./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS --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 e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee --- 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-8393723 [2022-11-19 08:20:43,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:20:43,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:20:43,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:20:43,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:20:44,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:20:44,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:20:44,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:20:44,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:20:44,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:20:44,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:20:44,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:20:44,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:20:44,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:20:44,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:20:44,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:20:44,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:20:44,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:20:44,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:20:44,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:20:44,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:20:44,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:20:44,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:20:44,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:20:44,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:20:44,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:20:44,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:20:44,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:20:44,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:20:44,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:20:44,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:20:44,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:20:44,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:20:44,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:20:44,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:20:44,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:20:44,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:20:44,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:20:44,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:20:44,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:20:44,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:20:44,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:20:44,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:20:44,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:20:44,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:20:44,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:20:44,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:20:44,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:20:44,091 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:20:44,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:20:44,092 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:20:44,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:20:44,092 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:20:44,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:20:44,092 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:20:44,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:20:44,093 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:20:44,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:20:44,093 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:20:44,093 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:20:44,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:20:44,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:20:44,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:20:44,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:20:44,096 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:20:44,096 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:20:44,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:20:44,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:20:44,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:20:44,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:20:44,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:20:44,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:44,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:20:44,099 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:20:44,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:20:44,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:20:44,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:20:44,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:20:44,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:20:44,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:20:44,100 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_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee [2022-11-19 08:20:44,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:20:44,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:20:44,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:20:44,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:20:44,439 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:20:44,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-19 08:20:44,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/data/6567f47cd/dcaff6c445624bc4bd5bcedd340cd3e8/FLAG2265ee11e [2022-11-19 08:20:45,018 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:20:45,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-19 08:20:45,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/data/6567f47cd/dcaff6c445624bc4bd5bcedd340cd3e8/FLAG2265ee11e [2022-11-19 08:20:45,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/data/6567f47cd/dcaff6c445624bc4bd5bcedd340cd3e8 [2022-11-19 08:20:45,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:20:45,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:20:45,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:45,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:20:45,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:20:45,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:45,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70df124b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45, skipping insertion in model container [2022-11-19 08:20:45,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:45,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:20:45,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:20:45,588 WARN L234 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_65dcfc8e-0e79-4af4-8859-5445907a7141/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-19 08:20:45,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:45,852 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:20:45,863 WARN L234 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_65dcfc8e-0e79-4af4-8859-5445907a7141/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-19 08:20:45,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:20:45,967 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:20:45,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45 WrapperNode [2022-11-19 08:20:45,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:20:45,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:45,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:20:45,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:20:45,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,054 INFO L138 Inliner]: procedures = 177, calls = 89, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 181 [2022-11-19 08:20:46,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:20:46,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:20:46,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:20:46,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:20:46,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:20:46,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:20:46,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:20:46,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:20:46,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (1/1) ... [2022-11-19 08:20:46,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:20:46,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:46,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:20:46,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:20:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:20:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:20:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:20:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:20:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:20:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:20:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 