./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh --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 c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f --- 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-2329fc7 [2022-12-14 08:12:44,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:12:44,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:12:44,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:12:44,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:12:44,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:12:44,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:12:44,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:12:44,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:12:44,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:12:44,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:12:44,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:12:44,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:12:44,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:12:44,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:12:44,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:12:44,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:12:44,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:12:44,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:12:44,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:12:44,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:12:44,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:12:44,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:12:44,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:12:44,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:12:44,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:12:44,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:12:44,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:12:44,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:12:44,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:12:44,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:12:44,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:12:44,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:12:44,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:12:44,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:12:44,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:12:44,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:12:44,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:12:44,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:12:44,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:12:44,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:12:44,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:12:44,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:12:44,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:12:44,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:12:44,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:12:44,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:12:44,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:12:44,191 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:12:44,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:12:44,191 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:12:44,191 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:12:44,192 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:12:44,192 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:12:44,192 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:12:44,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:12:44,192 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:12:44,192 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:12:44,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:12:44,193 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:12:44,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:12:44,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:12:44,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:12:44,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:12:44,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:12:44,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:12:44,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:12:44,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:12:44,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:12:44,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:12:44,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:12:44,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:12:44,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:12:44,197 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:12:44,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:12:44,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:12:44,197 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:12:44,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:12:44,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:12:44,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:12:44,198 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_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f [2022-12-14 08:12:44,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:12:44,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:12:44,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:12:44,401 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:12:44,402 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:12:44,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-12-14 08:12:47,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:12:47,194 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:12:47,195 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-12-14 08:12:47,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/data/c8912ba5c/d303e6c8f68841d4a2cff15934d95a65/FLAG1f5434377 [2022-12-14 08:12:47,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/data/c8912ba5c/d303e6c8f68841d4a2cff15934d95a65 [2022-12-14 08:12:47,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:12:47,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:12:47,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:12:47,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:12:47,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:12:47,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209c104c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47, skipping insertion in model container [2022-12-14 08:12:47,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:12:47,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:12:47,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:12:47,546 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:12:47,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:12:47,606 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:12:47,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47 WrapperNode [2022-12-14 08:12:47,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:12:47,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:12:47,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:12:47,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:12:47,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,645 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-12-14 08:12:47,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:12:47,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:12:47,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:12:47,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:12:47,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:12:47,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:12:47,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:12:47,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:12:47,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (1/1) ... [2022-12-14 08:12:47,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:12:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:12:47,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:12:47,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:12:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:12:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:12:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 08:12:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 08:12:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:12:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:12:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:12:47,727 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:12:47,846 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:12:47,848 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:12:47,935 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:12:47,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:12:47,940 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:12:47,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:12:47 BoogieIcfgContainer [2022-12-14 08:12:47,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:12:47,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:12:47,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:12:47,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:12:47,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:12:47" (1/3) ... [2022-12-14 