./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba --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 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b --- 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-b5237d8 [2022-11-22 00:15:54,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:15:54,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:15:54,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:15:54,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:15:54,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:15:54,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:15:54,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:15:54,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:15:54,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:15:54,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:15:54,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:15:54,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:15:54,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:15:54,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:15:54,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:15:54,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:15:54,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:15:54,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:15:54,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:15:54,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:15:54,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:15:54,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:15:54,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:15:54,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:15:54,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:15:54,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:15:54,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:15:54,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:15:54,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:15:54,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:15:54,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:15:54,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:15:54,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:15:54,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:15:54,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:15:54,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:15:54,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:15:54,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:15:54,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:15:54,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:15:54,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:15:54,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:15:54,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:15:54,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:15:54,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:15:54,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:15:54,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:15:54,161 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:15:54,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:15:54,161 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:15:54,161 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:15:54,162 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:15:54,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:15:54,162 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:15:54,162 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:15:54,162 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:15:54,163 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:15:54,163 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:15:54,163 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:15:54,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:15:54,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:15:54,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:15:54,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:15:54,165 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:15:54,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:15:54,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:15:54,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:15:54,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:15:54,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:15:54,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:15:54,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:15:54,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:15:54,167 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:15:54,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:15:54,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:15:54,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:15:54,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:15:54,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:15:54,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:15:54,169 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_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b [2022-11-22 00:15:54,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:15:54,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:15:54,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:15:54,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:15:54,435 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:15:54,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-22 00:15:57,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:15:57,864 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:15:57,865 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-22 00:15:57,877 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/data/5b6852977/893348dcc5514a5ea588868fd7aec7fe/FLAGb610d3731 [2022-11-22 00:15:57,893 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/data/5b6852977/893348dcc5514a5ea588868fd7aec7fe [2022-11-22 00:15:57,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:15:57,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:15:57,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:15:57,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:15:57,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:15:57,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:15:57" (1/1) ... [2022-11-22 00:15:57,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee17000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:57, skipping insertion in model container [2022-11-22 00:15:57,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:15:57" (1/1) ... [2022-11-22 00:15:57,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:15:57,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:15:58,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:15:58,450 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:15:58,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:15:58,554 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:15:58,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58 WrapperNode [2022-11-22 00:15:58,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:15:58,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:15:58,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:15:58,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:15:58,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,608 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-11-22 00:15:58,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:15:58,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:15:58,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:15:58,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:15:58,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:15:58,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:15:58,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:15:58,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:15:58,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (1/1) ... [2022-11-22 00:15:58,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:15:58,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:58,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:15:58,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:15:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:15:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:15:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 00:15:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:15:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:15:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 00:15:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 00:15:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:15:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:15:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:15:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:15:58,732 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:15:58,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:15:58,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:15:59,213 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:15:59,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:15:59,230 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:15:59,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:59 BoogieIcfgContainer [2022-11-22 00:15:59,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:15:59,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:15:59,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:15:59,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:15:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:15:57" (1/3) ... [2022-11-22 00:15:59,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513214a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:59, skipping insertion in model container [2022-11-22 00:15:59,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:58" (2/3) ... [2022-11-22 00:15:59,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513214a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:59, skipping insertion in model container [2022-11-22 00:15:59,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:59" (3/3) ... [2022-11-22 00:15:59,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_37-indirect_rc.i [2022-11-22 00:15:59,258 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:15:59,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:15:59,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 00:15:59,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:15:59,385 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 00:15:59,420 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:15:59,434 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 109 transitions, 226 flow [2022-11-22 00:15:59,437 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 109 transitions, 226 flow [2022-11-22 00:15:59,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 226 flow [2022-11-22 00:15:59,488 INFO L130 PetriNetUnfolder]: 0/108 cut-off events. [2022-11-22 00:15:59,488 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 00:15:59,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 