./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c --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_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/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_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/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_44bb338c-7e57-478d-a9cc-715fea41f2e3/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 7b0a21004c99a1cc1588d43a2481960a2ce9f2cdf68e9a363306433e7d24bd30 --- 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 01:49:13,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:49:13,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:49:13,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:49:13,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:49:13,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:49:13,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:49:13,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:49:13,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:49:13,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:49:13,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:49:13,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:49:13,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:49:13,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:49:13,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:49:13,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:49:13,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:49:13,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:49:13,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:49:13,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:49:13,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:49:13,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:49:13,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:49:13,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:49:13,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:49:13,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:49:13,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:49:13,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:49:13,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:49:13,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:49:13,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:49:13,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:49:13,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:49:13,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:49:13,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:49:13,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:49:13,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:49:13,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:49:13,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:49:13,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:49:13,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:49:13,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:49:13,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:49:13,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:49:13,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:49:13,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:49:13,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:49:13,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:49:13,397 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:49:13,397 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:49:13,397 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:49:13,398 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:49:13,398 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:49:13,398 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:49:13,398 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:49:13,399 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:49:13,399 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:49:13,399 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:49:13,399 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:49:13,400 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:49:13,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:49:13,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:49:13,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:49:13,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:49:13,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:49:13,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:49:13,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:49:13,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:49:13,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:49:13,402 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:49:13,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:49:13,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:49:13,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:49:13,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:49:13,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:49:13,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:49:13,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:13,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:49:13,404 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:49:13,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:49:13,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:49:13,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:49:13,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:49:13,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:49:13,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:49:13,406 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_44bb338c-7e57-478d-a9cc-715fea41f2e3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b0a21004c99a1cc1588d43a2481960a2ce9f2cdf68e9a363306433e7d24bd30 [2022-11-22 01:49:13,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:49:13,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:49:13,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:49:13,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:49:13,694 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:49:13,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2022-11-22 01:49:16,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:49:17,015 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:49:17,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2022-11-22 01:49:17,024 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/data/a2c6cb803/4ad24e21790c4dd3bc9841b22fc83b9a/FLAG2e651e198 [2022-11-22 01:49:17,047 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/data/a2c6cb803/4ad24e21790c4dd3bc9841b22fc83b9a [2022-11-22 01:49:17,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:49:17,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:49:17,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:17,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:49:17,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:49:17,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335bab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17, skipping insertion in model container [2022-11-22 01:49:17,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:49:17,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:49:17,250 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_44bb338c-7e57-478d-a9cc-715fea41f2e3/sv-benchmarks/c/systemc/token_ring.01.cil-1.c[671,684] [2022-11-22 01:49:17,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:17,317 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:49:17,326 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_44bb338c-7e57-478d-a9cc-715fea41f2e3/sv-benchmarks/c/systemc/token_ring.01.cil-1.c[671,684] [2022-11-22 01:49:17,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:17,364 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:49:17,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17 WrapperNode [2022-11-22 01:49:17,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:17,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:17,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:49:17,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:49:17,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,407 INFO L138 Inliner]: procedures = 30, calls = 34, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 219 [2022-11-22 01:49:17,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:17,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:49:17,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:49:17,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:49:17,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,432 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:49:17,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:49:17,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:49:17,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:49:17,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (1/1) ... [2022-11-22 01:49:17,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:17,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:49:17,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:49:17,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:49:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:49:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-22 01:49:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-22 01:49:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-22 01:49:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-22 01:49:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-22 01:49:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-22 01:49:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-22 01:49:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-22 01:49:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-22 01:49:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-22 01:49:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:49:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-22 01:49:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-22 01:49:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:49:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:49:17,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:49:17,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:49:18,081 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:49:18,279 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:49:18,279 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:49:18,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:18 BoogieIcfgContainer [2022-11-22 01:49:18,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:49:18,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:49:18,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:49:18,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:49:18,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:17" (1/3) ... [2022-11-22 01:49:18,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bad701a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:18, skipping insertion in model container [2022-11-22 01:49:18,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:17" (2/3) ... [2022-11-22 01:49:18,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bad701a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:18, skipping insertion in model container [2022-11-22 01:49:18,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:18" (3/3) ... [2022-11-22 01:49:18,297 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-1.c [2022-11-22 01:49:18,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:49:18,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:49:18,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:49:18,423 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;@6cf26937, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:49:18,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:49:18,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 51 states have internal predecessors, (68), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-22 01:49:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 01:49:18,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:18,441 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, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:18,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1056238255, now seen corresponding path program 1 times [2022-11-22 01:49:18,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:18,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287296927] [2022-11-22 01:49:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:18,809 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 01:49:18,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:18,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287296927] [2022-11-22 01:49:18,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287296927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:18,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:18,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:49:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829127388] [2022-11-22 01:49:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:18,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:49:18,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:49:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:49:18,849 INFO L87 Difference]: Start difference. First operand has 72 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 51 states have internal predecessors, (68), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:49:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:19,233 INFO L93 Difference]: Finished difference Result 199 states and 275 transitions. [2022-11-22 01:49:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:49:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2022-11-22 01:49:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:19,247 INFO L225 Difference]: With dead ends: 199 [2022-11-22 01:49:19,247 INFO L226 Difference]: Without dead ends: 128 [2022-11-22 01:49:19,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:49:19,254 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 158 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:19,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 214 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:49:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-22 01:49:19,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2022-11-22 01:49:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 88 states have internal predecessors, (113), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-22 01:49:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2022-11-22 01:49:19,306 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 32 [2022-11-22 01:49:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:19,307 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2022-11-22 01:49:19,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:49:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2022-11-22 01:49:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:49:19,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:19,309 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:19,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:49:19,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:19,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash 673279209, now seen corresponding path program 1 times [2022-11-22 01:49:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:19,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537295086] [2022-11-22 01:49:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:19,565 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 01:49:19,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:19,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537295086] [2022-11-22 01:49:19,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537295086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:19,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:19,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:49:19,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781581188] [2022-11-22 01:49:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:19,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:49:19,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:19,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:49:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:49:19,569 INFO L87 Difference]: Start difference. First operand 125 states and 165 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:49:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:19,961 INFO L93 Difference]: Finished difference Result 323 states and 424 transitions. [2022-11-22 01:49:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:49:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-11-22 01:49:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:19,972 INFO L225 Difference]: With dead ends: 323 [2022-11-22 01:49:19,973 INFO L226 Difference]: Without dead ends: 204 [2022-11-22 01:49:19,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:49:19,984 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 197 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:19,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 253 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:49:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-22 01:49:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 188. [2022-11-22 01:49:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 132 states have internal predecessors, (170), 37 states have call successors, (37), 20 states have call predecessors, (37), 20 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2022-11-22 01:49:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 244 transitions. [2022-11-22 01:49:20,033 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 244 transitions. Word has length 33 [2022-11-22 01:49:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:20,034 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 244 transitions. [2022-11-22 01:49:20,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:49:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 244 transitions. [2022-11-22 01:49:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:49:20,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:20,036 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:20,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:49:20,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1175444851, now seen corresponding path program 1 times [2022-11-22 01:49:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:20,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190248073] [2022-11-22 01:49:20,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:20,080 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 01:49:20,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190248073] [2022-11-22 01:49:20,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190248073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:20,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:20,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:20,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794351778] [2022-11-22 01:49:20,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:20,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:20,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:20,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:20,083 INFO L87 Difference]: Start difference. First operand 188 states and 244 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 01:49:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:20,164 INFO L93 Difference]: Finished difference Result 526 states and 684 transitions. [2022-11-22 01:49:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2022-11-22 01:49:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:20,167 INFO L225 Difference]: With dead ends: 526 [2022-11-22 01:49:20,167 INFO L226 Difference]: Without dead ends: 343 [2022-11-22 01:49:20,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:49:20,169 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 64 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:20,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 163 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:49:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-22 01:49:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 338. [2022-11-22 01:49:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 231 states have (on average 1.2857142857142858) internal successors, (297), 237 states have internal predecessors, (297), 65 states have call successors, (65), 38 states have call predecessors, (65), 38 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-22 01:49:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 427 transitions. [2022-11-22 01:49:20,217 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 427 transitions. Word has length 34 [2022-11-22 01:49:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:20,217 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 427 transitions. [2022-11-22 01:49:20,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 01:49:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 427 transitions. [2022-11-22 01:49:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-22 01:49:20,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:20,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:49:20,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:49:20,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1825878833, now seen corresponding path program 1 times [2022-11-22 01:49:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:20,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581569013] [2022-11-22 01:49:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:49:20,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:20,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581569013] [2022-11-22 01:49:20,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581569013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:20,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:20,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:20,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008954690] [2022-11-22 01:49:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:20,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:20,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:20,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:20,305 INFO L87 Difference]: Start difference. First operand 338 states and 427 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:49:20,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:20,385 INFO L93 Difference]: Finished difference Result 621 states and 792 transitions. [2022-11-22 01:49:20,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:20,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-22 01:49:20,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:20,388 INFO L225 Difference]: With dead ends: 621 [2022-11-22 01:49:20,388 INFO L226 Difference]: Without dead ends: 439 [2022-11-22 01:49:20,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:49:20,390 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 38 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:20,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 193 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:49:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-22 01:49:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 364. [2022-11-22 01:49:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 251 states have (on average 1.2868525896414342) internal successors, (323), 257 states have internal predecessors, (323), 68 states have call successors, (68), 41 states have call predecessors, (68), 41 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-22 01:49:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 459 transitions. [2022-11-22 01:49:20,439 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 459 transitions. Word has length 46 [2022-11-22 01:49:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:20,440 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 459 transitions. [2022-11-22 01:49:20,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:49:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 459 transitions. [2022-11-22 01:49:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-22 01:49:20,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:20,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-22 01:49:20,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:49:20,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1909339266, now seen corresponding path program 1 times [2022-11-22 01:49:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:20,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870757023] [2022-11-22 01:49:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:49:20,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:20,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870757023] [2022-11-22 01:49:20,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870757023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:20,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:20,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:49:20,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932796640] [2022-11-22 01:49:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:20,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:49:20,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:20,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:49:20,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:49:20,759 INFO L87 Difference]: Start difference. First operand 364 states and 459 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-22 01:49:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:21,063 INFO L93 Difference]: Finished difference Result 896 states and 1129 transitions. [2022-11-22 01:49:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:49:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2022-11-22 01:49:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:21,071 INFO L225 Difference]: With dead ends: 896 [2022-11-22 01:49:21,072 INFO L226 Difference]: Without dead ends: 538 [2022-11-22 01:49:21,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:49:21,077 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 173 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:21,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 191 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:49:21,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-22 01:49:21,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 512. [2022-11-22 01:49:21,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 353 states have (on average 1.2662889518413598) internal successors, (447), 360 states have internal predecessors, (447), 96 states have call successors, (96), 59 states have call predecessors, (96), 59 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2022-11-22 01:49:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 639 transitions. [2022-11-22 01:49:21,169 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 639 transitions. Word has length 57 [2022-11-22 01:49:21,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:21,170 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 639 transitions. [2022-11-22 01:49:21,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-22 01:49:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 639 transitions. [2022-11-22 01:49:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:49:21,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:21,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2022-11-22 01:49:21,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:49:21,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:21,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1088575261, now seen corresponding path program 1 times [2022-11-22 01:49:21,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:21,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540460947] [2022-11-22 01:49:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:21,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:49:21,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:21,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540460947] [2022-11-22 01:49:21,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540460947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:21,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:21,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:49:21,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879593169] [2022-11-22 01:49:21,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:21,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:21,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:49:21,255 INFO L87 Difference]: Start difference. First operand 512 states and 639 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:49:21,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:21,398 INFO L93 Difference]: Finished difference Result 916 states and 1151 transitions. [2022-11-22 01:49:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:21,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-22 01:49:21,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:21,403 INFO L225 Difference]: With dead ends: 916 [2022-11-22 01:49:21,404 INFO L226 Difference]: Without dead ends: 598 [2022-11-22 01:49:21,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:49:21,407 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 32 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:21,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 181 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:49:21,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-11-22 01:49:21,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 550. [2022-11-22 01:49:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 383 states have (on average 1.268929503916449) internal successors, (486), 390 states have internal predecessors, (486), 100 states have call successors, (100), 63 states have call predecessors, (100), 63 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-11-22 01:49:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 686 transitions. [2022-11-22 01:49:21,494 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 686 transitions. Word has length 58 [2022-11-22 01:49:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:21,496 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 686 transitions. [2022-11-22 01:49:21,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:49:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 686 transitions. [2022-11-22 01:49:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-22 01:49:21,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:21,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2022-11-22 01:49:21,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:49:21,498 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:21,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:21,499 INFO L85 PathProgramCache]: Analyzing trace with hash -101700591, now seen corresponding path program 1 times [2022-11-22 01:49:21,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:21,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221427712] [2022-11-22 01:49:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:49:21,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221427712] [2022-11-22 01:49:21,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221427712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:21,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:21,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:49:21,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891647017] [2022-11-22 01:49:21,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:21,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:49:21,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:21,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:49:21,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:49:21,593 INFO L87 Difference]: Start difference. First operand 550 states and 686 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:49:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:21,790 INFO L93 Difference]: Finished difference Result 939 states and 1198 transitions. [2022-11-22 01:49:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:49:21,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-22 01:49:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:21,795 INFO L225 Difference]: With dead ends: 939 [2022-11-22 01:49:21,795 INFO L226 Difference]: Without dead ends: 555 [2022-11-22 01:49:21,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:49:21,800 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 143 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:21,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 206 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:49:21,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-11-22 01:49:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 548. [2022-11-22 01:49:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 381 states have (on average 1.2283464566929134) internal successors, (468), 388 states have internal predecessors, (468), 100 states have call successors, (100), 63 states have call predecessors, (100), 63 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-11-22 01:49:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 668 transitions. [2022-11-22 01:49:21,887 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 668 transitions. Word has length 62 [2022-11-22 01:49:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:21,887 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 668 transitions. [2022-11-22 01:49:21,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:49:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 668 transitions. [2022-11-22 01:49:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-22 01:49:21,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:21,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:21,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:49:21,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:49:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:21,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1177624144, now seen corresponding path program 1 times [2022-11-22 01:49:21,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:21,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985189787] [2022-11-22 01:49:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:21,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:49:21,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:49:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:49:21,972 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:49:21,973 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:49:21,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:49:21,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:49:21,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:49:21,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:49:21,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:49:21,982 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:21,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:49:22,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:49:22 BoogieIcfgContainer [2022-11-22 01:49:22,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:49:22,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:49:22,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:49:22,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:49:22,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:18" (3/4) ... [2022-11-22 01:49:22,068 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:49:22,145 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:49:22,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:49:22,146 INFO L158 Benchmark]: Toolchain (without parser) took 5091.01ms. Allocated memory was 140.5MB in the beginning and 213.9MB in the end (delta: 73.4MB). Free memory was 100.0MB in the beginning and 137.2MB in the end (delta: -37.1MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,146 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 140.5MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:49:22,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.20ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 87.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 140.5MB. Free memory was 87.3MB in the beginning and 85.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,147 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 140.5MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,148 INFO L158 Benchmark]: RCFGBuilder took 845.36ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 83.6MB in the beginning and 134.2MB in the end (delta: -50.5MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,148 INFO L158 Benchmark]: TraceAbstraction took 3778.60ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.1MB in the beginning and 143.5MB in the end (delta: -10.3MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,149 INFO L158 Benchmark]: Witness Printer took 80.81ms. Allocated memory is still 213.9MB. Free memory was 143.5MB in the beginning and 137.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:49:22,150 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 140.5MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.20ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 87.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 140.5MB. Free memory was 87.3MB in the beginning and 85.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 140.5MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 845.36ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 83.6MB in the beginning and 134.2MB in the end (delta: -50.5MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3778.60ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.1MB in the beginning and 143.5MB in the end (delta: -10.3MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 80.81ms. Allocated memory is still 213.9MB. Free memory was 143.5MB in the beginning and 137.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - CounterExampleResult [Line: 107]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int m_pc = 0; [L25] int t1_pc = 0; [L26] int m_st ; [L27] int t1_st ; [L28] int m_i ; [L29] int t1_i ; [L30] int M_E = 2; [L31] int T1_E = 2; [L32] int E_M = 2; [L33] int E_1 = 2; [L37] int token ; [L39] int local ; [L473] int __retres1 ; [L477] CALL init_model() [L388] m_i = 1 [L389] t1_i = 1 [L477] RET init_model() [L478] CALL start_simulation() [L414] int kernel_st ; [L415] int tmp ; [L416] int tmp___0 ; [L420] kernel_st = 0 VAL [E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L421] FCALL update_channels() VAL [E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L422] CALL init_threads() [L170] COND TRUE m_i == 1 [L171] m_st = 0 [L175] COND TRUE t1_i == 1 [L176] t1_st = 0 [L422] RET init_threads() [L423] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L259] COND FALSE !(M_E == 0) [L264] COND FALSE !(T1_E == 0) [L269] COND FALSE !(E_M == 0) [L274] COND FALSE !(E_1 == 0) [L423] RET fire_delta_events() VAL [E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] CALL activate_threads() VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L312] int tmp ; [L313] int tmp___0 ; [L317] CALL, EXPR is_master_triggered() [L121] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L124] COND FALSE !(m_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L134] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L136] return (__retres1); [L317] RET, EXPR is_master_triggered() [L317] tmp = is_master_triggered() [L319] COND FALSE !(\read(tmp)) [L325] CALL, EXPR is_transmit1_triggered() [L140] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L143] COND FALSE !(t1_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L153] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L155] return (__retres1); [L325] RET, EXPR is_transmit1_triggered() [L325] tmp___0 = is_transmit1_triggered() [L327] COND FALSE !(\read(tmp___0)) [L424] RET activate_threads() VAL [E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L287] COND FALSE !(M_E == 1) [L292] COND FALSE !(T1_E == 1) [L297] COND FALSE !(E_M == 1) [L302] COND FALSE !(E_1 == 1) [L425] RET reset_delta_events() VAL [E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L428] COND TRUE 1 [L431] kernel_st = 1 [L432] CALL eval() [L206] int tmp ; VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L210] COND TRUE 1 VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L213] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L185] int __retres1 ; [L188] COND TRUE m_st == 0 [L189] __retres1 = 1 [L201] return (__retres1); [L213] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L213] tmp = exists_runnable_thread() [L215] COND TRUE \read(tmp) VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, token=0] [L220] COND TRUE m_st == 0 [L221] int tmp_ndt_1; [L222] tmp_ndt_1 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0, token=0] [L234] COND TRUE t1_st == 0 [L235] int tmp_ndt_2; [L236] tmp_ndt_2 = __VERIFIER_nondet_int() [L237] COND TRUE \read(tmp_ndt_2) [L239] t1_st = 1 [L240] CALL transmit1() [L88] COND TRUE t1_pc == 0 VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L99] COND TRUE 1 [L101] t1_pc = 1 [L102] t1_st = 2 [L240] RET transmit1() [L210] COND TRUE 1 VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L213] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L185] int __retres1 ; [L188] COND TRUE m_st == 0 [L189] __retres1 = 1 [L201] return (__retres1); [L213] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L213] tmp = exists_runnable_thread() [L215] COND TRUE \read(tmp) VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L220] COND TRUE m_st == 0 [L221] int tmp_ndt_1; [L222] tmp_ndt_1 = __VERIFIER_nondet_int() [L223] COND TRUE \read(tmp_ndt_1) [L225] m_st = 1 [L226] CALL master() [L44] COND TRUE m_pc == 0 VAL [E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L55] COND TRUE 1 [L58] token = __VERIFIER_nondet_int() [L59] local = token [L60] E_1 = 1 VAL [E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L61] CALL immediate_notify() VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L341] CALL activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L312] int tmp ; [L313] int tmp___0 ; [L317] CALL, EXPR is_master_triggered() [L121] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L124] COND FALSE !(m_pc == 1) VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L134] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, __retres1=0, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L136] return (__retres1); [L317] RET, EXPR is_master_triggered() [L317] tmp = is_master_triggered() [L319] COND FALSE !(\read(tmp)) [L325] CALL, EXPR is_transmit1_triggered() [L140] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L143] COND TRUE t1_pc == 1 VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L144] COND TRUE E_1 == 1 [L145] __retres1 = 1 VAL [\old(m_st)=1, \old(t1_st)=2, __retres1=1, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=2147483647] [L155] return (__retres1); [L325] RET, EXPR is_transmit1_triggered() [L325] tmp___0 = is_transmit1_triggered() [L327] COND TRUE \read(tmp___0) [L328] t1_st = 0 [L341] RET activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=2147483647] [L61] RET immediate_notify() VAL [E_1=1, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=2147483647] [L62] E_1 = 2 [L63] m_pc = 1 [L64] m_st = 2 VAL [E_1=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=2147483647] [L226] RET master() [L234] COND TRUE t1_st == 0 [L235] int tmp_ndt_2; [L236] tmp_ndt_2 = __VERIFIER_nondet_int() [L237] COND TRUE \read(tmp_ndt_2) [L239] t1_st = 1 [L240] CALL transmit1() [L88] COND FALSE !(t1_pc == 0) VAL [E_1=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=2147483647] [L91] COND TRUE t1_pc == 1 VAL [E_1=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=2147483647] [L107] token += 1 VAL [E_1=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=2147483647] - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 822 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 805 mSDsluCounter, 1401 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 645 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 667 IncrementalHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 756 mSDtfsCounter, 667 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=550occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 180 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 64/64 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:49:22,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bb338c-7e57-478d-a9cc-715fea41f2e3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)