08:12:47,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338bdc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:12:47, skipping insertion in model container [2022-12-14 08:12:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:12:47" (2/3) ... [2022-12-14 08:12:47,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338bdc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:12:47, skipping insertion in model container [2022-12-14 08:12:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:12:47" (3/3) ... [2022-12-14 08:12:47,948 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2022-12-14 08:12:47,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:12:47,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:12:47,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:12:47,963 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:12:48,002 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:12:48,026 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:12:48,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 61 transitions, 132 flow [2022-12-14 08:12:48,040 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 61 transitions, 132 flow [2022-12-14 08:12:48,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 132 flow [2022-12-14 08:12:48,068 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-14 08:12:48,068 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:12:48,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-14 08:12:48,072 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2022-12-14 08:12:48,911 INFO L134 LiptonReduction]: Checked pairs total: 2955 [2022-12-14 08:12:48,911 INFO L136 LiptonReduction]: Total number of compositions: 38 [2022-12-14 08:12:48,918 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 56 flow [2022-12-14 08:12:48,943 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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) [2022-12-14 08:12:48,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:12:48,966 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@607bee91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:12:48,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 08:12:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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) [2022-12-14 08:12:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:12:48,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:12:48,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:12:48,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 08:12:48,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:12:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash 5842616, now seen corresponding path program 1 times [2022-12-14 08:12:48,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:12:48,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358004549] [2022-12-14 08:12:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:48,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:12:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:12:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:12:49,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:12:49,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358004549] [2022-12-14 08:12:49,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358004549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:12:49,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:12:49,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:12:49,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812800745] [2022-12-14 08:12:49,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:12:49,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:12:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:12:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:12:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:12:49,191 INFO L87 Difference]: Start difference. First operand has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 08:12:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:12:49,244 INFO L93 Difference]: Finished difference Result 204 states and 445 transitions. [2022-12-14 08:12:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:12:49,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 08:12:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:12:49,254 INFO L225 Difference]: With dead ends: 204 [2022-12-14 08:12:49,254 INFO L226 Difference]: Without dead ends: 204 [2022-12-14 08:12:49,255 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:12:49,257 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:12:49,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:12:49,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-14 08:12:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 168. [2022-12-14 08:12:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 2.279503105590062) internal successors, (367), 167 states have internal predecessors, (367), 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) [2022-12-14 08:12:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 367 transitions. [2022-12-14 08:12:49,294 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 367 transitions. Word has length 4 [2022-12-14 08:12:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:12:49,294 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 367 transitions. [2022-12-14 08:12:49,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 08:12:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 367 transitions. [2022-12-14 08:12:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:12:49,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:12:49,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:12:49,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:12:49,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 08:12:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:12:49,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1303983926, now seen corresponding path program 1 times [2022-12-14 08:12:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:12:49,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941196126] [2022-12-14 08:12:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:12:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:12:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:12:49,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:12:49,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941196126] [2022-12-14 08:12:49,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941196126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:12:49,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:12:49,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:12:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403887892] [2022-12-14 08:12:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:12:49,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:12:49,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:12:49,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:12:49,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:12:49,340 INFO L87 Difference]: Start difference. First operand 168 states and 367 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 08:12:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:12:49,365 INFO L93 Difference]: Finished difference Result 172 states and 374 transitions. [2022-12-14 08:12:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:12:49,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 08:12:49,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:12:49,368 INFO L225 Difference]: With dead ends: 172 [2022-12-14 08:12:49,368 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 08:12:49,368 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:12:49,370 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:12:49,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:12:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 08:12:49,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-12-14 08:12:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 2.2337662337662336) internal successors, (344), 159 states have internal predecessors, (344), 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) [2022-12-14 08:12:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 344 transitions. [2022-12-14 08:12:49,386 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 344 transitions. Word has length 8 [2022-12-14 08:12:49,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:12:49,387 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 344 transitions. [2022-12-14 08:12:49,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 08:12:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 344 transitions. [2022-12-14 08:12:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:12:49,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:12:49,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:12:49,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:12:49,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 08:12:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:12:49,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2077432788, now seen corresponding path program 1 times [2022-12-14 