0/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-22 00:15:59,493 INFO L119 LiptonReduction]: Number of co-enabled transitions 1736 [2022-11-22 00:16:03,048 INFO L134 LiptonReduction]: Checked pairs total: 12182 [2022-11-22 00:16:03,049 INFO L136 LiptonReduction]: Total number of compositions: 82 [2022-11-22 00:16:03,059 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 98 flow [2022-11-22 00:16:03,113 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:03,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:16:03,160 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;@4e8203a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:16:03,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-22 00:16:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 00:16:03,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:03,172 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 00:16:03,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:03,182 INFO L85 PathProgramCache]: Analyzing trace with hash 357, now seen corresponding path program 1 times [2022-11-22 00:16:03,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:03,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063267470] [2022-11-22 00:16:03,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:03,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:03,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063267470] [2022-11-22 00:16:03,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063267470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:03,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:03,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 00:16:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985036294] [2022-11-22 00:16:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:03,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:16:03,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:16:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:16:03,384 INFO L87 Difference]: Start difference. First operand has 372 states, 350 states have (on average 2.0) internal successors, (700), 371 states have internal predecessors, (700), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:03,461 INFO L93 Difference]: Finished difference Result 331 states and 623 transitions. [2022-11-22 00:16:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:16:03,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-22 00:16:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:03,486 INFO L225 Difference]: With dead ends: 331 [2022-11-22 00:16:03,486 INFO L226 Difference]: Without dead ends: 331 [2022-11-22 00:16:03,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:16:03,492 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:03,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:16:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-22 00:16:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-11-22 00:16:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 320 states have (on average 1.946875) internal successors, (623), 330 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 623 transitions. [2022-11-22 00:16:03,583 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 623 transitions. Word has length 1 [2022-11-22 00:16:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:03,584 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 623 transitions. [2022-11-22 00:16:03,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 623 transitions. [2022-11-22 00:16:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:16:03,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:03,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:03,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:16:03,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:03,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1576112598, now seen corresponding path program 1 times [2022-11-22 00:16:03,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:03,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162274438] [2022-11-22 00:16:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:04,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:04,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162274438] [2022-11-22 00:16:04,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162274438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:04,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:04,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:16:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147612021] [2022-11-22 00:16:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:04,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:16:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:16:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:04,163 INFO L87 Difference]: Start difference. First operand 331 states and 623 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-11-22 00:16:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:04,448 INFO L93 Difference]: Finished difference Result 358 states and 671 transitions. [2022-11-22 00:16:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:16:04,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2022-11-22 00:16:04,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:04,451 INFO L225 Difference]: With dead ends: 358 [2022-11-22 00:16:04,451 INFO L226 Difference]: Without dead ends: 358 [2022-11-22 00:16:04,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:04,452 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:04,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:16:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-22 00:16:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 346. [2022-11-22 00:16:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 336 states have (on average 1.931547619047619) internal successors, (649), 345 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 649 transitions. [2022-11-22 00:16:04,468 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 649 transitions. Word has length 8 [2022-11-22 00:16:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:04,468 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 649 transitions. [2022-11-22 00:16:04,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-11-22 00:16:04,468 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 649 transitions. [2022-11-22 00:16:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:16:04,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:04,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:04,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:16:04,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1392586058, now seen corresponding path program 1 times [2022-11-22 00:16:04,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:04,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720288501] [2022-11-22 00:16:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:04,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:04,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:04,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720288501] [2022-11-22 00:16:04,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720288501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:04,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:04,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:16:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998189167] [2022-11-22 00:16:04,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:04,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:16:04,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:16:04,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:04,679 INFO L87 Difference]: Start difference. First operand 346 states and 649 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-11-22 00:16:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:05,015 INFO L93 Difference]: Finished difference Result 416 states and 783 transitions. [2022-11-22 00:16:05,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:16:05,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2022-11-22 00:16:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:05,018 INFO L225 Difference]: With dead ends: 416 [2022-11-22 00:16:05,018 INFO L226 Difference]: Without dead ends: 416 [2022-11-22 00:16:05,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:05,019 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:05,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 32 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:16:05,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-22 00:16:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 390. [2022-11-22 00:16:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 380 states have (on average 1.9289473684210525) internal successors, (733), 389 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 733 transitions. [2022-11-22 00:16:05,034 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 733 transitions. Word has length 8 [2022-11-22 00:16:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:05,035 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 733 transitions. [2022-11-22 00:16:05,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-11-22 00:16:05,035 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 733 transitions. [2022-11-22 00:16:05,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:16:05,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:05,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:05,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:16:05,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:05,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:05,038 INFO L85 PathProgramCache]: Analyzing trace with hash -829833519, now seen corresponding path program 1 times [2022-11-22 00:16:05,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:05,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010685028] [2022-11-22 00:16:05,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:05,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:05,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010685028] [2022-11-22 00:16:05,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010685028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:05,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:05,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:16:05,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755250152] [2022-11-22 00:16:05,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:05,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:16:05,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:05,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:16:05,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:05,323 INFO L87 Difference]: Start difference. First operand 390 states and 733 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:05,625 INFO L93 Difference]: Finished difference Result 455 states and 858 transitions. [2022-11-22 00:16:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:16:05,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-22 00:16:05,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:05,629 INFO L225 Difference]: With dead ends: 455 [2022-11-22 00:16:05,629 INFO L226 Difference]: Without dead ends: 455 [2022-11-22 00:16:05,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:05,631 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:05,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:16:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-22 00:16:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 439. [2022-11-22 00:16:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 429 states have (on average 1.9277389277389276) internal successors, (827), 438 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 827 transitions. [2022-11-22 00:16:05,658 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 827 transitions. Word has length 14 [2022-11-22 00:16:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:05,658 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 827 transitions. [2022-11-22 00:16:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:05,659 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 827 transitions. [2022-11-22 00:16:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:16:05,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:05,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:05,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:16:05,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash -394821720, now seen corresponding path program 1 times [2022-11-22 00:16:05,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:05,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602924668] [2022-11-22 00:16:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:05,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:05,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:05,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602924668] [2022-11-22 00:16:05,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602924668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:05,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:05,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:16:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865752352] [2022-11-22 00:16:05,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:05,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:16:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:05,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:16:05,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:05,842 INFO L87 Difference]: Start difference. First operand 439 states and 827 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:06,068 INFO L93 Difference]: Finished difference Result 515 states and 974 transitions. [2022-11-22 00:16:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:16:06,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-22 00:16:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:06,071 INFO L225 Difference]: With dead ends: 515 [2022-11-22 00:16:06,072 INFO L226 Difference]: Without dead ends: 503 [2022-11-22 00:16:06,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:06,073 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:06,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 31 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:16:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-11-22 00:16:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2022-11-22 00:16:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 493 states have (on average 1.9269776876267748) internal successors, (950), 502 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 950 transitions. [2022-11-22 00:16:06,093 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 950 transitions. Word has length 14 [2022-11-22 00:16:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:06,094 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 950 transitions. [2022-11-22 00:16:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 950 transitions. [2022-11-22 00:16:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:16:06,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:06,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:06,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:16:06,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-22 00:16:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash -40929777, now seen corresponding path program 1 times [2022-11-22 00:16:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:06,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928653000] [2022-11-22 00:16:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:16:06,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:16:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:16:06,175 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:16:06,176 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:16:06,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-22 00:16:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-22 00:16:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-22 00:16:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-22 00:16:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-22 00:16:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-22 00:16:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-22 00:16:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-22 00:16:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2022-11-22 00:16:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-22 00:16:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-22 00:16:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-22 00:16:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-22 00:16:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-22 00:16:06,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:16:06,184 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 00:16:06,190 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:16:06,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:16:06,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:16:06 BasicIcfg [2022-11-22 00:16:06,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:16:06,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:16:06,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:16:06,221 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:16:06,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:59" (3/4) ... [2022-11-22 00:16:06,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:16:06,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:16:06,225 INFO L158 Benchmark]: Toolchain (without parser) took 8323.25ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 119.9MB in the beginning and 86.3MB in the end (delta: 33.7MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,225 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 648.35ms. Allocated memory is still 153.1MB. Free memory was 119.6MB in the beginning and 100.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.29ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 98.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,226 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,227 INFO L158 Benchmark]: RCFGBuilder took 591.89ms. Allocated memory is still 153.1MB. Free memory was 96.6MB in the beginning and 81.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,227 INFO L158 Benchmark]: TraceAbstraction took 6983.65ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 80.1MB in the beginning and 87.3MB in the end (delta: -7.2MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-11-22 00:16:06,227 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 201.3MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:16:06,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 648.35ms. Allocated memory is still 153.1MB. Free memory was 119.6MB in the beginning and 100.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.29ms. Allocated memory is still 153.1MB. Free memory was 100.6MB in the beginning and 98.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.89ms. Allocated memory is still 153.1MB. Free memory was 96.6MB in the beginning and 81.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6983.65ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 80.1MB in the beginning and 87.3MB in the end (delta: -7.2MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 201.3MB. Free memory was 87.3MB in the beginning and 86.3MB 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: 3.6s, 113 PlacesBefore, 49 PlacesAfterwards, 109 TransitionsBefore, 45 TransitionsAfterwards, 1736 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 82 TotalNumberOfCompositions, 12182 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3290, independent: 2703, independent conditional: 0, independent unconditional: 2703, dependent: 587, dependent conditional: 0, dependent unconditional: 587, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1044, independent: 958, independent conditional: 0, independent unconditional: 958, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1044, independent: 866, independent conditional: 0, independent unconditional: 866, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 178, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 495, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3290, independent: 1745, independent conditional: 0, independent unconditional: 1745, dependent: 501, dependent conditional: 0, dependent unconditional: 501, unknown: 1044, unknown conditional: 0, unknown unconditional: 1044] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 217, Positive conditional cache size: 0, Positive unconditional cache size: 217, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59, 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: 685]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int g; [L680] 0 int *g1; [L681] 0 int *g2; [L682] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_t id; [L691] 0 int x; [L692] EXPR 0 g2 = &g [L692] 0 g1 = g2 = &g [L693] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L694] EXPR 0 *g2 [L694] EXPR 0 \read(*g2) VAL [\read(*g2)=0, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g2)=0, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] EXPR 1 *g1 [L685] EXPR 1 \read(*g1) VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [(*g2)++=25, (*g2)++=0, \read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: (*g2)++ [694] * C: g2 = &g [692] * C: g1 = g2 = &g [692] and C: (*g1)++ [685] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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: 685]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 685]: 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, 140 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 980 IncrementalHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 130 mSDtfsCounter, 980 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 54 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 00:16:06,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac761d9-854e-4f82-81ce-1ece9766ab93/bin/utaipan-g80aRyZoba/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