./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba --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 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- 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-b5237d8 [2022-11-22 02:29:50,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:29:50,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:29:50,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:29:50,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:29:50,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:29:50,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:29:50,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:29:50,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:29:50,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:29:50,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:29:50,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:29:50,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:29:50,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:29:50,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:29:50,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:29:50,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:29:50,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:29:50,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:29:50,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:29:50,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:29:50,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:29:50,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:29:50,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:29:50,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:29:50,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:29:50,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:29:50,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:29:50,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:29:50,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:29:50,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:29:50,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:29:50,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:29:50,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:29:50,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:29:50,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:29:50,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:29:50,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:29:50,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:29:50,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:29:50,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:29:50,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:29:50,442 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:29:50,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:29:50,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:29:50,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:29:50,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:29:50,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:29:50,446 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:29:50,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:29:50,447 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:29:50,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:29:50,448 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:29:50,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:29:50,449 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:29:50,449 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:29:50,449 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:29:50,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:29:50,450 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:29:50,450 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:29:50,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:29:50,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:29:50,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:29:50,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:29:50,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:29:50,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:29:50,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:29:50,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:29:50,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:29:50,465 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:29:50,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:29:50,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:29:50,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:29:50,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:29:50,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:29:50,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:29:50,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:29:50,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:29:50,468 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:29:50,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:29:50,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:29:50,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:29:50,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:29:50,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:29:50,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:29:50,470 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_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2022-11-22 02:29:50,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:29:50,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:29:50,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:29:50,830 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:29:50,831 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:29:50,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-22 02:29:53,808 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:29:54,102 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:29:54,103 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-22 02:29:54,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/data/801cf5690/aa1809519b37436d80ea20a1f93251d4/FLAG2bed2f2bf [2022-11-22 02:29:54,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/data/801cf5690/aa1809519b37436d80ea20a1f93251d4 [2022-11-22 02:29:54,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:29:54,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:29:54,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:29:54,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:29:54,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:29:54,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c62c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54, skipping insertion in model container [2022-11-22 02:29:54,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:29:54,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:29:54,445 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_4fae7668-044b-49e9-8245-4748f4439e91/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-22 02:29:54,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:29:54,740 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:29:54,759 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_4fae7668-044b-49e9-8245-4748f4439e91/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-22 02:29:54,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:29:54,893 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:29:54,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54 WrapperNode [2022-11-22 02:29:54,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:29:54,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:29:54,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:29:54,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:29:54,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,975 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-22 02:29:54,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:29:54,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:29:54,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:29:54,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:29:54,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:54,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:29:55,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:29:55,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:29:55,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:29:55,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (1/1) ... [2022-11-22 02:29:55,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:29:55,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:29:55,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:29:55,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:29:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:29:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:29:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:29:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:29:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:29:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-22 02:29:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-22 02:29:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-22 02:29:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-22 02:29:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-22 02:29:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-22 02:29:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-22 02:29:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-22 02:29:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:29:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:29:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:29:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:29:55,125 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:29:55,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:29:55,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:29:55,797 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:29:55,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:29:55,938 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:29:55,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:29:55 BoogieIcfgContainer [2022-11-22 02:29:55,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:29:55,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:29:55,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:29:55,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:29:55,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:29:54" (1/3) ... [2022-11-22 02:29:55,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3126747e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:29:55, skipping insertion in model container [2022-11-22 02:29:55,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:54" (2/3) ... [2022-11-22 02:29:55,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3126747e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:29:55, skipping insertion in model container [2022-11-22 02:29:55,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:29:55" (3/3) ... [2022-11-22 02:29:55,958 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-22 02:29:55,971 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:29:55,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:29:55,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 02:29:55,982 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:29:56,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:29:56,101 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:29:56,117 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 310 flow [2022-11-22 02:29:56,120 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 310 flow [2022-11-22 02:29:56,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-11-22 02:29:56,196 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-11-22 02:29:56,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:29:56,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-22 02:29:56,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 4436 [2022-11-22 02:30:02,758 INFO L134 LiptonReduction]: Checked pairs total: 16885 [2022-11-22 02:30:02,759 INFO L136 LiptonReduction]: Total number of compositions: 120 [2022-11-22 02:30:02,767 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-22 02:30:03,388 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13438 states, 13358 states have (on average 4.4234166791435845) internal successors, (59088), 13437 states have internal predecessors, (59088), 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) [2022-11-22 02:30:03,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:30:03,415 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;@72717198, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:30:03,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-22 02:30:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 13438 states, 13358 states have (on average 4.4234166791435845) internal successors, (59088), 13437 states have internal predecessors, (59088), 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) [2022-11-22 02:30:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:30:03,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:03,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:30:03,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:30:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash 586084445, now seen corresponding path program 1 times [2022-11-22 02:30:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:03,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164362237] [2022-11-22 02:30:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:03,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:03,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164362237] [2022-11-22 02:30:03,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164362237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:03,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:03,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:30:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998137998] [2022-11-22 02:30:03,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:03,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:03,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:03,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:03,881 INFO L87 Difference]: Start difference. First operand has 13438 states, 13358 states have (on average 4.4234166791435845) internal successors, (59088), 13437 states have internal predecessors, (59088), 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) [2022-11-22 02:30:04,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:04,230 INFO L93 Difference]: Finished difference Result 6394 states and 22533 transitions. [2022-11-22 02:30:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:04,234 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 [2022-11-22 02:30:04,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:04,318 INFO L225 Difference]: With dead ends: 6394 [2022-11-22 02:30:04,319 INFO L226 Difference]: Without dead ends: 6394 [2022-11-22 02:30:04,320 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 [2022-11-22 02:30:04,327 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:04,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 14 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:30:04,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6394 states. [2022-11-22 02:30:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6394 to 6394. [2022-11-22 02:30:04,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6394 states, 6330 states have (on average 3.5597156398104266) internal successors, (22533), 6393 states have internal predecessors, (22533), 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) [2022-11-22 02:30:04,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6394 states to 6394 states and 22533 transitions. [2022-11-22 02:30:04,784 INFO L78 Accepts]: Start accepts. Automaton has 6394 states and 22533 transitions. Word has length 5 [2022-11-22 02:30:04,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:04,784 INFO L495 AbstractCegarLoop]: Abstraction has 6394 states and 22533 transitions. [2022-11-22 02:30:04,785 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) [2022-11-22 02:30:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6394 states and 22533 transitions. [2022-11-22 02:30:04,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:30:04,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:04,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:04,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:30:04,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:30:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2085669855, now seen corresponding path program 1 times [2022-11-22 02:30:04,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:04,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828139713] [2022-11-22 02:30:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:04,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:05,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:05,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828139713] [2022-11-22 02:30:05,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828139713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:05,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:05,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620046812] [2022-11-22 02:30:05,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:05,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:30:05,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:05,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:30:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:30:05,018 INFO L87 Difference]: Start difference. First operand 6394 states and 22533 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) [2022-11-22 02:30:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:05,250 INFO L93 Difference]: Finished difference Result 4282 states and 15003 transitions. [2022-11-22 02:30:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:30:05,251 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 [2022-11-22 02:30:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:05,286 INFO L225 Difference]: With dead ends: 4282 [2022-11-22 02:30:05,286 INFO L226 Difference]: Without dead ends: 4282 [2022-11-22 02:30:05,288 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 [2022-11-22 02:30:05,289 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:05,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 20 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:30:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-11-22 02:30:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-11-22 02:30:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4268 states have (on average 3.5152296157450795) internal successors, (15003), 4281 states have internal predecessors, (15003), 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) [2022-11-22 02:30:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 15003 transitions. [2022-11-22 02:30:05,536 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 15003 transitions. Word has length 11 [2022-11-22 02:30:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:05,537 INFO L495 AbstractCegarLoop]: Abstraction has 4282 states and 15003 transitions. [2022-11-22 02:30:05,537 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) [2022-11-22 02:30:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 15003 transitions. [2022-11-22 02:30:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:30:05,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:05,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:30:05,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:30:05,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:05,553 INFO L85 PathProgramCache]: Analyzing trace with hash 231253612, now seen corresponding path program 1 times [2022-11-22 02:30:05,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:05,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478953575] [2022-11-22 02:30:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:05,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:05,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478953575] [2022-11-22 02:30:05,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478953575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:05,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:05,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:05,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660816622] [2022-11-22 02:30:05,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:05,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:30:05,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:30:05,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:30:05,656 INFO L87 Difference]: Start difference. First operand 4282 states and 15003 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) [2022-11-22 02:30:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:05,816 INFO L93 Difference]: Finished difference Result 1940 states and 6001 transitions. [2022-11-22 02:30:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:30:05,817 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 [2022-11-22 02:30:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:05,829 INFO L225 Difference]: With dead ends: 1940 [2022-11-22 02:30:05,830 INFO L226 Difference]: Without dead ends: 1940 [2022-11-22 02:30:05,830 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 [2022-11-22 02:30:05,831 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:05,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 19 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:30:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-11-22 02:30:05,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2022-11-22 02:30:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1930 states have (on average 3.109326424870466) internal successors, (6001), 1939 states have internal predecessors, (6001), 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) [2022-11-22 02:30:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 6001 transitions. [2022-11-22 02:30:05,896 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 6001 transitions. Word has length 12 [2022-11-22 02:30:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:05,896 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 6001 transitions. [2022-11-22 02:30:05,896 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) [2022-11-22 02:30:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 6001 transitions. [2022-11-22 02:30:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 02:30:05,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:05,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:05,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:30:05,901 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:30:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1537048272, now seen corresponding path program 1 times [2022-11-22 02:30:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102040688] [2022-11-22 02:30:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:06,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:06,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102040688] [2022-11-22 02:30:06,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102040688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:06,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:06,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:30:06,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746122107] [2022-11-22 02:30:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:06,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:30:06,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:30:06,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:30:06,157 INFO L87 Difference]: Start difference. First operand 1940 states and 6001 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:30:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:06,362 INFO L93 Difference]: Finished difference Result 1331 states and 4240 transitions. [2022-11-22 02:30:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:30:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-22 02:30:06,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:06,371 INFO L225 Difference]: With dead ends: 1331 [2022-11-22 02:30:06,371 INFO L226 Difference]: Without dead ends: 1331 [2022-11-22 02:30:06,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:30:06,372 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 66 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:06,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 24 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:30:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-11-22 02:30:06,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1331. [2022-11-22 02:30:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1327 states have (on average 3.19517709118312) internal successors, (4240), 1330 states have internal predecessors, (4240), 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) [2022-11-22 02:30:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 4240 transitions. [2022-11-22 02:30:06,414 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 4240 transitions. Word has length 19 [2022-11-22 02:30:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:06,415 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 4240 transitions. [2022-11-22 02:30:06,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 02:30:06,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 4240 transitions. [2022-11-22 02:30:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 02:30:06,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:06,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:06,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:30:06,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:30:06,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:06,420 INFO L85 PathProgramCache]: Analyzing trace with hash 603652722, now seen corresponding path program 1 times [2022-11-22 02:30:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:06,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789787973] [2022-11-22 02:30:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:06,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:06,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:06,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789787973] [2022-11-22 02:30:06,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789787973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:06,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:06,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:30:06,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136926375] [2022-11-22 02:30:06,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:30:06,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:06,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:30:06,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:30:06,682 INFO L87 Difference]: Start difference. First operand 1331 states and 4240 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:06,865 INFO L93 Difference]: Finished difference Result 1261 states and 4116 transitions. [2022-11-22 02:30:06,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:30:06,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-22 02:30:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:06,866 INFO L225 Difference]: With dead ends: 1261 [2022-11-22 02:30:06,867 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:30:06,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:30:06,868 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 124 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:06,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 20 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:30:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:30:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:30:06,869 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) [2022-11-22 02:30:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:30:06,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-11-22 02:30:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:06,870 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:30:06,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:30:06,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:30:06,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-22 02:30:06,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-22 02:30:06,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-22 02:30:06,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-22 02:30:06,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-22 02:30:06,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-22 02:30:06,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-22 02:30:06,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-22 02:30:06,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-22 02:30:06,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-22 02:30:06,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-22 02:30:06,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-22 02:30:06,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-22 02:30:06,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-22 02:30:06,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-22 02:30:06,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-22 02:30:06,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-22 02:30:06,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-22 02:30:06,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-22 02:30:06,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-22 02:30:06,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:30:06,882 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 02:30:06,887 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:30:06,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:30:06,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:30:06 BasicIcfg [2022-11-22 02:30:06,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:30:06,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:30:06,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:30:06,892 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:30:06,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:29:55" (3/4) ... [2022-11-22 02:30:06,895 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:30:06,900 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-22 02:30:06,900 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-22 02:30:06,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-22 02:30:06,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-22 02:30:06,907 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-22 02:30:06,907 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 02:30:06,907 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:30:06,908 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:30:06,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:30:06,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:30:06,955 INFO L158 Benchmark]: Toolchain (without parser) took 12819.21ms. Allocated memory was 138.4MB in the beginning and 302.0MB in the end (delta: 163.6MB). Free memory was 71.0MB in the beginning and 158.0MB in the end (delta: -87.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,955 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:06,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.07ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 70.8MB in the beginning and 136.6MB in the end (delta: -65.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.24ms. Allocated memory is still 186.6MB. Free memory was 136.6MB in the beginning and 134.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,956 INFO L158 Benchmark]: Boogie Preprocessor took 36.85ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,956 INFO L158 Benchmark]: RCFGBuilder took 927.49ms. Allocated memory is still 186.6MB. Free memory was 132.1MB in the beginning and 123.3MB in the end (delta: 8.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,957 INFO L158 Benchmark]: TraceAbstraction took 10947.56ms. Allocated memory was 186.6MB in the beginning and 302.0MB in the end (delta: 115.3MB). Free memory was 123.3MB in the beginning and 161.1MB in the end (delta: -37.8MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,957 INFO L158 Benchmark]: Witness Printer took 62.85ms. Allocated memory is still 302.0MB. Free memory was 161.1MB in the beginning and 158.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:06,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.07ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 70.8MB in the beginning and 136.6MB in the end (delta: -65.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.24ms. Allocated memory is still 186.6MB. Free memory was 136.6MB in the beginning and 134.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.85ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 927.49ms. Allocated memory is still 186.6MB. Free memory was 132.1MB in the beginning and 123.3MB in the end (delta: 8.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10947.56ms. Allocated memory was 186.6MB in the beginning and 302.0MB in the end (delta: 115.3MB). Free memory was 123.3MB in the beginning and 161.1MB in the end (delta: -37.8MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 62.85ms. Allocated memory is still 302.0MB. Free memory was 161.1MB in the beginning and 158.0MB 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: 6.6s, 156 PlacesBefore, 54 PlacesAfterwards, 145 TransitionsBefore, 42 TransitionsAfterwards, 4436 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 120 TotalNumberOfCompositions, 16885 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5468, independent: 5096, independent conditional: 0, independent unconditional: 5096, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2997, independent: 2909, independent conditional: 0, independent unconditional: 2909, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2997, independent: 2826, independent conditional: 0, independent unconditional: 2826, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 171, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 803, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5468, independent: 2187, independent conditional: 0, independent unconditional: 2187, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 2997, unknown conditional: 0, unknown unconditional: 2997] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, 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: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 190 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 288 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 42 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13438occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:30:06,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fae7668-044b-49e9-8245-4748f4439e91/bin/utaipan-g80aRyZoba/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