4f44bb1d0f6b02985ddf [2021-11-23 02:53:23,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:53:23,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:53:23,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:23,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:53:23,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:53:23,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:23" (1/1) ... [2021-11-23 02:53:23,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ee7217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:23, skipping insertion in model container [2021-11-23 02:53:23,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:23" (1/1) ... [2021-11-23 02:53:23,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:53:23,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:53:23,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:23,821 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:53:23,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:24,000 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:53:24,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24 WrapperNode [2021-11-23 02:53:24,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:24,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:24,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:53:24,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:53:24,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,098 INFO L137 Inliner]: procedures = 263, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2021-11-23 02:53:24,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:24,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:53:24,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:53:24,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:53:24,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:53:24,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:53:24,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:53:24,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:53:24,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (1/1) ... [2021-11-23 02:53:24,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:24,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:53:24,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:53:24,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:53:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:53:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:53:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:53:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:53:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 02:53:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:53:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 02:53:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 02:53:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:53:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:53:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:53:24,257 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 02:53:24,468 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:53:24,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:53:24,728 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:53:24,737 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:53:24,737 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:53:24,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:24 BoogieIcfgContainer [2021-11-23 02:53:24,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:53:24,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:53:24,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:53:24,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:53:24,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:53:23" (1/3) ... [2021-11-23 02:53:24,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1e1834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:24, skipping insertion in model container [2021-11-23 02:53:24,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:24" (2/3) ... [2021-11-23 02:53:24,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1e1834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:24, skipping insertion in model container [2021-11-23 02:53:24,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:24" (3/3) ... [2021-11-23 02:53:24,750 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2021-11-23 02:53:24,757 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 02:53:24,757 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:53:24,757 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 02:53:24,758 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 02:53:24,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,788 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,789 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,789 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,790 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 02:53:24,806 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-23 02:53:24,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:53:24,868 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:53:24,869 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-23 02:53:24,885 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-23 02:53:24,913 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 92 transitions, 192 flow [2021-11-23 02:53:24,916 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 92 transitions, 192 flow [2021-11-23 02:53:24,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 192 flow [2021-11-23 02:53:24,967 INFO L129 PetriNetUnfolder]: 0/91 cut-off events. [2021-11-23 02:53:24,967 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 02:53:24,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 0/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-23 02:53:24,972 INFO L116 LiptonReduction]: Number of co-enabled transitions 960 [2021-11-23 02:53:29,028 INFO L131 LiptonReduction]: Checked pairs total: 4893 [2021-11-23 02:53:29,028 INFO L133 LiptonReduction]: Total number of compositions: 79 [2021-11-23 02:53:29,037 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 25 transitions, 58 flow [2021-11-23 02:53:29,053 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 117 states, 105 states have (on average 2.0) internal successors, (210), 116 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:53:29,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 105 states have (on average 2.0) internal successors, (210), 116 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:53:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 02:53:29,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:29,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 02:53:29,062 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-23 02:53:29,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash 299593, now seen corresponding path program 1 times [2021-11-23 02:53:29,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:29,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077302895] [2021-11-23 02:53:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:29,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:29,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:29,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077302895] [2021-11-23 02:53:29,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077302895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:29,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:29,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:53:29,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52270893] [2021-11-23 02:53:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:29,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:53:29,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:53:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:53:29,303 INFO L87 Difference]: Start difference. First operand has 117 states, 105 states have (on average 2.0) internal successors, (210), 116 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-23 02:53:29,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:29,360 INFO L93 Difference]: Finished difference Result 96 states and 170 transitions. [2021-11-23 02:53:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:53:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-11-23 02:53:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:29,377 INFO L225 Difference]: With dead ends: 96 [2021-11-23 02:53:29,378 INFO L226 Difference]: Without dead ends: 92 [2021-11-23 02:53:29,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:53:29,387 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:29,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:53:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-23 02:53:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-23 02:53:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 87 states have (on average 1.8620689655172413) internal successors, (162), 91 states have internal predecessors, (162), 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) [2021-11-23 02:53:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 162 transitions. [2021-11-23 02:53:29,454 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 162 transitions. Word has length 3 [2021-11-23 02:53:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:29,454 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 162 transitions. [2021-11-23 02:53:29,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-23 02:53:29,455 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 162 transitions. [2021-11-23 02:53:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 02:53:29,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:29,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 02:53:29,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:53:29,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-23 02:53:29,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:29,457 INFO L85 PathProgramCache]: Analyzing trace with hash 287908567, now seen corresponding path program 1 times [2021-11-23 02:53:29,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:29,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443728940] [2021-11-23 02:53:29,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:29,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:29,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:29,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443728940] [2021-11-23 02:53:29,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443728940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:29,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:29,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:53:29,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49327213] [2021-11-23 