08:12:49,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:12:49,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030933002] [2022-12-14 08:12:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:49,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:12:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:12:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:12:49,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:12:49,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030933002] [2022-12-14 08:12:49,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030933002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:12:49,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:12:49,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:12:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762031450] [2022-12-14 08:12:49,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:12:49,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:12:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:12:49,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:12:49,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:12:49,433 INFO L87 Difference]: Start difference. First operand 160 states and 344 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-14 08:12:49,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:12:49,454 INFO L93 Difference]: Finished difference Result 158 states and 329 transitions. [2022-12-14 08:12:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:12:49,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-12-14 08:12:49,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:12:49,455 INFO L225 Difference]: With dead ends: 158 [2022-12-14 08:12:49,455 INFO L226 Difference]: Without dead ends: 144 [2022-12-14 08:12:49,456 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:12:49,457 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:12:49,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:12:49,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-14 08:12:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-12-14 08:12:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 2.0642857142857145) internal successors, (289), 143 states have internal predecessors, (289), 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) [2022-12-14 08:12:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 289 transitions. [2022-12-14 08:12:49,465 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 289 transitions. Word has length 10 [2022-12-14 08:12:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:12:49,465 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 289 transitions. [2022-12-14 08:12:49,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-14 08:12:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 289 transitions. [2022-12-14 08:12:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:12:49,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:12:49,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:12:49,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:12:49,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 08:12:49,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:12:49,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1362509399, now seen corresponding path program 1 times [2022-12-14 08:12:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:12:49,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643352581] [2022-12-14 08:12:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:12:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:12:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:12:49,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:12:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:12:49,510 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:12:49,510 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:12:49,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-12-14 08:12:49,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-14 08:12:49,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-12-14 08:12:49,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-12-14 08:12:49,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-12-14 08:12:49,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-12-14 08:12:49,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-12-14 08:12:49,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-12-14 08:12:49,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:12:49,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 08:12:49,522 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:12:49,522 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:12:49,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:12:49 BasicIcfg [2022-12-14 08:12:49,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:12:49,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:12:49,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:12:49,543 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:12:49,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:12:47" (3/4) ... [2022-12-14 08:12:49,546 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:12:49,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:12:49,547 INFO L158 Benchmark]: Toolchain (without parser) took 2323.64ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 86.2MB in the beginning and 86.9MB in the end (delta: -662.6kB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,547 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:12:49,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.10ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 68.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.39ms. Allocated memory is still 125.8MB. Free memory was 68.1MB in the beginning and 66.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,548 INFO L158 Benchmark]: Boogie Preprocessor took 20.03ms. Allocated memory is still 125.8MB. Free memory was 66.3MB in the beginning and 64.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,548 INFO L158 Benchmark]: RCFGBuilder took 275.36ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.9MB in the beginning and 138.2MB in the end (delta: -73.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,549 INFO L158 Benchmark]: TraceAbstraction took 1598.34ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 87.9MB in the end (delta: 50.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-12-14 08:12:49,549 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 172.0MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:12:49,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.10ms. Allocated memory is still 125.8MB. Free memory was 86.2MB in the beginning and 68.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.39ms. Allocated memory is still 125.8MB. Free memory was 68.1MB in the beginning and 66.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.03ms. Allocated memory is still 125.8MB. Free memory was 66.3MB in the beginning and 64.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.36ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.9MB in the beginning and 138.2MB in the end (delta: -73.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1598.34ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 87.9MB in the end (delta: 50.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 172.0MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). 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: 0.9s, 68 PlacesBefore, 30 PlacesAfterwards, 61 TransitionsBefore, 23 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 2955 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1382, independent: 1220, independent conditional: 0, independent unconditional: 1220, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 731, independent: 690, independent conditional: 0, independent unconditional: 690, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 731, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1382, independent: 530, independent conditional: 0, independent unconditional: 530, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 731, unknown conditional: 0, unknown unconditional: 731] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int x; [L685] 0 pthread_t id1, id2; [L686] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={2:0}, id2={3:0}, pthread_create(&id1, ((void *)0), t_fun, ((void *)0))=0, x=0] [L687] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={2:0}, id2={3:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=1, x=0] [L681] 2 x++ VAL [arg={0:0}, arg={0:0}, x=0] [L681] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=5x++=0] Now there is a data race on ~x~0 between C: x++ [681] and C: x++ [681] - UnprovableResult [Line: 686]: 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: 687]: 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: 681]: 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 4 procedures, 79 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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 proved your program to be incorrect! [2022-12-14 08:12:49,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f22dd88-94b7-46d5-81e2-bc291e575745/bin/utaipan-gh47qXpMRh/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