./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:23:25,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:23:25,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:23:25,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:23:25,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:23:25,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:23:25,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:23:25,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:23:25,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:23:25,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:23:25,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:23:25,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:23:25,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:23:25,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:23:25,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:23:25,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:23:25,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:23:25,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:23:25,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:23:25,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:23:25,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:23:25,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:23:25,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:23:25,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:23:25,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:23:25,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:23:25,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:23:25,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:23:25,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:23:25,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:23:25,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:23:25,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:23:25,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:23:25,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:23:25,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:23:25,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:23:25,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:23:25,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:23:25,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:23:25,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:23:25,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:23:25,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:23:25,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:23:25,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:23:25,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:23:25,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:23:25,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:23:25,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:23:25,491 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:23:25,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:23:25,492 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:23:25,492 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:23:25,493 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:23:25,493 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:23:25,494 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:23:25,494 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:23:25,494 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:23:25,494 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:23:25,494 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:23:25,495 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:23:25,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:23:25,496 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:23:25,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:23:25,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:23:25,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:23:25,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:23:25,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:23:25,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:23:25,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:23:25,497 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:23:25,497 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:23:25,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:23:25,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:23:25,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:23:25,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:23:25,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:23:25,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:25,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:23:25,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:23:25,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:23:25,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:23:25,500 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:23:25,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:23:25,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:23:25,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:23:25,500 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_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b [2022-11-19 08:23:25,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:23:25,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:23:25,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:23:25,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:23:25,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:23:25,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-11-19 08:23:25,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/data/b0b39fffe/971fc7a75cc84b1c86a60603ef33c89c/FLAGf8d47093b [2022-11-19 08:23:26,677 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:23:26,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-11-19 08:23:26,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/data/b0b39fffe/971fc7a75cc84b1c86a60603ef33c89c/FLAGf8d47093b [2022-11-19 08:23:26,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/data/b0b39fffe/971fc7a75cc84b1c86a60603ef33c89c [2022-11-19 08:23:26,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:23:26,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:23:26,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:26,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:23:26,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:23:26,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:26" (1/1) ... [2022-11-19 08:23:26,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edeba26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:26, skipping insertion in model container [2022-11-19 08:23:26,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:26" (1/1) ... [2022-11-19 08:23:26,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:23:27,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:23:27,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:27,384 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:23:27,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:27,442 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:23:27,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27 WrapperNode [2022-11-19 08:23:27,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:27,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:27,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:23:27,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:23:27,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,496 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-19 08:23:27,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:27,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:23:27,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:23:27,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:23:27,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:23:27,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:23:27,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:23:27,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:23:27,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (1/1) ... [2022-11-19 08:23:27,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:27,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:23:27,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:23:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:23:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:23:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:23:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:23:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:23:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:23:27,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:23:27,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:23:28,068 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:23:28,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:23:28,185 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:23:28,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:28 BoogieIcfgContainer [2022-11-19 08:23:28,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:23:28,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:23:28,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:23:28,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:23:28,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:23:26" (1/3) ... [2022-11-19 