./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi010.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_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/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_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/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_418291d5-d6f9-4a41-ba58-2cc098332e04/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 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- 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 03:51:23,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:51:23,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:51:23,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:51:23,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:51:23,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:51:23,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:51:23,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:51:23,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:51:23,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:51:23,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:51:23,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:51:23,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:51:23,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:51:23,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:51:23,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:51:23,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:51:23,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:51:23,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:51:23,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:51:23,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:51:23,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:51:23,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:51:23,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:51:23,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:51:23,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:51:23,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:51:23,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:51:23,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:51:23,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:51:23,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:51:23,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:51:23,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:51:23,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:51:23,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:51:23,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:51:23,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:51:23,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:51:23,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:51:23,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:51:23,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:51:23,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 03:51:24,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:51:24,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:51:24,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:51:24,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:51:24,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:51:24,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:51:24,022 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:51:24,022 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:51:24,022 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:51:24,023 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:51:24,024 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:51:24,024 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:51:24,024 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:51:24,024 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:51:24,025 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:51:24,025 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:51:24,025 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:51:24,025 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:51:24,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:51:24,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:51:24,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:51:24,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:51:24,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:51:24,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:51:24,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:51:24,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:51:24,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:51:24,028 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 03:51:24,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:51:24,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:51:24,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:51:24,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:51:24,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:51:24,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:51:24,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:51:24,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:51:24,030 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:51:24,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:51:24,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:51:24,031 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:51:24,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:51:24,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:51:24,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:51:24,032 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_418291d5-d6f9-4a41-ba58-2cc098332e04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2022-11-03 03:51:24,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:51:24,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:51:24,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:51:24,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:51:24,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:51:24,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2022-11-03 03:51:24,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/data/56fc85b96/4662ce127d5f48c5bd5c6b993f34a6da/FLAGe6681db1c [2022-11-03 03:51:24,916 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:51:24,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/sv-benchmarks/c/pthread-wmm/rfi010.i [2022-11-03 03:51:24,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/data/56fc85b96/4662ce127d5f48c5bd5c6b993f34a6da/FLAGe6681db1c [2022-11-03 03:51:25,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/data/56fc85b96/4662ce127d5f48c5bd5c6b993f34a6da [2022-11-03 03:51:25,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:51:25,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:51:25,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:51:25,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:51:25,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:51:25,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed012fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25, skipping insertion in model container [2022-11-03 03:51:25,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:51:25,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:51:25,490 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_418291d5-d6f9-4a41-ba58-2cc098332e04/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-11-03 03:51:25,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:25,715 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:51:25,737 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_418291d5-d6f9-4a41-ba58-2cc098332e04/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-11-03 03:51:25,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:51:25,851 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:51:25,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25 WrapperNode [2022-11-03 03:51:25,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:51:25,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:25,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:51:25,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:51:25,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,959 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 266 [2022-11-03 03:51:25,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:51:25,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:51:25,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:51:25,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:51:25,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,994 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:25,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:26,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:51:26,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:51:26,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:51:26,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:51:26,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (1/1) ... [2022-11-03 03:51:26,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:51:26,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:51:26,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:51:26,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:51:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:51:26,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 03:51:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:51:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:51:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:51:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 03:51:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 03:51:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 03:51:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 03:51:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:51:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 03:51:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:51:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:51:26,098 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 03:51:26,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:51:26,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:51:27,026 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:51:27,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:51:27,591 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:51:27,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:27 BoogieIcfgContainer [2022-11-03 03:51:27,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:51:27,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:51:27,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:51:27,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:51:27,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:51:25" (1/3) ... [2022-11-03 03:51:27,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922d7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:27, skipping insertion in model container [2022-11-03 03:51:27,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:25" (2/3) ... [2022-11-03 03:51:27,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922d7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:27, skipping insertion in model container [2022-11-03 03:51:27,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:27" (3/3) ... [2022-11-03 03:51:27,609 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi010.i [2022-11-03 03:51:27,619 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:51:27,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:51:27,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 03:51:27,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:51:27,729 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 03:51:27,791 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:51:27,809 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 98 transitions, 206 flow [2022-11-03 03:51:27,817 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 98 transitions, 206 flow [2022-11-03 03:51:27,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2022-11-03 03:51:27,889 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-11-03 03:51:27,889 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 03:51:27,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-03 03:51:27,895 INFO L118 LiptonReduction]: Number of co-enabled transitions 1352 [2022-11-03 03:51:39,780 INFO L133 LiptonReduction]: Checked pairs total: 4505 [2022-11-03 03:51:39,781 INFO L135 LiptonReduction]: Total number of compositions: 91 [2022-11-03 03:51:39,789 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2022-11-03 03:51:39,824 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 202 states, 194 states have (on average 2.7422680412371134) internal successors, (532), 201 states have internal predecessors, (532), 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 03:51:39,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:51:39,848 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;@7d30759b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:51:39,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-03 03:51:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 194 states have (on average 2.7422680412371134) internal successors, (532), 201 states have internal predecessors, (532), 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 03:51:39,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 03:51:39,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:39,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 03:51:39,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 03:51:39,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:39,863 INFO L85 PathProgramCache]: Analyzing trace with hash 37619240, now seen corresponding path program 1 times [2022-11-03 03:51:39,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:39,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41446089] [2022-11-03 03:51:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:39,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:40,170 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 03:51:40,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:40,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41446089] [2022-11-03 03:51:40,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41446089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:40,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:40,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 03:51:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753898299] [2022-11-03 03:51:40,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:40,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:51:40,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:51:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:51:40,204 INFO L87 Difference]: Start difference. First operand has 202 states, 194 states have (on average 2.7422680412371134) internal successors, (532), 201 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 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 03:51:40,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:40,332 INFO L93 Difference]: Finished difference Result 118 states and 257 transitions. [2022-11-03 03:51:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:51:40,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 03:51:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:40,349 INFO L225 Difference]: With dead ends: 118 [2022-11-03 03:51:40,349 INFO L226 Difference]: Without dead ends: 118 [2022-11-03 03:51:40,350 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 [2022-11-03 03:51:40,356 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:40,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:51:40,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-03 03:51:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-03 03:51:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 114 states have (on average 2.254385964912281) internal successors, (257), 117 states have internal predecessors, (257), 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 03:51:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 257 transitions. [2022-11-03 03:51:40,414 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 257 transitions. Word has length 4 [2022-11-03 03:51:40,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:40,414 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 257 transitions. [2022-11-03 03:51:40,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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 03:51:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 257 transitions. [2022-11-03 03:51:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 03:51:40,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:40,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:40,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:51:40,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 03:51:40,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:40,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1971231512, now seen corresponding path program 1 times [2022-11-03 03:51:40,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:40,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814802544] [2022-11-03 03:51:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:40,798 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 03:51:40,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:40,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814802544] [2022-11-03 03:51:40,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814802544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:40,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:40,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:51:40,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733277549] [2022-11-03 03:51:40,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:40,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:51:40,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:40,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:51:40,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:51:40,812 INFO L87 Difference]: Start difference. First operand 118 states and 257 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) [2022-11-03 03:51:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:40,922 INFO L93 Difference]: Finished difference Result 110 states and 243 transitions. [2022-11-03 03:51:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:51:40,923 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 [2022-11-03 03:51:40,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:40,926 INFO L225 Difference]: With dead ends: 110 [2022-11-03 03:51:40,926 INFO L226 Difference]: Without dead ends: 110 [2022-11-03 03:51:40,927 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 [2022-11-03 03:51:40,930 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:40,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:51:40,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-03 03:51:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-11-03 03:51:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.25) internal successors, (243), 109 states have internal predecessors, (243), 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 03:51:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 243 transitions. [2022-11-03 03:51:40,952 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 243 transitions. Word has length 11 [2022-11-03 03:51:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:40,953 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 243 transitions. [2022-11-03 03:51:40,953 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) [2022-11-03 03:51:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 243 transitions. [2022-11-03 03:51:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:51:40,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:40,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:40,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:51:40,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 03:51:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash 978635009, now seen corresponding path program 1 times [2022-11-03 03:51:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:51:40,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616473267] [2022-11-03 03:51:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:51:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:51:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:51:41,174 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 03:51:41,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:51:41,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616473267] [2022-11-03 03:51:41,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616473267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:51:41,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:51:41,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:51:41,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198077129] [2022-11-03 03:51:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:51:41,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:51:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:51:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:51:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:51:41,178 INFO L87 Difference]: Start difference. First operand 110 states and 243 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 03:51:41,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:41,255 INFO L93 Difference]: Finished difference Result 102 states and 229 transitions. [2022-11-03 03:51:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:51:41,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-03 03:51:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:41,256 INFO L225 Difference]: With dead ends: 102 [2022-11-03 03:51:41,256 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:51:41,257 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 [2022-11-03 03:51:41,258 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 22 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:41,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:51:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:51:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:51:41,261 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 03:51:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:51:41,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-03 03:51:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:41,261 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:51:41,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 03:51:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:51:41,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:51:41,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-03 03:51:41,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-03 03:51:41,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-03 03:51:41,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-03 03:51:41,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-03 03:51:41,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-03 03:51:41,267 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-03 03:51:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-03 03:51:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-03 03:51:41,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-03 03:51:41,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:51:41,271 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 03:51:41,276 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:51:41,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:51:41,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:51:41 BasicIcfg [2022-11-03 03:51:41,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:51:41,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:51:41,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:51:41,281 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:51:41,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:27" (3/4) ... [2022-11-03 03:51:41,284 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:51:41,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 03:51:41,290 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 03:51:41,294 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-03 03:51:41,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-03 03:51:41,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 03:51:41,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:51:41,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:51:41,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:51:41,332 INFO L158 Benchmark]: Toolchain (without parser) took 16089.07ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 44.5MB in the beginning and 161.2MB in the end (delta: -116.6MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,333 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 52.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.43ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 44.3MB in the beginning and 79.1MB in the end (delta: -34.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.11ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,334 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 73.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,334 INFO L158 Benchmark]: RCFGBuilder took 1592.71ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 73.5MB in the beginning and 130.0MB in the end (delta: -56.5MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,335 INFO L158 Benchmark]: TraceAbstraction took 13682.79ms. Allocated memory was 174.1MB in the beginning and 268.4MB in the end (delta: 94.4MB). Free memory was 129.0MB in the beginning and 164.3MB in the end (delta: -35.3MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,335 INFO L158 Benchmark]: Witness Printer took 51.35ms. Allocated memory is still 268.4MB. Free memory was 164.3MB in the beginning and 161.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:51:41,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 52.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.43ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 44.3MB in the beginning and 79.1MB in the end (delta: -34.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.11ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 73.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1592.71ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 73.5MB in the beginning and 130.0MB in the end (delta: -56.5MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13682.79ms. Allocated memory was 174.1MB in the beginning and 268.4MB in the end (delta: 94.4MB). Free memory was 129.0MB in the beginning and 164.3MB in the end (delta: -35.3MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Witness Printer took 51.35ms. Allocated memory is still 268.4MB. Free memory was 164.3MB in the beginning and 161.2MB in the end (delta: 3.1MB). 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: 12.0s, 103 PlacesBefore, 28 PlacesAfterwards, 98 TransitionsBefore, 22 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 8 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 4505 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2235, positive: 2034, positive conditional: 0, positive unconditional: 2034, negative: 201, negative conditional: 0, negative unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1072, positive: 1007, positive conditional: 0, positive unconditional: 1007, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1072, positive: 978, positive conditional: 0, positive unconditional: 978, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1240, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 1149, negative conditional: 0, negative unconditional: 1149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2235, positive: 1027, positive conditional: 0, positive unconditional: 1027, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 1072, unknown conditional: 0, unknown unconditional: 1072] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - 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: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: 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 5 procedures, 119 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 6 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 03:51:41,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418291d5-d6f9-4a41-ba58-2cc098332e04/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