02:53:29,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:29,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:29,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:29,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:29,553 INFO L87 Difference]: Start difference. First operand 92 states and 162 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-23 02:53:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:29,609 INFO L93 Difference]: Finished difference Result 110 states and 186 transitions. [2021-11-23 02:53:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:29,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2021-11-23 02:53:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:29,612 INFO L225 Difference]: With dead ends: 110 [2021-11-23 02:53:29,612 INFO L226 Difference]: Without dead ends: 90 [2021-11-23 02:53:29,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:29,615 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:29,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 6 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:53:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-23 02:53:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2021-11-23 02:53:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 73 states have (on average 1.7808219178082192) internal successors, (130), 77 states have internal predecessors, (130), 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) [2021-11-23 02:53:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 130 transitions. [2021-11-23 02:53:29,628 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 130 transitions. Word has length 5 [2021-11-23 02:53:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:29,629 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 130 transitions. [2021-11-23 02:53:29,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-23 02:53:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 130 transitions. [2021-11-23 02:53:29,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 02:53:29,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:29,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:53:29,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:53:29,631 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-23 02:53:29,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:29,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1768202645, now seen corresponding path program 1 times [2021-11-23 02:53:29,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:29,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010762537] [2021-11-23 02:53:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:29,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:53:29,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:53:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010762537] [2021-11-23 02:53:29,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010762537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:53:29,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:53:29,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:53:29,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005561956] [2021-11-23 02:53:29,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:53:29,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:53:29,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:53:29,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:53:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:29,696 INFO L87 Difference]: Start difference. First operand 78 states and 130 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-23 02:53:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:53:29,743 INFO L93 Difference]: Finished difference Result 78 states and 123 transitions. [2021-11-23 02:53:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:53:29,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2021-11-23 02:53:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:53:29,745 INFO L225 Difference]: With dead ends: 78 [2021-11-23 02:53:29,745 INFO L226 Difference]: Without dead ends: 63 [2021-11-23 02:53:29,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:53:29,748 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:53:29,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:53:29,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-23 02:53:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-23 02:53:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 60 states have (on average 1.6) internal successors, (96), 62 states have internal predecessors, (96), 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) [2021-11-23 02:53:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 96 transitions. [2021-11-23 02:53:29,758 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 96 transitions. Word has length 7 [2021-11-23 02:53:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:53:29,759 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 96 transitions. [2021-11-23 02:53:29,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-23 02:53:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2021-11-23 02:53:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:53:29,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:53:29,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:53:29,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:53:29,761 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-23 02:53:29,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:53:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash -283479034, now seen corresponding path program 1 times [2021-11-23 02:53:29,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:53:29,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656749295] [2021-11-23 02:53:29,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:53:29,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:53:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:53:29,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:53:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:53:29,859 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:53:29,859 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:53:29,860 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-23 02:53:29,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-23 02:53:29,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-23 02:53:29,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-23 02:53:29,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-23 02:53:29,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-23 02:53:29,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-23 02:53:29,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-23 02:53:29,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:53:29,868 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 02:53:29,874 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 02:53:29,874 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:53:29,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:53:29 BasicIcfg [2021-11-23 02:53:29,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:53:29,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:53:29,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:53:29,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:53:29,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:24" (3/4) ... [2021-11-23 02:53:29,912 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 02:53:29,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:53:29,914 INFO L158 Benchmark]: Toolchain (without parser) took 6859.32ms. Allocated memory was 81.8MB in the beginning and 134.2MB in the end (delta: 52.4MB). Free memory was 44.2MB in the beginning and 97.4MB in the end (delta: -53.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:53:29,914 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:53:29,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 945.91ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 44.0MB in the beginning and 68.2MB in the end (delta: -24.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:53:29,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.57ms. Allocated memory is still 109.1MB. Free memory was 68.2MB in the beginning and 65.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:53:29,916 INFO L158 Benchmark]: Boogie Preprocessor took 42.18ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:53:29,917 INFO L158 Benchmark]: RCFGBuilder took 597.37ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 51.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:53:29,918 INFO L158 Benchmark]: TraceAbstraction took 5165.45ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 51.1MB in the beginning and 97.4MB in the end (delta: -46.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:53:29,918 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 134.2MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:53:29,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 945.91ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 44.0MB in the beginning and 68.2MB in the end (delta: -24.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.57ms. Allocated memory is still 109.1MB. Free memory was 68.2MB in the beginning and 65.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.18ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 597.37ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 51.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5165.45ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 51.1MB in the beginning and 97.4MB in the end (delta: -46.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 134.2MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 96 PlacesBefore, 29 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 12 FixpointIterations, 40 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 4893 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2697, positive: 2281, positive conditional: 0, positive unconditional: 2281, negative: 416, negative conditional: 0, negative unconditional: 416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 774, positive: 728, positive conditional: 0, positive unconditional: 728, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 774, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 224, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2697, positive: 1553, positive conditional: 0, positive unconditional: 1553, negative: 370, negative conditional: 0, negative unconditional: 370, unknown: 774, unknown conditional: 0, unknown unconditional: 774] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L931] 0 pthread_t id; [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 02:53:30,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbac68-1682-4ae0-947c-3c494a4d9f1b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE