./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9 --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 67d0d28278c33bd8f728db1165a077a9d9ba1963e0d97b66e361587c8715de93 --- 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-6b4ec56 [2022-11-20 19:01:38,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:01:38,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:01:38,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:01:38,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:01:38,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:01:38,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:01:38,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:01:38,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:01:38,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:01:38,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:01:38,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:01:38,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:01:38,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:01:38,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:01:38,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:01:38,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:01:38,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:01:38,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:01:38,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:01:38,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:01:38,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:01:38,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:01:38,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:01:38,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:01:38,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:01:38,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:01:38,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:01:38,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:01:38,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:01:38,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:01:38,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:01:38,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:01:38,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:01:38,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:01:38,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:01:38,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:01:38,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:01:38,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:01:38,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:01:38,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:01:38,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 19:01:38,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:01:38,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:01:38,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:01:38,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:01:38,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:01:38,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:01:38,235 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:01:38,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:01:38,235 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:01:38,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:01:38,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:01:38,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:01:38,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:01:38,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:01:38,237 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:01:38,237 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:01:38,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:01:38,237 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:01:38,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:01:38,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:01:38,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 19:01:38,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:01:38,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:01:38,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:01:38,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:01:38,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:01:38,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:01:38,240 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 19:01:38,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:01:38,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:01:38,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:01:38,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:01:38,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:01:38,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:01:38,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:01:38,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:01:38,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:01:38,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:01:38,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:01:38,243 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:01:38,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:01:38,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:01:38,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:01:38,244 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_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d0d28278c33bd8f728db1165a077a9d9ba1963e0d97b66e361587c8715de93 [2022-11-20 19:01:38,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:01:38,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:01:38,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:01:38,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:01:38,558 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:01:38,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 19:01:41,739 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:01:41,994 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:01:41,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 19:01:42,019 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/data/c46ff7a9d/5e090cb9fd81439eac5640e574a0ec9f/FLAG6b29d6d28 [2022-11-20 19:01:42,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/data/c46ff7a9d/5e090cb9fd81439eac5640e574a0ec9f [2022-11-20 19:01:42,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:01:42,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:01:42,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:01:42,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:01:42,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:01:42,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8eaf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42, skipping insertion in model container [2022-11-20 19:01:42,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:01:42,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:01:42,293 WARN L237 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_b2f73475-d46e-4d6e-99ee-58c01d47d132/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 19:01:42,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:01:42,546 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:01:42,565 WARN L237 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_b2f73475-d46e-4d6e-99ee-58c01d47d132/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 19:01:42,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:01:42,712 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:01:42,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42 WrapperNode [2022-11-20 19:01:42,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:01:42,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:01:42,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:01:42,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:01:42,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,805 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-11-20 19:01:42,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:01:42,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:01:42,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:01:42,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:01:42,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:01:42,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:01:42,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:01:42,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:01:42,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (1/1) ... [2022-11-20 19:01:42,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:01:42,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:01:42,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:01:42,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:01:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 19:01:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 19:01:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:01:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 19:01:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 19:01:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 19:01:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 19:01:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 19:01:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 19:01:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 19:01:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 19:01:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:01:42,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:01:42,969 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 19:01:43,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:01:43,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:01:43,555 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:01:43,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:01:43,754 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 19:01:43,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:43 BoogieIcfgContainer [2022-11-20 19:01:43,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:01:43,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:01:43,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:01:43,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:01:43,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:01:42" (1/3) ... [2022-11-20 19:01:43,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4535b76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:01:43, skipping insertion in model container [2022-11-20 19:01:43,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:01:42" (2/3) ... [2022-11-20 19:01:43,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4535b76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:01:43, skipping insertion in model container [2022-11-20 19:01:43,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:43" (3/3) ... [2022-11-20 19:01:43,768 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi001_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 19:01:43,778 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 19:01:43,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:01:43,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 19:01:43,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 19:01:43,847 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 19:01:43,905 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 19:01:43,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 100 transitions, 210 flow [2022-11-20 19:01:43,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 100 transitions, 210 flow [2022-11-20 19:01:43,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 210 flow [2022-11-20 19:01:43,988 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-20 19:01:43,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 19:01:43,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-11-20 19:01:43,997 INFO L119 LiptonReduction]: Number of co-enabled transitions 1524 [2022-11-20 19:01:49,198 INFO L134 LiptonReduction]: Checked pairs total: 4783 [2022-11-20 19:01:49,199 INFO L136 LiptonReduction]: Total number of compositions: 90 [2022-11-20 19:01:49,208 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 56 flow [2022-11-20 19:01:49,243 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 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) [2022-11-20 19:01:49,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:01:49,277 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;@26f7abc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:01:49,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-20 19:01:49,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 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) [2022-11-20 19:01:49,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 19:01:49,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:01:49,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 19:01:49,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 19:01:49,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:01:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash 428638139, now seen corresponding path program 1 times [2022-11-20 19:01:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:01:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819909924] [2022-11-20 19:01:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:01:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:01:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:01:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:01:49,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:01:49,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819909924] [2022-11-20 19:01:49,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819909924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:01:49,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:01:49,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 19:01:49,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511418436] [2022-11-20 19:01:49,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:01:49,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 19:01:49,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:01:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 19:01:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:01:49,785 INFO L87 Difference]: Start difference. First operand has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 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) [2022-11-20 19:01:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:01:49,875 INFO L93 Difference]: Finished difference Result 178 states and 423 transitions. [2022-11-20 19:01:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 19:01:49,878 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 [2022-11-20 19:01:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:01:49,894 INFO L225 Difference]: With dead ends: 178 [2022-11-20 19:01:49,894 INFO L226 Difference]: Without dead ends: 178 [2022-11-20 19:01:49,895 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 [2022-11-20 19:01:49,901 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:01:49,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:01:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-20 19:01:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-20 19:01:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 2.4171428571428573) internal successors, (423), 177 states have internal predecessors, (423), 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) [2022-11-20 19:01:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 423 transitions. [2022-11-20 19:01:49,965 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 423 transitions. Word has length 5 [2022-11-20 19:01:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:01:49,965 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 423 transitions. [2022-11-20 19:01:49,965 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) [2022-11-20 19:01:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 423 transitions. [2022-11-20 19:01:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 19:01:49,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:01:49,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 19:01:49,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 19:01:49,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 19:01:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:01:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash 402879154, now seen corresponding path program 1 times [2022-11-20 19:01:49,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:01:49,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394408607] [2022-11-20 19:01:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:01:49,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:01:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:01:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:01:50,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:01:50,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394408607] [2022-11-20 19:01:50,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394408607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:01:50,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:01:50,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 19:01:50,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95511345] [2022-11-20 19:01:50,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:01:50,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 19:01:50,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:01:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 19:01:50,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:01:50,103 INFO L87 Difference]: Start difference. First operand 178 states and 423 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-20 19:01:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:01:50,179 INFO L93 Difference]: Finished difference Result 136 states and 309 transitions. [2022-11-20 19:01:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 19:01:50,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-20 19:01:50,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:01:50,181 INFO L225 Difference]: With dead ends: 136 [2022-11-20 19:01:50,181 INFO L226 Difference]: Without dead ends: 136 [2022-11-20 19:01:50,182 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 [2022-11-20 19:01:50,183 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:01:50,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:01:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-20 19:01:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-11-20 19:01:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 134 states have (on average 2.3059701492537314) internal successors, (309), 135 states have internal predecessors, (309), 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) [2022-11-20 19:01:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 309 transitions. [2022-11-20 19:01:50,194 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 309 transitions. Word has length 6 [2022-11-20 19:01:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:01:50,195 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 309 transitions. [2022-11-20 19:01:50,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-20 19:01:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 309 transitions. [2022-11-20 19:01:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 19:01:50,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:01:50,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:01:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 19:01:50,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 19:01:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:01:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1190530116, now seen corresponding path program 1 times [2022-11-20 19:01:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:01:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943031041] [2022-11-20 19:01:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:01:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:01:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:01:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:01:50,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:01:50,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943031041] [2022-11-20 19:01:50,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943031041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:01:50,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:01:50,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 19:01:50,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581906658] [2022-11-20 19:01:50,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:01:50,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 19:01:50,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:01:50,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 19:01:50,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 19:01:50,395 INFO L87 Difference]: Start difference. First operand 136 states and 309 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-20 19:01:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:01:50,458 INFO L93 Difference]: Finished difference Result 128 states and 295 transitions. [2022-11-20 19:01:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 19:01:50,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-20 19:01:50,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:01:50,460 INFO L225 Difference]: With dead ends: 128 [2022-11-20 19:01:50,460 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 19:01:50,460 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 [2022-11-20 19:01:50,461 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 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 [2022-11-20 19:01:50,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:01:50,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 19:01:50,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 19:01:50,464 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) [2022-11-20 19:01:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 19:01:50,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-20 19:01:50,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:01:50,464 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 19:01:50,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-20 19:01:50,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 19:01:50,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 19:01:50,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-20 19:01:50,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-20 19:01:50,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-20 19:01:50,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-20 19:01:50,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-20 19:01:50,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-20 19:01:50,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-20 19:01:50,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-20 19:01:50,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-20 19:01:50,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-20 19:01:50,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 19:01:50,485 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 19:01:50,491 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 19:01:50,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 19:01:50,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:01:50 BasicIcfg [2022-11-20 19:01:50,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 19:01:50,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 19:01:50,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 19:01:50,498 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 19:01:50,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:01:43" (3/4) ... [2022-11-20 19:01:50,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 19:01:50,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 19:01:50,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 19:01:50,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 19:01:50,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 19:01:50,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 19:01:50,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 19:01:50,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 19:01:50,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 19:01:50,552 INFO L158 Benchmark]: Toolchain (without parser) took 8513.90ms. Allocated memory was 136.3MB in the beginning and 201.3MB in the end (delta: 65.0MB). Free memory was 76.3MB in the beginning and 101.3MB in the end (delta: -25.1MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,552 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:01:50,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.45ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 128.7MB in the end (delta: -52.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.16ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 126.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,554 INFO L158 Benchmark]: Boogie Preprocessor took 47.49ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,554 INFO L158 Benchmark]: RCFGBuilder took 890.35ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 93.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,554 INFO L158 Benchmark]: TraceAbstraction took 6735.75ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 92.6MB in the beginning and 104.5MB in the end (delta: -11.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,555 INFO L158 Benchmark]: Witness Printer took 53.68ms. Allocated memory is still 201.3MB. Free memory was 104.5MB in the beginning and 101.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 19:01:50,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.45ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 76.1MB in the beginning and 128.7MB in the end (delta: -52.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.16ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 126.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.49ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 890.35ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 93.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6735.75ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 92.6MB in the beginning and 104.5MB in the end (delta: -11.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Witness Printer took 53.68ms. Allocated memory is still 201.3MB. Free memory was 104.5MB in the beginning and 101.3MB in the end (delta: 3.2MB). 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: 5.3s, 105 PlacesBefore, 29 PlacesAfterwards, 100 TransitionsBefore, 23 TransitionsAfterwards, 1524 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 4783 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2336, independent: 2137, independent conditional: 0, independent unconditional: 2137, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1136, independent: 1084, independent conditional: 0, independent unconditional: 1084, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1136, independent: 1063, independent conditional: 0, independent unconditional: 1063, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 73, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 661, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 602, dependent conditional: 0, dependent unconditional: 602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2336, independent: 1053, independent conditional: 0, independent unconditional: 1053, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 1136, unknown conditional: 0, unknown unconditional: 1136] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: 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, 123 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 8 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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! [2022-11-20 19:01:50,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2f73475-d46e-4d6e-99ee-58c01d47d132/bin/utaipan-6cKwYrpEi9/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