./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI --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 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:26:41,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:26:41,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:26:41,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:26:41,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:26:41,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:26:41,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:26:41,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:26:41,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:26:41,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:26:41,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:26:41,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:26:41,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:26:41,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:26:41,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:26:41,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:26:41,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:26:41,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:26:41,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:26:41,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:26:41,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:26:41,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:26:41,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:26:41,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:26:41,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:26:41,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:26:41,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:26:41,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:26:41,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:26:41,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:26:41,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:26:41,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:26:41,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:26:41,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:26:41,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:26:41,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:26:41,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:26:41,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:26:41,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:26:41,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:26:41,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:26:41,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:26:41,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:26:41,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:26:41,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:26:41,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:26:41,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:26:41,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:26:41,947 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:26:41,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:26:41,947 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:26:41,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:26:41,949 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:26:41,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:26:41,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:26:41,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:26:41,950 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:26:41,950 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:26:41,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:26:41,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:26:41,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:26:41,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:26:41,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:26:41,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:26:41,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:26:41,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:26:41,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:26:41,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:26:41,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:26:41,954 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:26:41,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:26:41,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:26:41,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:26:41,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:26:41,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:26:41,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:26:41,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:26:41,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:26:41,957 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:26:41,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:26:41,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:26:41,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:26:41,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:26:41,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:26:41,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:26:41,958 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_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2022-11-03 02:26:42,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:26:42,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:26:42,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:26:42,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:26:42,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:26:42,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-divine/condvar.i [2022-11-03 02:26:42,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/data/2cd421ca5/bbec3229a0884cc99e37e1f0ec191819/FLAGe9e3943ed [2022-11-03 02:26:43,108 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:26:43,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/sv-benchmarks/c/pthread-divine/condvar.i [2022-11-03 02:26:43,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/data/2cd421ca5/bbec3229a0884cc99e37e1f0ec191819/FLAGe9e3943ed [2022-11-03 02:26:43,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/data/2cd421ca5/bbec3229a0884cc99e37e1f0ec191819 [2022-11-03 02:26:43,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:26:43,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:26:43,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:26:43,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:26:43,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:26:43,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:26:43" (1/1) ... [2022-11-03 02:26:43,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:43, skipping insertion in model container [2022-11-03 02:26:43,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:26:43" (1/1) ... [2022-11-03 02:26:43,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:26:43,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:26:43,673 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:26:43,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2022-11-03 02:26:43,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:26:43,920 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:26:43,939 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:26:43,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2022-11-03 02:26:43,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:26:44,034 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:26:44,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44 WrapperNode [2022-11-03 02:26:44,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:26:44,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:26:44,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:26:44,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:26:44,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,076 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-03 02:26:44,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:26:44,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:26:44,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:26:44,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:26:44,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:26:44,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:26:44,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:26:44,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:26:44,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (1/1) ... [2022-11-03 02:26:44,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:26:44,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:44,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:26:44,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:26:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:26:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:26:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-11-03 02:26:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-11-03 02:26:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:26:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:26:44,200 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:26:44,363 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:26:44,365 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:26:44,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:26:44,600 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:26:44,600 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:26:44,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:26:44 BoogieIcfgContainer [2022-11-03 02:26:44,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:26:44,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:26:44,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:26:44,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:26:44,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:26:43" (1/3) ... [2022-11-03 02:26:44,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43094c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:26:44, skipping insertion in model container [2022-11-03 02:26:44,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:26:44" (2/3) ... [2022-11-03 02:26:44,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43094c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:26:44, skipping insertion in model container [2022-11-03 02:26:44,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:26:44" (3/3) ... [2022-11-03 02:26:44,613 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2022-11-03 02:26:44,621 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:26:44,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:26:44,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:26:44,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:26:44,686 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 02:26:44,744 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:26:44,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 81 transitions, 170 flow [2022-11-03 02:26:44,775 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 81 transitions, 170 flow [2022-11-03 02:26:44,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 81 transitions, 170 flow [2022-11-03 02:26:44,862 INFO L130 PetriNetUnfolder]: 5/80 cut-off events. [2022-11-03 02:26:44,863 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 02:26:44,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 5/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-11-03 02:26:44,869 INFO L118 LiptonReduction]: Number of co-enabled transitions 480 [2022-11-03 02:26:49,145 INFO L133 LiptonReduction]: Checked pairs total: 486 [2022-11-03 02:26:49,146 INFO L135 LiptonReduction]: Total number of compositions: 75 [2022-11-03 02:26:49,154 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 13 transitions, 34 flow [2022-11-03 02:26:49,165 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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) [2022-11-03 02:26:49,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:26:49,188 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;@2daa2e53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:26:49,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:26:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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) [2022-11-03 02:26:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:26:49,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:49,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:26:49,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 02:26:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:49,202 INFO L85 PathProgramCache]: Analyzing trace with hash 9345985, now seen corresponding path program 1 times [2022-11-03 02:26:49,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:49,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393961290] [2022-11-03 02:26:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:49,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:49,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:49,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393961290] [2022-11-03 02:26:49,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393961290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:49,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:49,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:26:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426720021] [2022-11-03 02:26:49,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:26:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:26:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:26:49,413 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 13 states have internal predecessors, (26), 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 4.0) internal successors, (4), 2 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) [2022-11-03 02:26:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:49,453 INFO L93 Difference]: Finished difference Result 11 states and 20 transitions. [2022-11-03 02:26:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:26:49,455 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:26:49,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:49,463 INFO L225 Difference]: With dead ends: 11 [2022-11-03 02:26:49,463 INFO L226 Difference]: Without dead ends: 11 [2022-11-03 02:26:49,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:26:49,468 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:49,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:26:49,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-03 02:26:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-03 02:26:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-03 02:26:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2022-11-03 02:26:49,506 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 20 transitions. Word has length 4 [2022-11-03 02:26:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:49,507 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 20 transitions. [2022-11-03 02:26:49,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 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) [2022-11-03 02:26:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 20 transitions. [2022-11-03 02:26:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:26:49,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:49,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:26:49,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:26:49,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 02:26:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash 9345987, now seen corresponding path program 1 times [2022-11-03 02:26:49,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:49,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473644825] [2022-11-03 02:26:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:49,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:49,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:49,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473644825] [2022-11-03 02:26:49,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473644825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:49,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:49,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:26:49,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438223710] [2022-11-03 02:26:49,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:49,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:49,696 INFO L87 Difference]: Start difference. First operand 11 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:49,718 INFO L93 Difference]: Finished difference Result 14 states and 26 transitions. [2022-11-03 02:26:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:49,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:26:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:49,719 INFO L225 Difference]: With dead ends: 14 [2022-11-03 02:26:49,719 INFO L226 Difference]: Without dead ends: 14 [2022-11-03 02:26:49,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:49,721 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:49,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:26:49,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-03 02:26:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-03 02:26:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2022-11-03 02:26:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2022-11-03 02:26:49,725 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 26 transitions. Word has length 4 [2022-11-03 02:26:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:49,726 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 26 transitions. [2022-11-03 02:26:49,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 26 transitions. [2022-11-03 02:26:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:26:49,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:49,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:26:49,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:26:49,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-03 02:26:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:49,728 INFO L85 PathProgramCache]: Analyzing trace with hash 289726138, now seen corresponding path program 1 times [2022-11-03 02:26:49,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:49,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292105612] [2022-11-03 02:26:49,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:49,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:26:49,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:49,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292105612] [2022-11-03 02:26:49,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292105612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:26:49,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:26:49,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:26:49,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938640778] [2022-11-03 02:26:49,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:26:49,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:26:49,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:26:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:49,789 INFO L87 Difference]: Start difference. First operand 14 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:49,816 INFO L93 Difference]: Finished difference Result 11 states and 20 transitions. [2022-11-03 02:26:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:26:49,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:26:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:49,817 INFO L225 Difference]: With dead ends: 11 [2022-11-03 02:26:49,818 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:26:49,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:26:49,819 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:49,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:26:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:26:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:26:49,824 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) [2022-11-03 02:26:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:26:49,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-03 02:26:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:49,825 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:26:49,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:26:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:26:49,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:26:49,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2022-11-03 02:26:49,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2022-11-03 02:26:49,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-03 02:26:49,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:26:49,837 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 02:26:49,840 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:26:49,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:26:49,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:26:49 BasicIcfg [2022-11-03 02:26:49,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:26:49,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:26:49,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:26:49,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:26:49,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:26:44" (3/4) ... [2022-11-03 02:26:49,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:26:49,861 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2022-11-03 02:26:49,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-03 02:26:49,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-03 02:26:49,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-03 02:26:49,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:26:49,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:26:49,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:26:49,907 INFO L158 Benchmark]: Toolchain (without parser) took 6536.90ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 64.0MB in the beginning and 52.8MB in the end (delta: 11.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,908 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:26:49,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.34ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 67.5MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.55ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,909 INFO L158 Benchmark]: Boogie Preprocessor took 25.12ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:26:49,909 INFO L158 Benchmark]: RCFGBuilder took 499.69ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 50.8MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,910 INFO L158 Benchmark]: TraceAbstraction took 5245.04ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 50.2MB in the beginning and 54.9MB in the end (delta: -4.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,910 INFO L158 Benchmark]: Witness Printer took 56.06ms. Allocated memory is still 125.8MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:26:49,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.34ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 67.5MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.55ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.12ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 499.69ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 50.8MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5245.04ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 50.2MB in the beginning and 54.9MB in the end (delta: -4.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 56.06ms. Allocated memory is still 125.8MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 80 PlacesBefore, 15 PlacesAfterwards, 81 TransitionsBefore, 13 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 416, positive: 396, positive conditional: 0, positive unconditional: 396, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 330, positive: 317, positive conditional: 0, positive unconditional: 317, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 330, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 416, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 330, unknown conditional: 0, unknown unconditional: 330] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 713]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 713]: 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, 91 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:26:49,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a466fe-bb42-440e-90d7-598284f2f711/bin/utaipan-7li7fVZpFI/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