08:20:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 08:20:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 08:20:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 08:20:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:20:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:20:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:20:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:20:46,227 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:20:46,412 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:20:46,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:20:47,021 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:20:47,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:20:47,296 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:20:47,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:47 BoogieIcfgContainer [2022-11-19 08:20:47,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:20:47,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:20:47,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:20:47,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:20:47,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:20:45" (1/3) ... [2022-11-19 08:20:47,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5bf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:47, skipping insertion in model container [2022-11-19 08:20:47,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:20:45" (2/3) ... [2022-11-19 08:20:47,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5bf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:20:47, skipping insertion in model container [2022-11-19 08:20:47,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:47" (3/3) ... [2022-11-19 08:20:47,308 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.opt.i [2022-11-19 08:20:47,317 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:20:47,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:20:47,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 08:20:47,328 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:20:47,440 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:20:47,477 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:20:47,491 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 158 transitions, 336 flow [2022-11-19 08:20:47,495 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 158 transitions, 336 flow [2022-11-19 08:20:47,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 336 flow [2022-11-19 08:20:47,586 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-11-19 08:20:47,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:20:47,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 2/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-19 08:20:47,597 INFO L119 LiptonReduction]: Number of co-enabled transitions 3906 [2022-11-19 08:21:05,404 INFO L134 LiptonReduction]: Checked pairs total: 13532 [2022-11-19 08:21:05,405 INFO L136 LiptonReduction]: Total number of compositions: 136 [2022-11-19 08:21:05,411 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 38 transitions, 96 flow [2022-11-19 08:21:05,819 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7740 states, 7660 states have (on average 4.3383812010443865) internal successors, (33232), 7739 states have internal predecessors, (33232), 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) [2022-11-19 08:21:05,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:21:05,855 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;@7290b8d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:21:05,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-19 08:21:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 7740 states, 7660 states have (on average 4.3383812010443865) internal successors, (33232), 7739 states have internal predecessors, (33232), 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) [2022-11-19 08:21:05,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:21:05,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:05,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:21:05,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:21:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash 888078814, now seen corresponding path program 1 times [2022-11-19 08:21:05,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:05,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255640142] [2022-11-19 08:21:05,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:05,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:06,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:06,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255640142] [2022-11-19 08:21:06,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255640142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:06,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:06,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:21:06,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507967587] [2022-11-19 08:21:06,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:06,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:21:06,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:21:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:21:06,328 INFO L87 Difference]: Start difference. First operand has 7740 states, 7660 states have (on average 4.3383812010443865) internal successors, (33232), 7739 states have internal predecessors, (33232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-19 08:21:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:06,560 INFO L93 Difference]: Finished difference Result 3980 states and 13773 transitions. [2022-11-19 08:21:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:21:06,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-11-19 08:21:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:06,614 INFO L225 Difference]: With dead ends: 3980 [2022-11-19 08:21:06,614 INFO L226 Difference]: Without dead ends: 3980 [2022-11-19 08:21:06,615 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 [2022-11-19 08:21:06,619 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:06,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:21:06,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3980 states. [2022-11-19 08:21:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3980 to 3980. [2022-11-19 08:21:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3916 states have (on average 3.517109295199183) internal successors, (13773), 3979 states have internal predecessors, (13773), 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) [2022-11-19 08:21:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 13773 transitions. [2022-11-19 08:21:07,000 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 13773 transitions. Word has length 5 [2022-11-19 08:21:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 13773 transitions. [2022-11-19 08:21:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-19 08:21:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 13773 transitions. [2022-11-19 08:21:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:21:07,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:07,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:21:07,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:21:07,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:21:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 931521934, now seen corresponding path program 1 times [2022-11-19 08:21:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:07,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484613108] [2022-11-19 08:21:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:07,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:07,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484613108] [2022-11-19 08:21:07,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484613108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:07,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:07,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:21:07,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782318529] [2022-11-19 08:21:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:07,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:21:07,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:07,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:21:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:21:07,180 INFO L87 Difference]: Start difference. First operand 3980 states and 13773 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:21:07,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:07,370 INFO L93 Difference]: Finished difference Result 2452 states