08:23:28,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3629beba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:28, skipping insertion in model container [2022-11-19 08:23:28,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:27" (2/3) ... [2022-11-19 08:23:28,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3629beba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:28, skipping insertion in model container [2022-11-19 08:23:28,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:28" (3/3) ... [2022-11-19 08:23:28,199 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca-1.i [2022-11-19 08:23:28,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:23:28,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 08:23:28,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:23:28,286 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;@4f3375a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:23:28,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 08:23:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:23:28,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:28,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:23:28,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 3458, now seen corresponding path program 1 times [2022-11-19 08:23:28,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:28,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170058190] [2022-11-19 08:23:28,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:28,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:28,443 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:28,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458737602] [2022-11-19 08:23:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:28,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:28,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:23:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:29,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:23:29,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:36,205 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 31 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:36,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:36,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170058190] [2022-11-19 08:23:36,210 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:36,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458737602] [2022-11-19 08:23:36,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458737602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:36,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:36,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:23:36,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673833707] [2022-11-19 08:23:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:36,289 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:36,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:36,546 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-19 08:23:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-19 08:23:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:36,559 INFO L225 Difference]: With dead ends: 26 [2022-11-19 08:23:36,559 INFO L226 Difference]: Without dead ends: 16 [2022-11-19 08:23:36,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:36,570 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:36,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 11 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:36,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-19 08:23:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-19 08:23:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-19 08:23:36,612 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2022-11-19 08:23:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:36,613 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-19 08:23:36,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-19 08:23:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:23:36,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:36,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:23:36,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:36,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 08:23:36,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:36,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:36,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1099886137, now seen corresponding path program 1 times [2022-11-19 08:23:36,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:36,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144728779] [2022-11-19 08:23:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:36,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:36,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:36,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406454817] [2022-11-19 08:23:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:36,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:36,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:36,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:36,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:23:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:36,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:23:36,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:36,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:36,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:36,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144728779] [2022-11-19 08:23:36,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:36,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406454817] [2022-11-19 08:23:36,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406454817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:36,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:36,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:36,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783989030] [2022-11-19 08:23:36,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:36,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:36,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:36,981 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:37,065 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-19 08:23:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 08:23:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:37,067 INFO L225 Difference]: With dead ends: 28 [2022-11-19 08:23:37,067 INFO L226 Difference]: Without dead ends: 27 [2022-11-19 08:23:37,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:37,069 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:37,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-19 08:23:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2022-11-19 08:23:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-19 08:23:37,077 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 6 [2022-11-19 08:23:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:37,078 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-19 08:23:37,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-19 08:23:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:23:37,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:37,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:37,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:37,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:37,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:37,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:37,286 INFO L85 PathProgramCache]: Analyzing trace with hash 263268190, now seen corresponding path program 1 times [2022-11-19 08:23:37,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:37,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789567047] [2022-11-19 08:23:37,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:37,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:37,309 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:37,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997864276] [2022-11-19 08:23:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:37,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:37,315 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:37,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:23:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:37,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:23:37,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:37,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:37,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:37,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789567047] [2022-11-19 08:23:37,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:37,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997864276] [2022-11-19 08:23:37,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997864276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:37,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:37,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:37,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816219260] [2022-11-19 08:23:37,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:37,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:37,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:37,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:37,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:37,409 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:37,496 