./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/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_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 --- 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 09:05:14,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:05:14,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:05:14,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:05:14,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:05:14,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:05:14,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:05:14,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:05:14,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:05:14,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:05:14,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:05:14,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:05:14,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:05:14,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:05:14,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:05:14,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:05:14,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:05:14,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:05:14,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:05:14,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:05:14,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:05:14,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:05:14,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:05:14,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:05:14,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:05:14,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:05:14,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:05:14,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:05:14,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:05:14,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:05:14,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:05:14,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:05:14,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:05:14,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:05:14,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:05:14,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:05:14,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:05:14,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:05:14,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:05:14,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:05:14,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:05:14,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:05:14,980 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:05:14,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:05:14,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:05:14,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:05:14,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:05:14,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:05:14,981 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:05:14,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:05:14,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:05:14,983 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:05:14,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:05:14,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:05:14,983 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:05:14,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:05:14,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:05:14,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:05:14,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:05:14,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:05:14,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:05:14,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:05:14,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:05:14,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:05:14,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:05:14,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:05:14,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:05:14,987 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:05:14,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:05:14,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:05:14,987 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:05:14,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:05:14,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:05:14,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:05:14,988 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_b36707a3-b9f7-48d8-b062-7833f5411d27/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 [2022-12-14 09:05:15,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:05:15,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:05:15,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:05:15,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:05:15,191 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:05:15,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-12-14 09:05:17,724 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:05:17,962 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:05:17,963 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2022-12-14 09:05:17,975 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/data/0b46c2ed9/138e6add2643441fabfa9c7b7b394e78/FLAG1b5c86a51 [2022-12-14 09:05:18,295 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/data/0b46c2ed9/138e6add2643441fabfa9c7b7b394e78 [2022-12-14 09:05:18,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:05:18,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:05:18,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:05:18,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:05:18,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:05:18,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78081a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18, skipping insertion in model container [2022-12-14 09:05:18,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:05:18,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:05:18,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:05:18,629 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:05:18,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:05:18,687 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:05:18,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18 WrapperNode [2022-12-14 09:05:18,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:05:18,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:05:18,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:05:18,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:05:18,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,718 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-12-14 09:05:18,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:05:18,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:05:18,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:05:18,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:05:18,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:05:18,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:05:18,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:05:18,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:05:18,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (1/1) ... [2022-12-14 09:05:18,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:05:18,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:05:18,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:05:18,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:05:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:05:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:05:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 09:05:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 09:05:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:05:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:05:18,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:05:18,795 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 09:05:18,910 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:05:18,911 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:05:19,032 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:05:19,039 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:05:19,039 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:05:19,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:05:19 BoogieIcfgContainer [2022-12-14 09:05:19,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:05:19,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:05:19,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:05:19,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:05:19,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:05:18" (1/3) ... [2022-12-14 09:05:19,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70972aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:05:19, skipping insertion in model container [2022-12-14 09:05:19,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:05:18" (2/3) ... [2022-12-14 09:05:19,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70972aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:05:19, skipping insertion in model container [2022-12-14 09:05:19,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:05:19" (3/3) ... [2022-12-14 09:05:19,049 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_41-pt_rwlock.i [2022-12-14 09:05:19,055 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:05:19,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:05:19,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 09:05:19,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:05:19,100 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 09:05:19,123 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:05:19,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 67 transitions, 142 flow [2022-12-14 09:05:19,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 67 transitions, 142 flow [2022-12-14 09:05:19,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 142 flow [2022-12-14 09:05:19,169 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-12-14 09:05:19,170 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 09:05:19,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 0/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-14 09:05:19,173 INFO L119 LiptonReduction]: Number of co-enabled transitions 450 [2022-12-14 09:05:20,776 INFO L134 LiptonReduction]: Checked pairs total: 439 [2022-12-14 09:05:20,777 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-12-14 09:05:20,782 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 11 transitions, 30 flow [2022-12-14 09:05:20,789 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 16 states have internal predecessors, (24), 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 09:05:20,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:05:20,807 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;@586de235, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:05:20,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 09:05:20,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 16 states have internal predecessors, (24), 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 09:05:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:05:20,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:20,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:05:20,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 09:05:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:20,820 INFO L85 PathProgramCache]: Analyzing trace with hash 243186, now seen corresponding path program 1 times [2022-12-14 09:05:20,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:20,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173814519] [2022-12-14 09:05:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:20,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:21,006 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 09:05:21,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:21,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173814519] [2022-12-14 09:05:21,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173814519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:21,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:21,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:05:21,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202787312] [2022-12-14 09:05:21,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:21,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:21,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:21,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:21,033 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 16 states have internal predecessors, (24), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:21,050 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2022-12-14 09:05:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 09:05:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:21,059 INFO L225 Difference]: With dead ends: 5 [2022-12-14 09:05:21,059 INFO L226 Difference]: Without dead ends: 5 [2022-12-14 09:05:21,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:05:21,063 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:21,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:05:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2022-12-14 09:05:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2022-12-14 09:05:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 09:05:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2022-12-14 09:05:21,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2022-12-14 09:05:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:21,091 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2022-12-14 09:05:21,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2022-12-14 09:05:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:05:21,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:21,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:05:21,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:05:21,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 09:05:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:21,093 INFO L85 PathProgramCache]: Analyzing trace with hash 243180, now seen corresponding path program 1 times [2022-12-14 09:05:21,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:21,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533746370] [2022-12-14 09:05:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:21,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:21,166 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 09:05:21,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:21,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533746370] [2022-12-14 09:05:21,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533746370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:21,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:21,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:05:21,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557710098] [2022-12-14 09:05:21,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:21,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:21,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:21,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:21,169 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:21,175 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2022-12-14 09:05:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 09:05:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:21,176 INFO L225 Difference]: With dead ends: 3 [2022-12-14 09:05:21,176 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:05:21,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:05:21,177 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:21,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:05:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:05:21,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:05:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 09:05:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:05:21,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-12-14 09:05:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:21,179 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:05:21,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:05:21,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:05:21,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-12-14 09:05:21,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-12-14 09:05:21,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-14 09:05:21,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-12-14 09:05:21,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-12-14 09:05:21,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-12-14 09:05:21,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-12-14 09:05:21,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:05:21,186 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:05:21,191 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 09:05:21,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:05:21,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:05:21 BasicIcfg [2022-12-14 09:05:21,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:05:21,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:05:21,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:05:21,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:05:21,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:05:19" (3/4) ... [2022-12-14 09:05:21,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:05:21,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-14 09:05:21,208 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 09:05:21,208 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 09:05:21,208 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 09:05:21,238 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:05:21,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:05:21,239 INFO L158 Benchmark]: Toolchain (without parser) took 2941.05ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 88.3MB in the beginning and 56.9MB in the end (delta: 31.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,239 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:05:21,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.94ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 61.1MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.32ms. Allocated memory is still 125.8MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,240 INFO L158 Benchmark]: Boogie Preprocessor took 16.86ms. Allocated memory is still 125.8MB. Free memory was 59.0MB in the beginning and 57.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,240 INFO L158 Benchmark]: RCFGBuilder took 304.69ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 119.1MB in the end (delta: -61.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,241 INFO L158 Benchmark]: TraceAbstraction took 2150.49ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 59.0MB in the end (delta: 59.6MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,241 INFO L158 Benchmark]: Witness Printer took 43.35ms. Allocated memory is still 151.0MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:05:21,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.94ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 61.1MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.32ms. Allocated memory is still 125.8MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.86ms. Allocated memory is still 125.8MB. Free memory was 59.0MB in the beginning and 57.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.69ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 119.1MB in the end (delta: -61.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2150.49ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 59.0MB in the end (delta: 59.6MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. * Witness Printer took 43.35ms. Allocated memory is still 151.0MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 71 PlacesBefore, 15 PlacesAfterwards, 67 TransitionsBefore, 11 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 439 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 416, independent: 411, independent conditional: 0, independent unconditional: 411, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 289, independent: 284, independent conditional: 0, independent unconditional: 284, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 289, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 416, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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 - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 09:05:21,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b36707a3-b9f7-48d8-b062-7833f5411d27/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 Result: TRUE