and 8379 transitions. [2022-11-19 08:21:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:21:07,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:21:07,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:07,391 INFO L225 Difference]: With dead ends: 2452 [2022-11-19 08:21:07,391 INFO L226 Difference]: Without dead ends: 2452 [2022-11-19 08:21:07,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:21:07,392 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:07,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 8 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:21:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2022-11-19 08:21:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2452. [2022-11-19 08:21:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2452 states, 2438 states have (on average 3.436833470057424) internal successors, (8379), 2451 states have internal predecessors, (8379), 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) [2022-11-19 08:21:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 8379 transitions. [2022-11-19 08:21:07,541 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 8379 transitions. Word has length 10 [2022-11-19 08:21:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:07,542 INFO L495 AbstractCegarLoop]: Abstraction has 2452 states and 8379 transitions. [2022-11-19 08:21:07,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:21:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 8379 transitions. [2022-11-19 08:21:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:21:07,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:07,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:21:07,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:21:07,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:21:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1187592081, now seen corresponding path program 1 times [2022-11-19 08:21:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:07,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080228495] [2022-11-19 08:21:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:07,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:07,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080228495] [2022-11-19 08:21:07,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080228495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:07,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:07,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:21:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873491311] [2022-11-19 08:21:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:07,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:21:07,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:21:07,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:21:07,709 INFO L87 Difference]: Start difference. First operand 2452 states and 8379 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-19 08:21:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:07,880 INFO L93 Difference]: Finished difference Result 1126 states and 3325 transitions. [2022-11-19 08:21:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:21:07,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-19 08:21:07,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:07,887 INFO L225 Difference]: With dead ends: 1126 [2022-11-19 08:21:07,888 INFO L226 Difference]: Without dead ends: 1126 [2022-11-19 08:21:07,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:21:07,889 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:07,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:21:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-19 08:21:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2022-11-19 08:21:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1116 states have (on average 2.979390681003584) internal successors, (3325), 1125 states have internal predecessors, (3325), 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) [2022-11-19 08:21:07,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3325 transitions. [2022-11-19 08:21:07,925 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3325 transitions. Word has length 11 [2022-11-19 08:21:07,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:07,926 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 3325 transitions. [2022-11-19 08:21:07,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-19 08:21:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3325 transitions. [2022-11-19 08:21:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:21:07,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:07,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:21:07,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:21:07,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:21:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1436501307, now seen corresponding path program 1 times [2022-11-19 08:21:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:07,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679500430] [2022-11-19 08:21:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:07,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:08,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:08,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679500430] [2022-11-19 08:21:08,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679500430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:08,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:08,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:21:08,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506476166] [2022-11-19 08:21:08,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:08,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:21:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:08,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:21:08,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:21:08,162 INFO L87 Difference]: Start difference. First operand 1126 states and 3325 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 08:21:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:08,366 INFO L93 Difference]: Finished difference Result 709 states and 2128 transitions. [2022-11-19 08:21:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:21:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-19 08:21:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:08,370 INFO L225 Difference]: With dead ends: 709 [2022-11-19 08:21:08,371 INFO L226 Difference]: Without dead ends: 709 [2022-11-19 08:21:08,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:21:08,372 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 69 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:08,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 12 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:21:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-11-19 08:21:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2022-11-19 08:21:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 705 states have (on average 3.0184397163120567) internal successors, (2128), 708 states have internal predecessors, (2128), 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) [2022-11-19 08:21:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2128 transitions. [2022-11-19 08:21:08,395 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2128 transitions. Word has length 17 [2022-11-19 08:21:08,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:08,395 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 2128 transitions. [2022-11-19 08:21:08,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 08:21:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2128 transitions. [2022-11-19 08:21:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:21:08,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:21:08,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:21:08,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:21:08,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:21:08,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:21:08,403 INFO L85 PathProgramCache]: Analyzing trace with hash 640363359, now seen corresponding path program 1 times [2022-11-19 08:21:08,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:21:08,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356522134] [2022-11-19 08:21:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:21:08,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:21:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:21:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:21:08,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:21:08,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356522134] [2022-11-19 