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-19 08:23:37,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:23:37,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 08:23:37,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:37,497 INFO L225 Difference]: With dead ends: 18 [2022-11-19 08:23:37,497 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 08:23:37,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:37,499 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 08:23:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-19 08:23:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-19 08:23:37,505 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2022-11-19 08:23:37,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:37,505 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-19 08:23:37,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-19 08:23:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:23:37,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:37,506 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:37,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:37,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:37,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash -402336738, now seen corresponding path program 1 times [2022-11-19 08:23:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:37,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478365296] [2022-11-19 08:23:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:37,734 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:37,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500814528] [2022-11-19 08:23:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:37,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:37,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:37,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:23:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:37,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:23:37,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:37,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:37,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:37,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478365296] [2022-11-19 08:23:37,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:37,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500814528] [2022-11-19 08:23:37,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500814528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:37,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878173029] [2022-11-19 08:23:37,948 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 08:23:37,948 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:37,953 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:37,960 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:37,961 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:38,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:23:38,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:23:38,771 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-11-19 08:23:38,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-11-19 08:23:39,125 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:39,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 08:23:39,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:39,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:39,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-19 08:23:39,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:39,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:39,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:44,684 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '277#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr2~0#1.base|) (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~fac~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.base|) (<= |ULTIMATE.start_main_#t~post6#1| 2147483647) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#NULL.offset|) (< 2147483646 |ULTIMATE.start_main_#t~post6#1|) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.offset|) (<= 0 |ULTIMATE.start_main_~arr2~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~arr2~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 08:23:44,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:44,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:23:44,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-19 08:23:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589808643] [2022-11-19 08:23:44,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:23:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:23:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:23:44,687 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:45,202 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2022-11-19 08:23:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:23:45,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:23:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:45,205 INFO L225 Difference]: With dead ends: 56 [2022-11-19 08:23:45,205 INFO L226 Difference]: Without dead ends: 55 [2022-11-19 08:23:45,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:23:45,207 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 44 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:45,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 65 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:23:45,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-19 08:23:45,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 26. [2022-11-19 08:23:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-19 08:23:45,221 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 9 [2022-11-19 08:23:45,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:45,222 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-19 08:23:45,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-19 08:23:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:23:45,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:45,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:45,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:45,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:45,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash -397380777, now seen corresponding path program 1 times [2022-11-19 08:23:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:45,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956068140] [2022-11-19 08:23:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:45,442 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:45,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327945566] [2022-11-19 08:23:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:45,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:45,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:45,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:45,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:23:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:45,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:23:45,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:45,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:45,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:45,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956068140] [2022-11-19 08:23:45,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:45,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327945566] [2022-11-19 08:23:45,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327945566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:45,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:45,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:45,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384172450] [2022-11-19 08:23:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:45,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:45,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:45,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:45,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:45,535 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:45,637 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-11-19 08:23:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:23:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:45,639 INFO L225 Difference]: With dead ends: 33 [2022-11-19 08:23:45,639 INFO L226 Difference]: Without dead ends: 32 [2022-11-19 08:23:45,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:45,640 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:45,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-19 08:23:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-11-19 08:23:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-19 08:23:45,662 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 9 [2022-11-19 08:23:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:45,662 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-19 08:23:45,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-19 08:23:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:23:45,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:45,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:45,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:45,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:45,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash 566097892, now seen corresponding path program 1 times [2022-11-19 