08:21:08,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356522134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:21:08,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:21:08,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:21:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601667318] [2022-11-19 08:21:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:21:08,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:21:08,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:21:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:21:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:21:08,656 INFO L87 Difference]: Start difference. First operand 709 states and 2128 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-19 08:21:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:21:08,806 INFO L93 Difference]: Finished difference Result 651 states and 2028 transitions. [2022-11-19 08:21:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:21:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-11-19 08:21:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:21:08,807 INFO L225 Difference]: With dead ends: 651 [2022-11-19 08:21:08,807 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:21:08,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:21:08,808 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:21:08,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 8 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:21:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:21:08,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:21:08,809 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) [2022-11-19 08:21:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:21:08,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-19 08:21:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:21:08,810 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:21:08,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-19 08:21:08,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:21:08,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:21:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-19 08:21:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-19 08:21:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-19 08:21:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-19 08:21:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-19 08:21:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-19 08:21:08,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-19 08:21:08,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-19 08:21:08,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-19 08:21:08,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-19 08:21:08,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-19 08:21:08,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-19 08:21:08,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-19 08:21:08,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-19 08:21:08,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-19 08:21:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:21:08,833 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 08:21:08,840 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:21:08,840 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:21:08,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:21:08 BasicIcfg [2022-11-19 08:21:08,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:21:08,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:21:08,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:21:08,845 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:21:08,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:20:47" (3/4) ... [2022-11-19 08:21:08,848 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:21:08,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 08:21:08,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 08:21:08,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 08:21:08,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-19 08:21:08,863 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-11-19 08:21:08,863 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-19 08:21:08,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:21:08,864 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:21:08,928 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:21:08,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:21:08,929 INFO L158 Benchmark]: Toolchain (without parser) took 23604.08ms. Allocated memory was 127.9MB in the beginning and 232.8MB in the end (delta: 104.9MB). Free memory was 85.5MB in the beginning and 141.9MB in the end (delta: -56.4MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,929 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:21:08,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.08ms. Allocated memory is still 127.9MB. Free memory was 85.3MB in the beginning and 86.3MB in the end (delta: -996.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.10ms. Allocated memory is still 127.9MB. Free memory was 86.3MB in the beginning and 83.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,930 INFO L158 Benchmark]: Boogie Preprocessor took 78.39ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 80.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,930 INFO L158 Benchmark]: RCFGBuilder took 1158.05ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 55.9MB in the end (delta: 25.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,930 INFO L158 Benchmark]: TraceAbstraction took 21544.08ms. Allocated memory was 127.9MB in the beginning and 232.8MB in the end (delta: 104.9MB). Free memory was 55.0MB in the beginning and 146.1MB in the end (delta: -91.0MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,931 INFO L158 Benchmark]: Witness Printer took 82.85ms. Allocated memory is still 232.8MB. Free memory was 146.1MB in the beginning and 141.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:21:08,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.08ms. Allocated memory is still 127.9MB. Free memory was 85.3MB in the beginning and 86.3MB in the end (delta: -996.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.10ms. Allocated memory is still 127.9MB. Free memory was 86.3MB in the beginning and 83.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.39ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 80.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1158.05ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 55.9MB in the end (delta: 25.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * TraceAbstraction took 21544.08ms. Allocated memory was 127.9MB in the beginning and 232.8MB in the end (delta: 104.9MB). Free memory was 55.0MB in the beginning and 146.1MB in the end (delta: -91.0MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Witness Printer took 82.85ms. Allocated memory is still 232.8MB. Free memory was 146.1MB in the beginning and 141.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9s, 169 PlacesBefore, 50 PlacesAfterwards, 158 TransitionsBefore, 38 TransitionsAfterwards, 3906 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 136 TotalNumberOfCompositions, 13532 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5344, independent: 4991, independent conditional: 0, independent unconditional: 4991, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2810, independent: 2716, independent conditional: 0, independent unconditional: 2716, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2810, independent: 2615, independent conditional: 0, independent unconditional: 2615, dependent: 195, dependent conditional: 0, dependent unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 195, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1671, independent: 305, independent conditional: 0, independent unconditional: 305, dependent: 1366, dependent conditional: 0, dependent unconditional: 1366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5344, independent: 2275, independent conditional: 0, independent unconditional: 2275, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 2810, unknown conditional: 0, unknown unconditional: 2810] , Statistics on independence cache: Total cache size (in pairs): 286, Positive cache size: 239, Positive conditional cache size: 0, Positive unconditional cache size: 239, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, 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: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: 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 9 procedures, 199 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 24 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7740occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 08:21:08,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dcfc8e-0e79-4af4-8859-5445907a7141/bin/utaipan-I9t0OCRTmS/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