08:23:45,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:45,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296135944] [2022-11-19 08:23:45,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:45,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:45,884 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:45,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010906888] [2022-11-19 08:23:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:45,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:45,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:45,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:45,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:23:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:45,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:23:45,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:45,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:45,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:45,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296135944] [2022-11-19 08:23:45,996 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:45,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010906888] [2022-11-19 08:23:45,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010906888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:45,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:45,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:45,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652009415] [2022-11-19 08:23:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:46,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:46,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:46,001 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:46,095 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-19 08:23:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:23:46,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:23:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:46,100 INFO L225 Difference]: With dead ends: 30 [2022-11-19 08:23:46,100 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 08:23:46,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:46,101 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:46,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 08:23:46,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 08:23:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-19 08:23:46,114 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2022-11-19 08:23:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:46,114 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-19 08:23:46,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-19 08:23:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:23:46,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:46,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:46,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:46,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:23:46,322 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1600384070, now seen corresponding path program 1 times [2022-11-19 08:23:46,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:46,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518029980] [2022-11-19 08:23:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:46,339 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:46,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067903500] [2022-11-19 08:23:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:46,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:46,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:46,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:23:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:46,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:23:46,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:46,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:46,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:46,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518029980] [2022-11-19 08:23:46,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:46,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067903500] [2022-11-19 08:23:46,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067903500] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:46,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1620366120] [2022-11-19 08:23:46,541 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 08:23:46,542 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:46,542 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:46,543 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:46,543 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:46,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:23:46,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:23:46,828 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:46,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 08:23:46,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 08:23:46,938 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:53,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1620366120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:53,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:23:53,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 13 [2022-11-19 08:23:53,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647575559] [2022-11-19 08:23:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:53,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:53,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:53,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:23:53,834 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:54,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:54,219 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-19 08:23:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:54,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 08:23:54,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:54,221 INFO L225 Difference]: With dead ends: 39 [2022-11-19 08:23:54,221 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 08:23:54,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:23:54,223 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:54,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:23:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 08:23:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 08:23:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-19 08:23:54,235 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 14 [2022-11-19 08:23:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:54,236 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-19 08:23:54,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:54,236 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-19 08:23:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:23:54,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:54,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:54,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:54,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:54,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:23:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:54,443 INFO L85 PathProgramCache]: Analyzing trace with hash -963670255, now seen corresponding path program 1 times [2022-11-19 08:23:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:54,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080785359] [2022-11-19 08:23:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:54,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:54,459 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:23:54,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071405600] [2022-11-19 08:23:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:54,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:54,462 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:54,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 08:23:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:54,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:23:54,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:54,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:54,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:54,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080785359] [2022-11-19 08:23:54,654 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:23:54,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071405600] [2022-11-19 08:23:54,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071405600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104591209] [2022-11-19 08:23:54,662 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-19 08:23:54,662 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:54,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:54,663 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:54,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:54,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:23:54,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:23:55,022 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-11-19 08:23:55,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-11-19 08:23:55,281 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:55,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 08:23:55,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:55,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2022-11-19 08:23:55,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:55,759 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:23:55,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:23:55,859 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:23:55,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:23:55,956 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:23:55,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:23:56,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:23:56,064 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:04,711 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '883#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr2~0#1.base|) (< |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|)) (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.base|) (not (<= |ULTIMATE.start_main_#t~post8#1| 2147483646)) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.base|) (= |ULTIMATE.start_main_#t~post8#1| |ULTIMATE.start_main_~j~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~arr2~0#1.base|) (+ |ULTIMATE.start_main_~arr2~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~arr~0#1.base|) (+ |ULTIMATE.start_main_~arr~0#1.offset| (* (ite (and (< |ULTIMATE.start_main_~i~0#1| 0) (not (= (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) 0))) (ite (< |ULTIMATE.start_main_~length~0#1| 0) (+ (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) |ULTIMATE.start_main_~length~0#1|) (+ (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) (* (- 1) |ULTIMATE.start_main_~length~0#1|))) (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|)) 4)))) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |ULTIMATE.start_main_~arr2~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~arr2~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 08:24:04,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:24:04,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:24:04,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-19 08:24:04,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9979961] [2022-11-19 08:24:04,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-19 08:24:04,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:24:04,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:24:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:24:04,713 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:05,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:05,002 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-11-19 08:24:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:24:05,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 08:24:05,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:05,003 INFO L225 Difference]: With dead ends: 46 [2022-11-19 08:24:05,003 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 08:24:05,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-19 08:24:05,004 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:05,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:24:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 08:24:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-11-19 08:24:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:05,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-19 08:24:05,021 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2022-11-19 08:24:05,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:05,022 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-19 08:24:05,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-19 08:24:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:24:05,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:05,023 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1] [2022-11-19 08:24:05,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:05,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:05,229 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:24:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -992103673, now seen corresponding path program 2 times [2022-11-19 08:24:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:05,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640722886] [2022-11-19 08:24:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:05,239 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:24:05,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375780689] [2022-11-19 08:24:05,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:24:05,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:05,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:05,241 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:05,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 08:24:05,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:24:05,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:24:05,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:24:05,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 08:24:05,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 08:24:05,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640722886] [2022-11-19 08:24:05,531 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:24:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375780689] [2022-11-19 08:24:05,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375780689] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:24:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1530169880] [2022-11-19 08:24:05,534 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 08:24:05,534 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:05,534 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:05,535 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:05,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:05,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:24:05,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:24:06,071 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-11-19 08:24:06,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-11-19 08:24:06,394 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:24:06,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 08:24:06,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:06,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:06,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-19 08:24:06,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:06,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:06,841 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:11,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1119#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr2~0#1.base|) (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~fac~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.base|) (<= |ULTIMATE.start_main_#t~post6#1| 2147483647) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#NULL.offset|) (< 2147483646 |ULTIMATE.start_main_#t~post6#1|) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.offset|) (<= 0 |ULTIMATE.start_main_~arr2~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~arr2~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 08:24:11,203 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:24:11,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:24:11,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-19 08:24:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270573137] [2022-11-19 08:24:11,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-19 08:24:11,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:24:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:11,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:24:11,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:24:11,220 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:11,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:11,299 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-19 08:24:11,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:24:11,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:24:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:11,301 INFO L225 Difference]: With dead ends: 44 [2022-11-19 08:24:11,301 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 08:24:11,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:24:11,302 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:11,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:24:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 08:24:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2022-11-19 08:24:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-19 08:24:11,313 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 18 [2022-11-19 08:24:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:11,313 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-19 08:24:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-19 08:24:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:24:11,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:11,314 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:11,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:11,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:11,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 08:24:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -327437600, now seen corresponding path program 2 times [2022-11-19 08:24:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:11,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638922100] [2022-11-19 08:24:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:11,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:24:11,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781207222] [2022-11-19 08:24:11,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:24:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:11,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:11,535 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:11,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 08:24:11,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:24:11,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:24:11,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:24:11,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:13,717 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~fac~0#1| Int) (|ULTIMATE.start_main_~length~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) .cse0) (<= .cse0 2147483647)))) is different from true [2022-11-19 08:24:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 4 not checked. [2022-11-19 08:24:13,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-19 08:24:13,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:13,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638922100] [2022-11-19 08:24:13,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:24:13,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781207222] [2022-11-19 08:24:13,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781207222] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:24:13,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1761564335] [2022-11-19 08:24:13,793 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-19 08:24:13,794 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:13,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:13,794 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:13,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:13,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 08:24:13,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 08:24:14,239 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-11-19 08:24:14,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-11-19 08:24:14,586 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:24:14,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 08:24:14,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:14,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:14,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-19 08:24:14,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:15,091 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:24:15,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:24:15,194 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:24:15,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:24:15,262 INFO L321 Elim1Store]: treesize reduction 132, result has 23.3 percent of original size [2022-11-19 08:24:15,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52 [2022-11-19 08:24:15,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 08:24:15,354 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:24,391 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1412#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr2~0#1.base|) (< |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|)) (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc5#1.base|) (not (<= |ULTIMATE.start_main_#t~post8#1| 2147483646)) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc4#1.base|) (= |ULTIMATE.start_main_#t~post8#1| |ULTIMATE.start_main_~j~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~arr2~0#1.base|) (+ |ULTIMATE.start_main_~arr2~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~arr~0#1.base|) (+ |ULTIMATE.start_main_~arr~0#1.offset| (* (ite (and (< |ULTIMATE.start_main_~i~0#1| 0) (not (= (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) 0))) (ite (< |ULTIMATE.start_main_~length~0#1| 0) (+ (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) |ULTIMATE.start_main_~length~0#1|) (+ (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) (* (- 1) |ULTIMATE.start_main_~length~0#1|))) (mod |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|)) 4)))) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |ULTIMATE.start_main_~arr2~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~arr2~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-19 08:24:24,391 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:24:24,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:24:24,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2022-11-19 08:24:24,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562607458] [2022-11-19 08:24:24,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-19 08:24:24,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:24:24,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:24,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:24:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=139, Unknown=1, NotChecked=24, Total=210 [2022-11-19 08:24:24,393 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:28,333 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-19 08:24:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:24:28,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 08:24:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:28,334 INFO L225 Difference]: With dead ends: 33 [2022-11-19 08:24:28,335 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:24:28,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=50, Invalid=163, Unknown=1, NotChecked=26, Total=240 [2022-11-19 08:24:28,336 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:28,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2022-11-19 08:24:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:24:28,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:24:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:24:28,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-19 08:24:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:28,338 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:24:28,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:24:28,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:24:28,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-19 08:24:28,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-19 08:24:28,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-19 08:24:28,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-19 08:24:28,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-19 08:24:28,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-19 08:24:28,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-19 08:24:28,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-19 08:24:28,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:28,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:24:28,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:24:36,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2022-11-19 08:24:36,859 INFO L895 garLoopResultBuilder]: At program point L527(lines 512 528) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (or (= 1 |ULTIMATE.start_main_~fac~0#1|) (and (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (not (< |ULTIMATE.start_main_~fac~0#1| 1)) (not (<= (mod (div 2147483647 (* (mod |ULTIMATE.start_main_~length~0#1| 1073741824) 4)) 4294967296) (mod |ULTIMATE.start_main_~fac~0#1| 4294967296))))) (not (< |ULTIMATE.start_main_~length~0#1| 1)) (not (<= 536870911 (mod |ULTIMATE.start_main_~length~0#1| 4294967296)))) [2022-11-19 08:24:36,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L524-1(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L524-2(lines 524 526) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L520(line 520) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L524-5(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,860 INFO L899 garLoopResultBuilder]: For program point L524-6(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L895 garLoopResultBuilder]: At program point L524-7(lines 524 526) the Hoare annotation is: (let ((.cse0 (* (mod |ULTIMATE.start_main_~length~0#1| 1073741824) 4))) (and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (= |ULTIMATE.start_main_#t~malloc5#1.offset| |ULTIMATE.start_main_~arr2~0#1.offset|) (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc4#1.base|) (= (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|) (* (mod (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|) 1073741824) 4)) (= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= 1 (select |#valid| |ULTIMATE.start_main_#t~malloc5#1.base|)) (not (= |ULTIMATE.start_main_#t~malloc4#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|)) (= (select |#length| |ULTIMATE.start_main_#t~malloc4#1.base|) .cse0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (or (= 1 |ULTIMATE.start_main_~fac~0#1|) (and (<= |ULTIMATE.start_main_~fac~0#1| 2147483647) (not (< |ULTIMATE.start_main_~fac~0#1| 1)) (not (<= (mod (div 2147483647 .cse0) 4294967296) (mod |ULTIMATE.start_main_~fac~0#1| 4294967296))))) (<= 1 |ULTIMATE.start_main_~length~0#1|) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_#t~malloc4#1.base|) 1) (= |ULTIMATE.start_main_#t~malloc5#1.base| |ULTIMATE.start_main_~arr2~0#1.base|) (< (mod |ULTIMATE.start_main_~length~0#1| 4294967296) 536870911) (= |ULTIMATE.start_main_#t~malloc4#1.offset| |ULTIMATE.start_main_~arr~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc4#1.base| |ULTIMATE.start_main_~arr~0#1.base|) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc5#1.base|) (= |#NULL.base| 0))) [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point L524-8(lines 524 526) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point L521-3(line 521) no Hoare annotation was computed. [2022-11-19 08:24:36,861 INFO L899 garLoopResultBuilder]: For program point L521-4(line 521) no Hoare annotation was computed. [2022-11-19 08:24:36,862 INFO L895 garLoopResultBuilder]: At program point L521-5(lines 521 523) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_~fac~0#1|)) (.cse1 (* (mod |ULTIMATE.start_main_~length~0#1| 1073741824) 4))) (and (= |ULTIMATE.start_main_#t~malloc5#1.offset| |ULTIMATE.start_main_~arr2~0#1.offset|) (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc4#1.base|) (= (select |#length| |ULTIMATE.start_main_#t~malloc5#1.base|) (* (mod .cse0 1073741824) 4)) (= |ULTIMATE.start_main_#t~malloc5#1.offset| 0) (<= .cse0 2147483647) (= |ULTIMATE.start_main_#t~malloc4#1.offset| 0) (or (and (not (< |ULTIMATE.start_main_~fac~0#1| 1)) (not (<= (mod (div 2147483647 .cse1) 4294967296) (mod |ULTIMATE.start_main_~fac~0#1| 4294967296)))) (= 1 |ULTIMATE.start_main_~fac~0#1|)) (= 1 (select |#valid| |ULTIMATE.start_main_#t~malloc5#1.base|)) (not (= |ULTIMATE.start_main_#t~malloc4#1.base| |ULTIMATE.start_main_#t~malloc5#1.base|)) (= (select |#length| |ULTIMATE.start_main_#t~malloc4#1.base|) .cse1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_#t~malloc4#1.base|) 1) (= |ULTIMATE.start_main_#t~malloc5#1.base| |ULTIMATE.start_main_~arr2~0#1.base|) (< (mod |ULTIMATE.start_main_~length~0#1| 4294967296) 536870911) (= |ULTIMATE.start_main_#t~malloc4#1.offset| |ULTIMATE.start_main_~arr~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc4#1.base| |ULTIMATE.start_main_~arr~0#1.base|) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc5#1.base|) (= |#NULL.base| 0))) [2022-11-19 08:24:36,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 521) no Hoare annotation was computed. [2022-11-19 08:24:36,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 524) no Hoare annotation was computed. [2022-11-19 08:24:36,865 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:36,866 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:24:36,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:24:36 BoogieIcfgContainer [2022-11-19 08:24:36,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:24:36,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:24:36,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:24:36,908 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:24:36,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:28" (3/4) ... [2022-11-19 08:24:36,911 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:24:36,919 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-19 08:24:36,919 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:24:36,920 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 08:24:36,920 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:24:36,958 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:24:36,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:24:36,959 INFO L158 Benchmark]: Toolchain (without parser) took 69998.03ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 54.6MB in the end (delta: 45.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,960 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:24:36,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.13ms. Allocated memory is still 134.2MB. Free memory was 100.1MB in the beginning and 104.7MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.52ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,962 INFO L158 Benchmark]: Boogie Preprocessor took 53.01ms. Allocated memory is still 134.2MB. Free memory was 102.6MB in the beginning and 101.6MB in the end (delta: 980.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:24:36,962 INFO L158 Benchmark]: RCFGBuilder took 635.73ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 85.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,962 INFO L158 Benchmark]: TraceAbstraction took 68716.19ms. Allocated memory is still 134.2MB. Free memory was 84.9MB in the beginning and 56.7MB in the end (delta: 28.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,963 INFO L158 Benchmark]: Witness Printer took 51.37ms. Allocated memory is still 134.2MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:24:36,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.13ms. Allocated memory is still 134.2MB. Free memory was 100.1MB in the beginning and 104.7MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.52ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.01ms. Allocated memory is still 134.2MB. Free memory was 102.6MB in the beginning and 101.6MB in the end (delta: 980.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 635.73ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 85.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 68716.19ms. Allocated memory is still 134.2MB. Free memory was 84.9MB in the beginning and 56.7MB in the end (delta: 28.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Witness Printer took 51.37ms. Allocated memory is still 134.2MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 521]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 524]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 68.6s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 255 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 175 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 80 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 208 SyntacticMatches, 6 SemanticMatches, 89 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 46.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=8, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 51 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 268 HoareAnnotationTreeSize, 3 FomulaSimplifications, 106 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3327 FormulaSimplificationTreeSizeReductionInter, 8.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 124 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 199 ConstructedInterpolants, 1 QuantifiedInterpolants, 849 SizeOfPredicates, 17 NumberOfNonLiveVariables, 668 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 132/168 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: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 5, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 5, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 11, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 98, DAG_COMPRESSION_RETAINED_NODES: 28, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((length <= 2147483647 && (1 == fac || ((fac <= 2147483647 && !(fac < 1)) && !(2147483647 / (length % 1073741824 * 4) % 4294967296 <= fac % 4294967296)))) && !(length < 1)) && !(536870911 <= length % 4294967296) - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: ((((((((((((((((((((__builtin_alloca (fac*length*sizeof(int)) == arr2 && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length*sizeof(int))) && unknown-#length-unknown[__builtin_alloca (fac*length*sizeof(int))] == length * fac % 1073741824 * 4) && __builtin_alloca (fac*length*sizeof(int)) == 0) && length * fac <= 2147483647) && __builtin_alloca (length*sizeof(int)) == 0) && ((!(fac < 1) && !(2147483647 / (length % 1073741824 * 4) % 4294967296 <= fac % 4294967296)) || 1 == fac)) && 1 == \valid[__builtin_alloca (fac*length*sizeof(int))]) && !(__builtin_alloca (length*sizeof(int)) == __builtin_alloca (fac*length*sizeof(int)))) && unknown-#length-unknown[__builtin_alloca (length*sizeof(int))] == length % 1073741824 * 4) && 0 <= i) && 1 <= length) && \valid[0] == 0) && #NULL == 0) && \valid[__builtin_alloca (length*sizeof(int))] == 1) && __builtin_alloca (fac*length*sizeof(int)) == arr2) && length % 4294967296 < 536870911) && __builtin_alloca (length*sizeof(int)) == arr) && __builtin_alloca (length*sizeof(int)) == arr) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (fac*length*sizeof(int))) && #NULL == 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: (((((((((((((((((((((length <= 2147483647 && __builtin_alloca (fac*length*sizeof(int)) == arr2) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length*sizeof(int))) && unknown-#length-unknown[__builtin_alloca (fac*length*sizeof(int))] == length * fac % 1073741824 * 4) && __builtin_alloca (fac*length*sizeof(int)) == 0) && __builtin_alloca (length*sizeof(int)) == 0) && 0 <= j) && 1 == \valid[__builtin_alloca (fac*length*sizeof(int))]) && !(__builtin_alloca (length*sizeof(int)) == __builtin_alloca (fac*length*sizeof(int)))) && unknown-#length-unknown[__builtin_alloca (length*sizeof(int))] == length % 1073741824 * 4) && 0 <= i) && (1 == fac || ((fac <= 2147483647 && !(fac < 1)) && !(2147483647 / (length % 1073741824 * 4) % 4294967296 <= fac % 4294967296)))) && 1 <= length) && \valid[0] == 0) && #NULL == 0) && \valid[__builtin_alloca (length*sizeof(int))] == 1) && __builtin_alloca (fac*length*sizeof(int)) == arr2) && length % 4294967296 < 536870911) && __builtin_alloca (length*sizeof(int)) == arr) && __builtin_alloca (length*sizeof(int)) == arr) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (fac*length*sizeof(int))) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:24:37,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99c1b41-a70b-4467-a7b9-96a66560b30c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE