./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 4a3cef13903dd032b032a92c3e6d07b1ee77361a4ee844998d70fb602ded6daa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:04:41,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:04:41,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:04:41,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:04:41,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:04:41,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:04:41,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:04:41,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:04:41,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:04:41,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:04:41,780 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:04:41,780 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:04:41,781 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:04:41,781 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:04:41,781 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:04:41,782 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:04:41,786 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:04:41,786 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:04:41,786 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:04:41,787 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:04:41,787 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:04:41,788 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:04:41,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:04:41,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:04:41,793 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:04:41,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:04:41,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:04:41,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:04:41,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:04:41,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:04:41,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:04:41,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:04:41,795 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:04:41,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:04:41,795 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:04:41,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:04:41,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:04:41,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:04:41,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:04:41,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:04:41,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:41,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:04:41,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:04:41,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:04:41,801 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:04:41,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:04:41,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:04:41,802 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:04:41,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:04:41,803 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a3cef13903dd032b032a92c3e6d07b1ee77361a4ee844998d70fb602ded6daa [2024-11-09 01:04:42,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:04:42,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:04:42,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:04:42,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:04:42,225 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:04:42,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c Unable to find full path for "g++" [2024-11-09 01:04:44,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:04:44,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:04:44,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c [2024-11-09 01:04:44,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/data/14d6b5c00/c3cfcecb57bf4a03b52c7ca13cf31921/FLAG8aeac6db5 [2024-11-09 01:04:44,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/data/14d6b5c00/c3cfcecb57bf4a03b52c7ca13cf31921 [2024-11-09 01:04:44,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:04:44,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:04:44,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:44,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:04:44,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:04:44,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:44,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c121dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44, skipping insertion in model container [2024-11-09 01:04:44,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:44,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:04:44,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:44,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:04:44,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:44,959 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:04:44,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44 WrapperNode [2024-11-09 01:04:44,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:44,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:44,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:04:44,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:04:44,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:44,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:44,996 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-09 01:04:44,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:44,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:04:44,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:04:44,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:04:45,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:04:45,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:04:45,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:04:45,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:04:45,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (1/1) ... [2024-11-09 01:04:45,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:45,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:04:45,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:04:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:04:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:04:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:04:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:04:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:04:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:04:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:04:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:04:45,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:04:45,162 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:04:45,447 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-09 01:04:45,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:04:45,515 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:04:45,515 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:04:45,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:45 BoogieIcfgContainer [2024-11-09 01:04:45,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:04:45,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:04:45,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:04:45,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:04:45,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:04:44" (1/3) ... [2024-11-09 01:04:45,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4eb0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:45, skipping insertion in model container [2024-11-09 01:04:45,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:44" (2/3) ... [2024-11-09 01:04:45,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4eb0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:45, skipping insertion in model container [2024-11-09 01:04:45,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:45" (3/3) ... [2024-11-09 01:04:45,527 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound20.c [2024-11-09 01:04:45,546 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:04:45,547 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-09 01:04:45,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:04:45,612 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3092b90e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:04:45,612 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 01:04:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:04:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:04:45,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:45,623 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:45,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:45,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:45,629 INFO L85 PathProgramCache]: Analyzing trace with hash -785863208, now seen corresponding path program 1 times [2024-11-09 01:04:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:45,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730838402] [2024-11-09 01:04:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:45,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:45,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:45,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730838402] [2024-11-09 01:04:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730838402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:45,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:04:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292497197] [2024-11-09 01:04:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:45,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:04:45,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:04:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:04:45,892 INFO L87 Difference]: Start difference. First operand has 60 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:45,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:45,997 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2024-11-09 01:04:46,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:04:46,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 01:04:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:46,012 INFO L225 Difference]: With dead ends: 73 [2024-11-09 01:04:46,012 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 01:04:46,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:04:46,020 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:46,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 01:04:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 01:04:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 30 states have (on average 1.8) internal successors, (54), 51 states have internal predecessors, (54), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2024-11-09 01:04:46,070 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 10 [2024-11-09 01:04:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:46,072 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2024-11-09 01:04:46,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2024-11-09 01:04:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:04:46,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:46,074 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:46,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:04:46,075 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:46,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash -785864969, now seen corresponding path program 1 times [2024-11-09 01:04:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279509457] [2024-11-09 01:04:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:46,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279509457] [2024-11-09 01:04:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279509457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:04:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678107485] [2024-11-09 01:04:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:46,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:46,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:46,219 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:46,285 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2024-11-09 01:04:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:46,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 01:04:46,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:46,287 INFO L225 Difference]: With dead ends: 71 [2024-11-09 01:04:46,288 INFO L226 Difference]: Without dead ends: 61 [2024-11-09 01:04:46,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:46,290 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 7 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:46,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 152 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-09 01:04:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-09 01:04:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2024-11-09 01:04:46,299 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 10 [2024-11-09 01:04:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:46,299 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2024-11-09 01:04:46,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:46,300 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2024-11-09 01:04:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:04:46,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:46,301 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:46,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:04:46,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:46,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 163481878, now seen corresponding path program 1 times [2024-11-09 01:04:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:46,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868667362] [2024-11-09 01:04:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:46,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:04:46,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416128096] [2024-11-09 01:04:46,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:46,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:46,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:46,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:46,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:04:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:46,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:04:46,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:46,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:46,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:46,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868667362] [2024-11-09 01:04:46,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:04:46,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416128096] [2024-11-09 01:04:46,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416128096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:46,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:46,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:04:46,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900441142] [2024-11-09 01:04:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:46,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:04:46,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:46,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:04:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:04:46,433 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:46,589 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2024-11-09 01:04:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:04:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-09 01:04:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:46,591 INFO L225 Difference]: With dead ends: 100 [2024-11-09 01:04:46,591 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 01:04:46,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:04:46,593 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 29 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:46,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 73 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:04:46,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 01:04:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2024-11-09 01:04:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.6964285714285714) internal successors, (95), 77 states have internal predecessors, (95), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:04:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2024-11-09 01:04:46,604 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 13 [2024-11-09 01:04:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:46,604 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2024-11-09 01:04:46,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2024-11-09 01:04:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 01:04:46,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:46,605 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:46,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:04:46,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:46,806 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:46,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1807703528, now seen corresponding path program 1 times [2024-11-09 01:04:46,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:46,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753204843] [2024-11-09 01:04:46,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:46,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:46,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:46,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753204843] [2024-11-09 01:04:46,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753204843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:46,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:46,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:04:46,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181203392] [2024-11-09 01:04:46,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:46,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:46,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:46,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:46,988 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:47,247 INFO L93 Difference]: Finished difference Result 134 states and 171 transitions. [2024-11-09 01:04:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:47,251 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-09 01:04:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:47,253 INFO L225 Difference]: With dead ends: 134 [2024-11-09 01:04:47,253 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 01:04:47,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:47,255 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 42 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:47,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 80 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:04:47,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 01:04:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2024-11-09 01:04:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 111 states have internal predecessors, (146), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2024-11-09 01:04:47,271 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 15 [2024-11-09 01:04:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:47,271 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2024-11-09 01:04:47,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2024-11-09 01:04:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 01:04:47,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:47,272 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:47,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:04:47,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:47,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:47,273 INFO L85 PathProgramCache]: Analyzing trace with hash -204234464, now seen corresponding path program 1 times [2024-11-09 01:04:47,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:47,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931257409] [2024-11-09 01:04:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:47,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:47,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:47,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931257409] [2024-11-09 01:04:47,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931257409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:47,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:47,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:04:47,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109153471] [2024-11-09 01:04:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:47,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:47,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:47,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:47,411 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:47,629 INFO L93 Difference]: Finished difference Result 131 states and 161 transitions. [2024-11-09 01:04:47,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:47,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-09 01:04:47,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:47,632 INFO L225 Difference]: With dead ends: 131 [2024-11-09 01:04:47,632 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 01:04:47,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:47,633 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 42 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:47,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 84 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:04:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 01:04:47,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 116. [2024-11-09 01:04:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.5930232558139534) internal successors, (137), 107 states have internal predecessors, (137), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 149 transitions. [2024-11-09 01:04:47,666 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 149 transitions. Word has length 16 [2024-11-09 01:04:47,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:47,667 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 149 transitions. [2024-11-09 01:04:47,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 149 transitions. [2024-11-09 01:04:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 01:04:47,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:47,668 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:47,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:04:47,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:47,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:47,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2036301030, now seen corresponding path program 1 times [2024-11-09 01:04:47,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:47,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093264194] [2024-11-09 01:04:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:47,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:47,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093264194] [2024-11-09 01:04:47,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093264194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:47,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754937926] [2024-11-09 01:04:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:47,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:47,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:47,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:47,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:04:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:47,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:04:47,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:48,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:48,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754937926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:48,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:04:48,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 01:04:48,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62971693] [2024-11-09 01:04:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:48,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:04:48,117 INFO L87 Difference]: Start difference. First operand 116 states and 149 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:48,256 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2024-11-09 01:04:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-09 01:04:48,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:48,258 INFO L225 Difference]: With dead ends: 119 [2024-11-09 01:04:48,261 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 01:04:48,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:04:48,262 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:48,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 54 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:04:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 01:04:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-09 01:04:48,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.5813953488372092) internal successors, (136), 107 states have internal predecessors, (136), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 148 transitions. [2024-11-09 01:04:48,284 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 148 transitions. Word has length 17 [2024-11-09 01:04:48,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:48,284 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 148 transitions. [2024-11-09 01:04:48,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 148 transitions. [2024-11-09 01:04:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 01:04:48,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:48,289 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:48,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:04:48,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:48,490 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:48,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1299177570, now seen corresponding path program 1 times [2024-11-09 01:04:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:48,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43941465] [2024-11-09 01:04:48,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:04:48,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666055303] [2024-11-09 01:04:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:48,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:48,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:48,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:48,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:04:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:48,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:04:48,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:48,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:48,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:48,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:48,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43941465] [2024-11-09 01:04:48,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:04:48,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666055303] [2024-11-09 01:04:48,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666055303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:48,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:48,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:04:48,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862205309] [2024-11-09 01:04:48,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:48,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:48,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:48,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:48,707 INFO L87 Difference]: Start difference. First operand 116 states and 148 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:48,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:48,823 INFO L93 Difference]: Finished difference Result 117 states and 148 transitions. [2024-11-09 01:04:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:48,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-09 01:04:48,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:48,825 INFO L225 Difference]: With dead ends: 117 [2024-11-09 01:04:48,826 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 01:04:48,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:48,827 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 74 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:48,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 59 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:04:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 01:04:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-09 01:04:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.569767441860465) internal successors, (135), 107 states have internal predecessors, (135), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2024-11-09 01:04:48,850 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 18 [2024-11-09 01:04:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:48,851 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2024-11-09 01:04:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:04:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2024-11-09 01:04:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 01:04:48,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:48,852 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:48,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 01:04:49,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:49,053 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:49,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1989034831, now seen corresponding path program 1 times [2024-11-09 01:04:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972057539] [2024-11-09 01:04:49,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:49,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:49,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:49,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972057539] [2024-11-09 01:04:49,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972057539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:49,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919869094] [2024-11-09 01:04:49,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:49,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:49,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:49,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:49,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:04:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:49,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:04:49,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:49,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:04:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:49,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919869094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:04:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [547049788] [2024-11-09 01:04:49,410 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 01:04:49,410 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:04:49,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:04:49,419 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:04:49,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:04:50,139 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 46 for LOIs [2024-11-09 01:04:50,159 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:04:50,199 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:04:51,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [547049788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:04:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2024-11-09 01:04:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538954270] [2024-11-09 01:04:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:04:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:04:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:04:51,685 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:52,298 INFO L93 Difference]: Finished difference Result 122 states and 152 transitions. [2024-11-09 01:04:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 01:04:52,298 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2024-11-09 01:04:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:52,299 INFO L225 Difference]: With dead ends: 122 [2024-11-09 01:04:52,300 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 01:04:52,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:04:52,301 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:52,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:04:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 01:04:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-09 01:04:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 89 states have (on average 1.550561797752809) internal successors, (138), 110 states have internal predecessors, (138), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:52,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2024-11-09 01:04:52,328 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 28 [2024-11-09 01:04:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:52,329 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2024-11-09 01:04:52,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:52,329 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2024-11-09 01:04:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 01:04:52,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:52,333 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:52,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:04:52,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:52,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:52,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1988726991, now seen corresponding path program 1 times [2024-11-09 01:04:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27489222] [2024-11-09 01:04:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:52,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27489222] [2024-11-09 01:04:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27489222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878438417] [2024-11-09 01:04:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:52,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:52,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:52,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:52,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:04:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:52,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:04:52,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:52,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:04:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:04:52,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878438417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:04:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [758127926] [2024-11-09 01:04:52,921 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 01:04:52,926 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:04:52,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:04:52,926 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:04:52,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:04:53,355 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 46 for LOIs [2024-11-09 01:04:53,365 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:04:53,390 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:04:54,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [758127926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:54,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:04:54,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2024-11-09 01:04:54,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144834805] [2024-11-09 01:04:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:54,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:04:54,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:04:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:04:54,608 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:55,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:55,238 INFO L93 Difference]: Finished difference Result 126 states and 156 transitions. [2024-11-09 01:04:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 01:04:55,238 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2024-11-09 01:04:55,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:55,239 INFO L225 Difference]: With dead ends: 126 [2024-11-09 01:04:55,239 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 01:04:55,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:04:55,240 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:55,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 175 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:04:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 01:04:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-09 01:04:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 93 states have (on average 1.5268817204301075) internal successors, (142), 114 states have internal predecessors, (142), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:55,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2024-11-09 01:04:55,251 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 28 [2024-11-09 01:04:55,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:55,251 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2024-11-09 01:04:55,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:04:55,252 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2024-11-09 01:04:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 01:04:55,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:55,253 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:55,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 01:04:55,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:55,453 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:55,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:55,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1967923406, now seen corresponding path program 1 times [2024-11-09 01:04:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:55,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545242957] [2024-11-09 01:04:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:55,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:55,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:55,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545242957] [2024-11-09 01:04:55,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545242957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:55,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558833687] [2024-11-09 01:04:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:55,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:55,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:55,561 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:55,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:04:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:55,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:04:55,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:55,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:55,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558833687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:55,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:04:55,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 01:04:55,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097617921] [2024-11-09 01:04:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:55,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:04:55,683 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:04:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:55,719 INFO L93 Difference]: Finished difference Result 124 states and 154 transitions. [2024-11-09 01:04:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:55,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-09 01:04:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:55,721 INFO L225 Difference]: With dead ends: 124 [2024-11-09 01:04:55,721 INFO L226 Difference]: Without dead ends: 123 [2024-11-09 01:04:55,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:04:55,722 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 42 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:55,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 100 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-09 01:04:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-09 01:04:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 93 states have (on average 1.4946236559139785) internal successors, (139), 113 states have internal predecessors, (139), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-11-09 01:04:55,732 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 31 [2024-11-09 01:04:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:55,733 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-11-09 01:04:55,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:04:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-11-09 01:04:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:04:55,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:55,734 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:55,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 01:04:55,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 01:04:55,938 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:55,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash 876083485, now seen corresponding path program 1 times [2024-11-09 01:04:55,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:55,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837535535] [2024-11-09 01:04:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:56,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837535535] [2024-11-09 01:04:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837535535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672185106] [2024-11-09 01:04:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:56,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:56,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:56,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:56,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:04:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:04:56,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:56,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:56,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672185106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:56,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:04:56,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 01:04:56,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403605351] [2024-11-09 01:04:56,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:56,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:56,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:56,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:04:56,152 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:04:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:56,216 INFO L93 Difference]: Finished difference Result 133 states and 160 transitions. [2024-11-09 01:04:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-09 01:04:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:56,218 INFO L225 Difference]: With dead ends: 133 [2024-11-09 01:04:56,218 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 01:04:56,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:04:56,219 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 39 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:56,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 172 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 01:04:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 122. [2024-11-09 01:04:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 112 states have internal predecessors, (136), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:04:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 148 transitions. [2024-11-09 01:04:56,229 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 148 transitions. Word has length 32 [2024-11-09 01:04:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:56,230 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 148 transitions. [2024-11-09 01:04:56,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:04:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 148 transitions. [2024-11-09 01:04:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 01:04:56,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:56,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:56,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 01:04:56,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:56,436 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:04:56,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:56,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2142823194, now seen corresponding path program 1 times [2024-11-09 01:04:56,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:56,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413799173] [2024-11-09 01:04:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:56,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:56,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:56,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413799173] [2024-11-09 01:04:56,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413799173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:56,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60190109] [2024-11-09 01:04:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:56,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:56,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:56,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:56,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 01:04:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:04:56,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:56,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:04:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:04:56,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60190109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:04:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [663585913] [2024-11-09 01:04:56,733 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:04:56,733 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:04:56,733 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:04:56,734 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:04:56,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:04:58,262 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:04:58,284 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:04:58,314 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:01,976 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3729#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (<= 1 ~counter~0) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|)) (exists ((|v_ULTIMATE.start_main_~x2~0#1_39| Int) (|v_ULTIMATE.start_main_~y1~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_50|) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_39| |v_ULTIMATE.start_main_~y1~0#1_50|) 2147483649) 0) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_39| 2147483648)))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:01,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:01,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:01,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-09 01:05:01,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714207535] [2024-11-09 01:05:01,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:01,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:05:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:05:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1029, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 01:05:01,979 INFO L87 Difference]: Start difference. First operand 122 states and 148 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 01:05:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:02,160 INFO L93 Difference]: Finished difference Result 303 states and 364 transitions. [2024-11-09 01:05:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:05:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 34 [2024-11-09 01:05:02,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:02,162 INFO L225 Difference]: With dead ends: 303 [2024-11-09 01:05:02,162 INFO L226 Difference]: Without dead ends: 291 [2024-11-09 01:05:02,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=224, Invalid=1416, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 01:05:02,164 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 128 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:02,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 254 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-09 01:05:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 243. [2024-11-09 01:05:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 207 states have (on average 1.4879227053140096) internal successors, (308), 226 states have internal predecessors, (308), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:05:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 330 transitions. [2024-11-09 01:05:02,180 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 330 transitions. Word has length 34 [2024-11-09 01:05:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:02,181 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 330 transitions. [2024-11-09 01:05:02,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 01:05:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 330 transitions. [2024-11-09 01:05:02,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 01:05:02,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:02,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:02,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 01:05:02,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:02,387 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:02,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2142823209, now seen corresponding path program 1 times [2024-11-09 01:05:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478129831] [2024-11-09 01:05:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:02,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593537157] [2024-11-09 01:05:02,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:02,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:02,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:02,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:02,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 01:05:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:02,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:05:02,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:02,625 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:02,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:02,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:02,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478129831] [2024-11-09 01:05:02,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593537157] [2024-11-09 01:05:02,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593537157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [792206912] [2024-11-09 01:05:02,802 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:02,802 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:02,802 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:02,802 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:02,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:03,964 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:05:03,975 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:03,995 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:06,293 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4525#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_40| Int) (|v_ULTIMATE.start_main_~y1~0#1_57| Int)) (and (<= (+ 2147483649 (* |v_ULTIMATE.start_main_~x2~0#1_40| |v_ULTIMATE.start_main_~y1~0#1_57|)) 0) (<= 0 (+ 2147483646 |v_ULTIMATE.start_main_~y1~0#1_57|)) (<= |v_ULTIMATE.start_main_~x2~0#1_40| 2147483647) (<= |v_ULTIMATE.start_main_~y1~0#1_57| 4294967294) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_40| 2147483648)))) (<= 1 ~counter~0) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|)) (<= ~counter~0 20) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:06,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:06,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:05:06,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 01:05:06,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415898776] [2024-11-09 01:05:06,294 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:06,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:05:06,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:05:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:05:06,296 INFO L87 Difference]: Start difference. First operand 243 states and 330 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:06,456 INFO L93 Difference]: Finished difference Result 251 states and 333 transitions. [2024-11-09 01:05:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:05:06,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-09 01:05:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:06,458 INFO L225 Difference]: With dead ends: 251 [2024-11-09 01:05:06,458 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 01:05:06,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:05:06,460 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 60 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:06,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 62 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:06,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 01:05:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 239. [2024-11-09 01:05:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 208 states have (on average 1.3798076923076923) internal successors, (287), 222 states have internal predecessors, (287), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:05:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2024-11-09 01:05:06,475 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 34 [2024-11-09 01:05:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:06,476 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2024-11-09 01:05:06,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2024-11-09 01:05:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 01:05:06,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:06,477 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:06,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:06,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:06,681 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:06,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2003010091, now seen corresponding path program 1 times [2024-11-09 01:05:06,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:06,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9677636] [2024-11-09 01:05:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:06,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609724902] [2024-11-09 01:05:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:06,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:06,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:06,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:05:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:06,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:05:06,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:06,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:07,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:07,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9677636] [2024-11-09 01:05:07,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:07,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609724902] [2024-11-09 01:05:07,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609724902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:07,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1575529990] [2024-11-09 01:05:07,240 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:07,240 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:07,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:07,241 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:07,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:08,222 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:05:08,230 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:08,248 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:10,889 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5260#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (<= 1 ~counter~0) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|)) (<= ~counter~0 20) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_64| Int) (|v_ULTIMATE.start_main_~x2~0#1_41| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_41| |v_ULTIMATE.start_main_~y1~0#1_64|)) (<= |v_ULTIMATE.start_main_~x2~0#1_41| 2147483647) (<= |v_ULTIMATE.start_main_~y1~0#1_64| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_64|))))' at error location [2024-11-09 01:05:10,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:10,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:05:10,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 01:05:10,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328752933] [2024-11-09 01:05:10,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:10,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:05:10,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:10,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:05:10,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:05:10,891 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:11,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:11,073 INFO L93 Difference]: Finished difference Result 330 states and 423 transitions. [2024-11-09 01:05:11,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:05:11,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-09 01:05:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:11,076 INFO L225 Difference]: With dead ends: 330 [2024-11-09 01:05:11,076 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 01:05:11,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:05:11,077 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 86 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:11,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 104 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:05:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 01:05:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2024-11-09 01:05:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 272 states have (on average 1.3602941176470589) internal successors, (370), 286 states have internal predecessors, (370), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 398 transitions. [2024-11-09 01:05:11,096 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 398 transitions. Word has length 35 [2024-11-09 01:05:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:11,096 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 398 transitions. [2024-11-09 01:05:11,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 398 transitions. [2024-11-09 01:05:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 01:05:11,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:11,097 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:11,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:11,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:11,302 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:11,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash -146622815, now seen corresponding path program 1 times [2024-11-09 01:05:11,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:11,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125103973] [2024-11-09 01:05:11,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:11,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:11,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:11,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125103973] [2024-11-09 01:05:11,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125103973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:11,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291361592] [2024-11-09 01:05:11,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:11,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:11,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:11,383 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:11,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 01:05:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:11,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:05:11,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:11,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291361592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:05:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 01:05:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766488425] [2024-11-09 01:05:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:11,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:11,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:05:11,552 INFO L87 Difference]: Start difference. First operand 306 states and 398 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:11,699 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2024-11-09 01:05:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:11,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-09 01:05:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:11,701 INFO L225 Difference]: With dead ends: 306 [2024-11-09 01:05:11,701 INFO L226 Difference]: Without dead ends: 304 [2024-11-09 01:05:11,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:05:11,702 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 43 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:11,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 54 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-09 01:05:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 301. [2024-11-09 01:05:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 269 states have (on average 1.3494423791821561) internal successors, (363), 281 states have internal predecessors, (363), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 391 transitions. [2024-11-09 01:05:11,723 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 391 transitions. Word has length 36 [2024-11-09 01:05:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:11,723 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 391 transitions. [2024-11-09 01:05:11,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 391 transitions. [2024-11-09 01:05:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 01:05:11,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:11,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:11,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:11,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 01:05:11,925 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:11,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash -250339913, now seen corresponding path program 1 times [2024-11-09 01:05:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241248730] [2024-11-09 01:05:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:11,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:12,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241248730] [2024-11-09 01:05:12,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241248730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953749993] [2024-11-09 01:05:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:12,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:12,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:12,043 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:12,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 01:05:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:12,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:05:12,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:12,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:12,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953749993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:12,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1445880485] [2024-11-09 01:05:12,271 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:12,271 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:12,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:12,272 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:12,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:13,194 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:05:13,202 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:13,220 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:15,134 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6967#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:15,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:15,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:15,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2024-11-09 01:05:15,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030028995] [2024-11-09 01:05:15,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:15,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:05:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:05:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:05:15,137 INFO L87 Difference]: Start difference. First operand 301 states and 391 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:05:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:15,380 INFO L93 Difference]: Finished difference Result 309 states and 395 transitions. [2024-11-09 01:05:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:05:15,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 37 [2024-11-09 01:05:15,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:15,382 INFO L225 Difference]: With dead ends: 309 [2024-11-09 01:05:15,382 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 01:05:15,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 01:05:15,383 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:15,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 126 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:05:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 01:05:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-09 01:05:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 269 states have (on average 1.3345724907063197) internal successors, (359), 281 states have internal predecessors, (359), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 387 transitions. [2024-11-09 01:05:15,406 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 387 transitions. Word has length 37 [2024-11-09 01:05:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:15,406 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 387 transitions. [2024-11-09 01:05:15,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:05:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 387 transitions. [2024-11-09 01:05:15,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 01:05:15,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:15,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:15,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:15,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 01:05:15,610 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:15,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash 829397347, now seen corresponding path program 1 times [2024-11-09 01:05:15,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:15,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021816042] [2024-11-09 01:05:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:15,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:15,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:15,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021816042] [2024-11-09 01:05:15,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021816042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:15,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:15,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:05:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681086502] [2024-11-09 01:05:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:05:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:05:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:05:15,666 INFO L87 Difference]: Start difference. First operand 301 states and 387 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:15,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:15,830 INFO L93 Difference]: Finished difference Result 308 states and 394 transitions. [2024-11-09 01:05:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:05:15,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-11-09 01:05:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:15,832 INFO L225 Difference]: With dead ends: 308 [2024-11-09 01:05:15,832 INFO L226 Difference]: Without dead ends: 307 [2024-11-09 01:05:15,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:05:15,833 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:15,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 50 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-09 01:05:15,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2024-11-09 01:05:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 269 states have (on average 1.312267657992565) internal successors, (353), 281 states have internal predecessors, (353), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 381 transitions. [2024-11-09 01:05:15,854 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 381 transitions. Word has length 38 [2024-11-09 01:05:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:15,855 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 381 transitions. [2024-11-09 01:05:15,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 381 transitions. [2024-11-09 01:05:15,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 01:05:15,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:15,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:15,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 01:05:15,856 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:15,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1693031341, now seen corresponding path program 1 times [2024-11-09 01:05:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:15,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508422223] [2024-11-09 01:05:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:05:16,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508422223] [2024-11-09 01:05:16,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508422223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294567410] [2024-11-09 01:05:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:16,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:16,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:16,043 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:16,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 01:05:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:16,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:05:16,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:05:16,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:05:16,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294567410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:16,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [479833885] [2024-11-09 01:05:16,623 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:16,624 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:16,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:16,624 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:16,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:17,646 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:05:17,654 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:17,673 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:20,358 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8612#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_72| Int) (|v_ULTIMATE.start_main_~x2~0#1_43| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_43| 2147483647) (<= (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_72|) 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_72|) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_43| 2147483648)))) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:20,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:20,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:20,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-09 01:05:20,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684461939] [2024-11-09 01:05:20,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:20,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:05:20,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:20,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:05:20,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 01:05:20,360 INFO L87 Difference]: Start difference. First operand 301 states and 381 transitions. Second operand has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:05:20,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:20,934 INFO L93 Difference]: Finished difference Result 311 states and 388 transitions. [2024-11-09 01:05:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:05:20,934 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-11-09 01:05:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:20,936 INFO L225 Difference]: With dead ends: 311 [2024-11-09 01:05:20,936 INFO L226 Difference]: Without dead ends: 308 [2024-11-09 01:05:20,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 78 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=272, Invalid=1708, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 01:05:20,937 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 185 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:20,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 107 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:05:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-09 01:05:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 298. [2024-11-09 01:05:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 269 states have (on average 1.245353159851301) internal successors, (335), 278 states have internal predecessors, (335), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 363 transitions. [2024-11-09 01:05:20,960 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 363 transitions. Word has length 38 [2024-11-09 01:05:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:20,960 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 363 transitions. [2024-11-09 01:05:20,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:05:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 363 transitions. [2024-11-09 01:05:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 01:05:20,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:20,961 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:20,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 01:05:21,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 01:05:21,162 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:21,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:21,162 INFO L85 PathProgramCache]: Analyzing trace with hash -58485959, now seen corresponding path program 1 times [2024-11-09 01:05:21,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:21,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089953879] [2024-11-09 01:05:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:21,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:21,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:21,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089953879] [2024-11-09 01:05:21,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089953879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:21,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:21,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:05:21,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974650475] [2024-11-09 01:05:21,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:21,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:05:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:21,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:05:21,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:05:21,229 INFO L87 Difference]: Start difference. First operand 298 states and 363 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:21,346 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2024-11-09 01:05:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:05:21,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-09 01:05:21,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:21,347 INFO L225 Difference]: With dead ends: 305 [2024-11-09 01:05:21,347 INFO L226 Difference]: Without dead ends: 304 [2024-11-09 01:05:21,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:05:21,348 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:21,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 45 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-09 01:05:21,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 298. [2024-11-09 01:05:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 269 states have (on average 1.2230483271375465) internal successors, (329), 278 states have internal predecessors, (329), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:05:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 357 transitions. [2024-11-09 01:05:21,371 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 357 transitions. Word has length 39 [2024-11-09 01:05:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:21,371 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 357 transitions. [2024-11-09 01:05:21,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 357 transitions. [2024-11-09 01:05:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 01:05:21,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:21,372 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:21,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 01:05:21,372 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:21,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash 944364079, now seen corresponding path program 1 times [2024-11-09 01:05:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948578624] [2024-11-09 01:05:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:21,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067180862] [2024-11-09 01:05:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:21,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:21,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:21,385 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:21,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 01:05:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:21,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:05:21,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:21,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:21,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:21,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948578624] [2024-11-09 01:05:21,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:21,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067180862] [2024-11-09 01:05:21,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067180862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:21,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849320537] [2024-11-09 01:05:21,784 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:21,784 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:21,784 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:21,785 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:21,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:22,755 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:05:22,763 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:22,788 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:25,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10266#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_80| Int) (|v_ULTIMATE.start_main_~x2~0#1_44| Int)) (and (<= 1 (* |v_ULTIMATE.start_main_~x2~0#1_44| |v_ULTIMATE.start_main_~y1~0#1_80|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_80|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_44| |v_ULTIMATE.start_main_~y1~0#1_80|) 2147483647))))' at error location [2024-11-09 01:05:25,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:25,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:25,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-09 01:05:25,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422148641] [2024-11-09 01:05:25,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:25,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:05:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:05:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:05:25,017 INFO L87 Difference]: Start difference. First operand 298 states and 357 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:05:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:25,589 INFO L93 Difference]: Finished difference Result 400 states and 476 transitions. [2024-11-09 01:05:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:05:25,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-09 01:05:25,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:25,591 INFO L225 Difference]: With dead ends: 400 [2024-11-09 01:05:25,591 INFO L226 Difference]: Without dead ends: 282 [2024-11-09 01:05:25,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=212, Invalid=1270, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 01:05:25,593 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 94 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:25,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 95 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:05:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-09 01:05:25,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 276. [2024-11-09 01:05:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 249 states have (on average 1.1927710843373494) internal successors, (297), 257 states have internal predecessors, (297), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:05:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 323 transitions. [2024-11-09 01:05:25,616 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 323 transitions. Word has length 39 [2024-11-09 01:05:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:25,617 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 323 transitions. [2024-11-09 01:05:25,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:05:25,617 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 323 transitions. [2024-11-09 01:05:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 01:05:25,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:25,618 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:25,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 01:05:25,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:25,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:25,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1921706059, now seen corresponding path program 1 times [2024-11-09 01:05:25,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:25,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466334315] [2024-11-09 01:05:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:25,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:25,869 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:05:25,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:25,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466334315] [2024-11-09 01:05:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466334315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:25,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:25,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:05:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263145595] [2024-11-09 01:05:25,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:25,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:05:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:25,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:05:25,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:05:25,872 INFO L87 Difference]: Start difference. First operand 276 states and 323 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:05:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:25,914 INFO L93 Difference]: Finished difference Result 284 states and 330 transitions. [2024-11-09 01:05:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:05:25,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2024-11-09 01:05:25,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:25,918 INFO L225 Difference]: With dead ends: 284 [2024-11-09 01:05:25,918 INFO L226 Difference]: Without dead ends: 282 [2024-11-09 01:05:25,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:05:25,919 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:25,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 92 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:05:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-09 01:05:25,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 274. [2024-11-09 01:05:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 249 states have (on average 1.144578313253012) internal successors, (285), 255 states have internal predecessors, (285), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:05:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 311 transitions. [2024-11-09 01:05:25,944 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 311 transitions. Word has length 50 [2024-11-09 01:05:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:25,945 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 311 transitions. [2024-11-09 01:05:25,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 01:05:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 311 transitions. [2024-11-09 01:05:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:05:25,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:25,946 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:25,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 01:05:25,946 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:25,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:25,947 INFO L85 PathProgramCache]: Analyzing trace with hash -949175298, now seen corresponding path program 2 times [2024-11-09 01:05:25,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:25,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953983338] [2024-11-09 01:05:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:25,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:05:25,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474604982] [2024-11-09 01:05:25,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:05:25,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:25,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:25,967 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:25,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 01:05:26,023 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 01:05:26,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:05:26,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:05:26,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:05:26,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:26,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953983338] [2024-11-09 01:05:26,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:05:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474604982] [2024-11-09 01:05:26,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474604982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1285810919] [2024-11-09 01:05:26,921 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:26,921 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:26,921 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:26,922 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:26,922 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:27,915 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 01:05:27,921 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:27,931 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:31,275 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11931#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (<= 1 ~counter~0) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|)) (<= ~counter~0 20) (exists ((|v_ULTIMATE.start_main_~y1~0#1_87| Int) (|v_ULTIMATE.start_main_~x2~0#1_45| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_87| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_87|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_45| |v_ULTIMATE.start_main_~y1~0#1_87|)) (<= |v_ULTIMATE.start_main_~x2~0#1_45| 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:31,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:31,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:05:31,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 01:05:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311313869] [2024-11-09 01:05:31,275 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:05:31,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:31,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:05:31,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1242, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:05:31,276 INFO L87 Difference]: Start difference. First operand 274 states and 311 transitions. Second operand has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:05:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:32,143 INFO L93 Difference]: Finished difference Result 291 states and 326 transitions. [2024-11-09 01:05:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 01:05:32,146 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-11-09 01:05:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:32,147 INFO L225 Difference]: With dead ends: 291 [2024-11-09 01:05:32,147 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 01:05:32,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 85 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=341, Invalid=2311, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 01:05:32,149 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 120 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:32,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 134 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:05:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 01:05:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 163. [2024-11-09 01:05:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 145 states have (on average 1.103448275862069) internal successors, (160), 148 states have internal predecessors, (160), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 01:05:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 178 transitions. [2024-11-09 01:05:32,170 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 178 transitions. Word has length 56 [2024-11-09 01:05:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:32,170 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 178 transitions. [2024-11-09 01:05:32,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:05:32,171 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 178 transitions. [2024-11-09 01:05:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 01:05:32,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:32,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:32,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 01:05:32,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 01:05:32,376 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:32,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash -619039360, now seen corresponding path program 2 times [2024-11-09 01:05:32,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:32,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153456126] [2024-11-09 01:05:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:32,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:05:32,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:32,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153456126] [2024-11-09 01:05:32,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153456126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:32,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735629243] [2024-11-09 01:05:32,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:05:32,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:32,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:32,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 01:05:32,599 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 01:05:32,600 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:05:32,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:05:32,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:05:32,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:32,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735629243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:32,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:05:32,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 01:05:32,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982809549] [2024-11-09 01:05:32,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:32,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:32,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:32,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:32,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:05:32,714 INFO L87 Difference]: Start difference. First operand 163 states and 178 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:32,792 INFO L93 Difference]: Finished difference Result 200 states and 218 transitions. [2024-11-09 01:05:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:32,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2024-11-09 01:05:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:32,794 INFO L225 Difference]: With dead ends: 200 [2024-11-09 01:05:32,794 INFO L226 Difference]: Without dead ends: 193 [2024-11-09 01:05:32,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:05:32,795 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:32,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 55 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-09 01:05:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 176. [2024-11-09 01:05:32,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 157 states have (on average 1.0764331210191083) internal successors, (169), 161 states have internal predecessors, (169), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:05:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2024-11-09 01:05:32,812 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 58 [2024-11-09 01:05:32,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:32,813 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2024-11-09 01:05:32,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:05:32,813 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2024-11-09 01:05:32,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 01:05:32,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:32,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:32,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 01:05:33,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 01:05:33,014 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:33,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:33,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1214673003, now seen corresponding path program 1 times [2024-11-09 01:05:33,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:33,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839355329] [2024-11-09 01:05:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:33,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:05:33,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:33,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839355329] [2024-11-09 01:05:33,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839355329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:33,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322741332] [2024-11-09 01:05:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:33,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:33,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:33,095 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:33,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 01:05:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:33,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:05:33,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:05:33,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:05:33,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322741332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:33,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1645968048] [2024-11-09 01:05:33,341 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:33,341 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:33,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:33,342 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:33,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:34,179 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:05:34,183 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:34,203 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:36,334 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13514#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~y3~0#1| 0) (not (= |ULTIMATE.start_main_~y3~0#1| 0)) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (= (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|) |ULTIMATE.start_main_~x1~0#1|))' at error location [2024-11-09 01:05:36,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:36,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:36,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 01:05:36,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158104919] [2024-11-09 01:05:36,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:36,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:05:36,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:36,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:05:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:05:36,341 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand has 9 states, 8 states have (on average 15.0) internal successors, (120), 9 states have internal predecessors, (120), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 01:05:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:36,525 INFO L93 Difference]: Finished difference Result 349 states and 404 transitions. [2024-11-09 01:05:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:05:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.0) internal successors, (120), 9 states have internal predecessors, (120), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 66 [2024-11-09 01:05:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:36,528 INFO L225 Difference]: With dead ends: 349 [2024-11-09 01:05:36,528 INFO L226 Difference]: Without dead ends: 347 [2024-11-09 01:05:36,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 169 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:05:36,529 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 46 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:36,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 130 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:05:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-09 01:05:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 327. [2024-11-09 01:05:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 301 states have (on average 1.1096345514950166) internal successors, (334), 303 states have internal predecessors, (334), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:05:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 370 transitions. [2024-11-09 01:05:36,562 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 370 transitions. Word has length 66 [2024-11-09 01:05:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:36,563 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 370 transitions. [2024-11-09 01:05:36,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.0) internal successors, (120), 9 states have internal predecessors, (120), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 01:05:36,563 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 370 transitions. [2024-11-09 01:05:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 01:05:36,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:36,564 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:36,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:36,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:36,765 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:36,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:36,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1137443167, now seen corresponding path program 1 times [2024-11-09 01:05:36,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:36,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605476055] [2024-11-09 01:05:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:05:36,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:36,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605476055] [2024-11-09 01:05:36,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605476055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:36,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222965068] [2024-11-09 01:05:36,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:36,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:36,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:36,939 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:36,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 01:05:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:36,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:05:37,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:05:37,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:37,322 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:05:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222965068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:37,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1591030994] [2024-11-09 01:05:37,324 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 01:05:37,326 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:37,326 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:37,327 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:37,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:38,404 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:05:38,413 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:38,429 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:40,753 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14782#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:40,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:40,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:40,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 01:05:40,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130750056] [2024-11-09 01:05:40,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:40,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:05:40,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:40,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:05:40,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1237, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:05:40,756 INFO L87 Difference]: Start difference. First operand 327 states and 370 transitions. Second operand has 13 states, 11 states have (on average 11.818181818181818) internal successors, (130), 13 states have internal predecessors, (130), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:05:41,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:41,418 INFO L93 Difference]: Finished difference Result 581 states and 666 transitions. [2024-11-09 01:05:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 01:05:41,418 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.818181818181818) internal successors, (130), 13 states have internal predecessors, (130), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 79 [2024-11-09 01:05:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:41,420 INFO L225 Difference]: With dead ends: 581 [2024-11-09 01:05:41,420 INFO L226 Difference]: Without dead ends: 555 [2024-11-09 01:05:41,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 199 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=377, Invalid=2379, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 01:05:41,423 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 136 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:41,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 149 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:05:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-09 01:05:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 538. [2024-11-09 01:05:41,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 503 states have (on average 1.0715705765407555) internal successors, (539), 505 states have internal predecessors, (539), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 01:05:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 593 transitions. [2024-11-09 01:05:41,484 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 593 transitions. Word has length 79 [2024-11-09 01:05:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:41,484 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 593 transitions. [2024-11-09 01:05:41,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.818181818181818) internal successors, (130), 13 states have internal predecessors, (130), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 01:05:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 593 transitions. [2024-11-09 01:05:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-09 01:05:41,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:41,488 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:41,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 01:05:41,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 01:05:41,692 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:41,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:41,692 INFO L85 PathProgramCache]: Analyzing trace with hash 932081963, now seen corresponding path program 2 times [2024-11-09 01:05:41,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:41,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228628769] [2024-11-09 01:05:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:41,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:05:41,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:41,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228628769] [2024-11-09 01:05:41,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228628769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:41,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691820706] [2024-11-09 01:05:41,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:05:41,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:41,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:41,905 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:41,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 01:05:41,991 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 01:05:41,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:05:41,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:05:41,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:05:42,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:05:42,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691820706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:42,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126259264] [2024-11-09 01:05:42,416 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:05:42,416 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:42,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:42,416 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:42,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:43,306 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:05:43,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:43,320 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:45,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17000#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~y3~0#1| 0) (not (= |ULTIMATE.start_main_~y3~0#1| 0)) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (= (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|) |ULTIMATE.start_main_~x1~0#1|))' at error location [2024-11-09 01:05:45,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:45,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:45,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-09 01:05:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209048724] [2024-11-09 01:05:45,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:45,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 01:05:45,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 01:05:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:05:45,549 INFO L87 Difference]: Start difference. First operand 538 states and 593 transitions. Second operand has 17 states, 16 states have (on average 16.5) internal successors, (264), 17 states have internal predecessors, (264), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 01:05:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:45,937 INFO L93 Difference]: Finished difference Result 895 states and 1013 transitions. [2024-11-09 01:05:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:05:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.5) internal successors, (264), 17 states have internal predecessors, (264), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 150 [2024-11-09 01:05:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:45,942 INFO L225 Difference]: With dead ends: 895 [2024-11-09 01:05:45,942 INFO L226 Difference]: Without dead ends: 894 [2024-11-09 01:05:45,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 413 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:05:45,943 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 112 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:45,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 223 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:05:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-09 01:05:46,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 842. [2024-11-09 01:05:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 791 states have (on average 1.0859671302149179) internal successors, (859), 793 states have internal predecessors, (859), 43 states have call successors, (43), 5 states have call predecessors, (43), 5 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-09 01:05:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 945 transitions. [2024-11-09 01:05:46,020 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 945 transitions. Word has length 150 [2024-11-09 01:05:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:46,020 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 945 transitions. [2024-11-09 01:05:46,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.5) internal successors, (264), 17 states have internal predecessors, (264), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-09 01:05:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 945 transitions. [2024-11-09 01:05:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 01:05:46,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:46,024 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:46,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 01:05:46,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:46,228 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 341645983, now seen corresponding path program 1 times [2024-11-09 01:05:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972989432] [2024-11-09 01:05:46,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:46,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:05:46,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:46,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972989432] [2024-11-09 01:05:46,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972989432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:46,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690016305] [2024-11-09 01:05:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:46,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:46,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:46,738 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:46,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 01:05:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:46,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:05:46,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:05:47,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 01:05:47,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690016305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:47,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1527207007] [2024-11-09 01:05:47,585 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 01:05:47,589 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:47,589 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:47,590 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:47,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:48,384 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:05:48,398 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:48,410 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:51,951 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19963#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_49| Int) (|v_ULTIMATE.start_main_~y1~0#1_105| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_105|) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_49| 2147483648)) (<= |v_ULTIMATE.start_main_~x2~0#1_49| 2147483647) (<= (* |v_ULTIMATE.start_main_~y1~0#1_105| |v_ULTIMATE.start_main_~x2~0#1_49|) 2147483647) (<= 0 (+ (* |v_ULTIMATE.start_main_~y1~0#1_105| |v_ULTIMATE.start_main_~x2~0#1_49|) 2147483648)))) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 4611686014132420609)) (<= 21 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:51,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:51,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:51,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-09 01:05:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007596267] [2024-11-09 01:05:51,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:51,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 01:05:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:51,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 01:05:51,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=584, Invalid=3706, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 01:05:51,955 INFO L87 Difference]: Start difference. First operand 842 states and 945 transitions. Second operand has 37 states, 37 states have (on average 7.675675675675675) internal successors, (284), 37 states have internal predecessors, (284), 17 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 17 states have call predecessors, (27), 17 states have call successors, (27) [2024-11-09 01:05:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:52,979 INFO L93 Difference]: Finished difference Result 2511 states and 2907 transitions. [2024-11-09 01:05:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 01:05:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.675675675675675) internal successors, (284), 37 states have internal predecessors, (284), 17 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 17 states have call predecessors, (27), 17 states have call successors, (27) Word has length 163 [2024-11-09 01:05:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:52,986 INFO L225 Difference]: With dead ends: 2511 [2024-11-09 01:05:52,986 INFO L226 Difference]: Without dead ends: 2506 [2024-11-09 01:05:52,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 427 SyntacticMatches, 15 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1607, Invalid=7513, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 01:05:52,990 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 302 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:52,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 464 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:05:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-11-09 01:05:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2477. [2024-11-09 01:05:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2332 states have (on average 1.0934819897084047) internal successors, (2550), 2335 states have internal predecessors, (2550), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 124 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-09 01:05:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 2800 transitions. [2024-11-09 01:05:53,230 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 2800 transitions. Word has length 163 [2024-11-09 01:05:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:53,231 INFO L471 AbstractCegarLoop]: Abstraction has 2477 states and 2800 transitions. [2024-11-09 01:05:53,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.675675675675675) internal successors, (284), 37 states have internal predecessors, (284), 17 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 17 states have call predecessors, (27), 17 states have call successors, (27) [2024-11-09 01:05:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 2800 transitions. [2024-11-09 01:05:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 01:05:53,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:53,234 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:53,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:53,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 01:05:53,439 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:05:53,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:53,440 INFO L85 PathProgramCache]: Analyzing trace with hash 342046177, now seen corresponding path program 2 times [2024-11-09 01:05:53,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:53,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494129834] [2024-11-09 01:05:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:53,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 6 proven. 431 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:05:53,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:05:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494129834] [2024-11-09 01:05:53,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494129834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402874029] [2024-11-09 01:05:53,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:05:53,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:53,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:53,767 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:53,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 01:05:53,860 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 01:05:53,860 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:05:53,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:05:53,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 6 proven. 431 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:05:54,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 6 proven. 431 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 01:05:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402874029] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:05:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849022641] [2024-11-09 01:05:54,489 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 01:05:54,490 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:05:54,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:05:54,490 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:05:54,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:05:55,443 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:05:55,453 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:05:55,467 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:05:58,463 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26625#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:05:58,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:05:58,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:58,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-09 01:05:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428305928] [2024-11-09 01:05:58,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:58,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 01:05:58,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:05:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 01:05:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1818, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 01:05:58,466 INFO L87 Difference]: Start difference. First operand 2477 states and 2800 transitions. Second operand has 21 states, 19 states have (on average 14.421052631578947) internal successors, (274), 21 states have internal predecessors, (274), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 01:05:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:59,811 INFO L93 Difference]: Finished difference Result 2478 states and 2800 transitions. [2024-11-09 01:05:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-09 01:05:59,812 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 14.421052631578947) internal successors, (274), 21 states have internal predecessors, (274), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 163 [2024-11-09 01:05:59,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:59,821 INFO L225 Difference]: With dead ends: 2478 [2024-11-09 01:05:59,821 INFO L226 Difference]: Without dead ends: 2477 [2024-11-09 01:05:59,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 439 SyntacticMatches, 15 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1156, Invalid=5324, Unknown=0, NotChecked=0, Total=6480 [2024-11-09 01:05:59,824 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 227 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:59,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 217 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:05:59,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2024-11-09 01:06:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2477. [2024-11-09 01:06:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2332 states have (on average 1.0643224699828473) internal successors, (2482), 2335 states have internal predecessors, (2482), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 124 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-09 01:06:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 2732 transitions. [2024-11-09 01:06:00,081 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 2732 transitions. Word has length 163 [2024-11-09 01:06:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:00,082 INFO L471 AbstractCegarLoop]: Abstraction has 2477 states and 2732 transitions. [2024-11-09 01:06:00,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 14.421052631578947) internal successors, (274), 21 states have internal predecessors, (274), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 01:06:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 2732 transitions. [2024-11-09 01:06:00,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-09 01:06:00,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:00,092 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:06:00,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 01:06:00,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 01:06:00,293 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:06:00,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:00,294 INFO L85 PathProgramCache]: Analyzing trace with hash -561720661, now seen corresponding path program 3 times [2024-11-09 01:06:00,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:00,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013255299] [2024-11-09 01:06:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:00,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 0 proven. 1925 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 01:06:01,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:01,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013255299] [2024-11-09 01:06:01,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013255299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:01,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690705546] [2024-11-09 01:06:01,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:06:01,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:01,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:01,178 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:01,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 01:06:01,319 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:06:01,319 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:06:01,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:06:01,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 0 proven. 1925 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 01:06:01,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 0 proven. 1925 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 01:06:02,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690705546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:02,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [801716670] [2024-11-09 01:06:02,815 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:06:02,815 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:02,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:02,817 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:02,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:03,609 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:06:03,612 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:06:03,623 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:06,808 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34200#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~y3~0#1| 0) (not (= |ULTIMATE.start_main_~y3~0#1| 0)) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (= (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|) |ULTIMATE.start_main_~x1~0#1|))' at error location [2024-11-09 01:06:06,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:06,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:06:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-11-09 01:06:06,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973129189] [2024-11-09 01:06:06,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:06,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:06:06,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:06:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:06:06,814 INFO L87 Difference]: Start difference. First operand 2477 states and 2732 transitions. Second operand has 33 states, 32 states have (on average 17.25) internal successors, (552), 33 states have internal predecessors, (552), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-09 01:06:07,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:07,778 INFO L93 Difference]: Finished difference Result 3186 states and 3566 transitions. [2024-11-09 01:06:07,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 01:06:07,779 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 17.25) internal successors, (552), 33 states have internal predecessors, (552), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 318 [2024-11-09 01:06:07,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:07,789 INFO L225 Difference]: With dead ends: 3186 [2024-11-09 01:06:07,789 INFO L226 Difference]: Without dead ends: 3185 [2024-11-09 01:06:07,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 901 SyntacticMatches, 15 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1850 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:06:07,792 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 208 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:07,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 448 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:06:07,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2024-11-09 01:06:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3069. [2024-11-09 01:06:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 2893 states have (on average 1.073625993778085) internal successors, (3106), 2895 states have internal predecessors, (3106), 156 states have call successors, (156), 17 states have call predecessors, (156), 17 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-09 01:06:08,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 3418 transitions. [2024-11-09 01:06:08,097 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 3418 transitions. Word has length 318 [2024-11-09 01:06:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:08,097 INFO L471 AbstractCegarLoop]: Abstraction has 3069 states and 3418 transitions. [2024-11-09 01:06:08,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 17.25) internal successors, (552), 33 states have internal predecessors, (552), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-09 01:06:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 3418 transitions. [2024-11-09 01:06:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-09 01:06:08,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:08,108 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:06:08,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 01:06:08,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 01:06:08,313 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:06:08,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash -445168543, now seen corresponding path program 3 times [2024-11-09 01:06:08,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:08,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386781880] [2024-11-09 01:06:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:08,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 14 proven. 2059 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:06:09,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386781880] [2024-11-09 01:06:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386781880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957042630] [2024-11-09 01:06:09,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:06:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:09,302 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:09,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 01:06:09,428 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:06:09,429 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:06:09,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:06:09,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 14 proven. 2059 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:06:09,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 14 proven. 2059 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 01:06:10,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957042630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:10,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [728047710] [2024-11-09 01:06:10,750 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 01:06:10,750 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:10,750 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:10,751 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:10,751 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:11,530 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 01:06:11,538 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:06:11,549 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:16,400 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '43207#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-09 01:06:16,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:16,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:06:16,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 36 [2024-11-09 01:06:16,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422534370] [2024-11-09 01:06:16,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:16,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 01:06:16,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 01:06:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=636, Invalid=3146, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 01:06:16,404 INFO L87 Difference]: Start difference. First operand 3069 states and 3418 transitions. Second operand has 37 states, 35 states have (on average 16.057142857142857) internal successors, (562), 37 states have internal predecessors, (562), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 01:06:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:20,089 INFO L93 Difference]: Finished difference Result 9369 states and 10990 transitions. [2024-11-09 01:06:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-11-09 01:06:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 16.057142857142857) internal successors, (562), 37 states have internal predecessors, (562), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 331 [2024-11-09 01:06:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:20,115 INFO L225 Difference]: With dead ends: 9369 [2024-11-09 01:06:20,115 INFO L226 Difference]: Without dead ends: 9303 [2024-11-09 01:06:20,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1085 GetRequests, 919 SyntacticMatches, 31 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8527 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4372, Invalid=14260, Unknown=0, NotChecked=0, Total=18632 [2024-11-09 01:06:20,120 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 655 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:20,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 291 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:06:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9303 states. [2024-11-09 01:06:20,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9303 to 9286. [2024-11-09 01:06:20,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9286 states, 8795 states have (on average 1.0600341102899375) internal successors, (9323), 8797 states have internal predecessors, (9323), 471 states have call successors, (471), 17 states have call predecessors, (471), 17 states have return successors, (471), 471 states have call predecessors, (471), 471 states have call successors, (471) [2024-11-09 01:06:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9286 states to 9286 states and 10265 transitions. [2024-11-09 01:06:20,886 INFO L78 Accepts]: Start accepts. Automaton has 9286 states and 10265 transitions. Word has length 331 [2024-11-09 01:06:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:20,887 INFO L471 AbstractCegarLoop]: Abstraction has 9286 states and 10265 transitions. [2024-11-09 01:06:20,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 16.057142857142857) internal successors, (562), 37 states have internal predecessors, (562), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 01:06:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 9286 states and 10265 transitions. [2024-11-09 01:06:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2024-11-09 01:06:20,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:20,923 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:06:20,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 01:06:21,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:21,127 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 01:06:21,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:21,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1169484373, now seen corresponding path program 4 times [2024-11-09 01:06:21,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:06:21,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824055841] [2024-11-09 01:06:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:06:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9617 backedges. 0 proven. 8685 refuted. 0 times theorem prover too weak. 932 trivial. 0 not checked. [2024-11-09 01:06:23,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:06:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824055841] [2024-11-09 01:06:23,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824055841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:06:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701779166] [2024-11-09 01:06:23,774 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:06:23,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:06:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:06:23,775 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:06:23,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 01:06:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:23,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 01:06:23,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9617 backedges. 8530 proven. 20 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-11-09 01:06:25,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:06:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9617 backedges. 7710 proven. 20 refuted. 0 times theorem prover too weak. 1887 trivial. 0 not checked. [2024-11-09 01:06:27,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701779166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:06:27,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1859295057] [2024-11-09 01:06:27,333 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 01:06:27,333 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:06:27,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:06:27,333 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:06:27,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:06:28,051 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-09 01:06:28,055 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 65 for LOIs [2024-11-09 01:06:28,064 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:06:36,251 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '68035#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~y3~0#1| 0) (not (= |ULTIMATE.start_main_~y3~0#1| 0)) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (= (+ 2147483647 |ULTIMATE.start_main_~y3~0#1|) |ULTIMATE.start_main_~x1~0#1|))' at error location [2024-11-09 01:06:36,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:06:36,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:06:36,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 43, 44] total 75 [2024-11-09 01:06:36,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656962569] [2024-11-09 01:06:36,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:06:36,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-09 01:06:36,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:06:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-09 01:06:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1156, Invalid=7964, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 01:06:36,257 INFO L87 Difference]: Start difference. First operand 9286 states and 10265 transitions. Second operand has 75 states, 75 states have (on average 12.853333333333333) internal successors, (964), 75 states have internal predecessors, (964), 54 states have call successors, (79), 23 states have call predecessors, (79), 23 states have return successors, (79), 54 states have call predecessors, (79), 54 states have call successors, (79) [2024-11-09 01:07:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:01,996 INFO L93 Difference]: Finished difference Result 9296 states and 10270 transitions. [2024-11-09 01:07:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 658 states. [2024-11-09 01:07:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 12.853333333333333) internal successors, (964), 75 states have internal predecessors, (964), 54 states have call successors, (79), 23 states have call predecessors, (79), 23 states have return successors, (79), 54 states have call predecessors, (79), 54 states have call successors, (79) Word has length 654 [2024-11-09 01:07:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:02,009 INFO L225 Difference]: With dead ends: 9296 [2024-11-09 01:07:02,010 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:07:02,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2627 GetRequests, 1826 SyntacticMatches, 72 SemanticMatches, 729 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214721 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=95723, Invalid=437907, Unknown=0, NotChecked=0, Total=533630 [2024-11-09 01:07:02,077 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 438 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 8275 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 8277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:02,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 3757 Invalid, 8277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8275 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 01:07:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:07:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:07:02,078 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) [2024-11-09 01:07:02,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:07:02,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 654 [2024-11-09 01:07:02,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:02,080 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:07:02,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 12.853333333333333) internal successors, (964), 75 states have internal predecessors, (964), 54 states have call successors, (79), 23 states have call predecessors, (79), 23 states have return successors, (79), 54 states have call predecessors, (79), 54 states have call successors, (79) [2024-11-09 01:07:02,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:07:02,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:07:02,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-09 01:07:02,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-09 01:07:02,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-09 01:07:02,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-09 01:07:02,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-09 01:07:02,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-09 01:07:02,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-09 01:07:02,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-09 01:07:02,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-09 01:07:02,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-09 01:07:02,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-09 01:07:02,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-09 01:07:02,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 01:07:02,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 01:07:02,291 INFO L407 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:07:02,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:07:22,525 WARN L286 SmtUtils]: Spent 20.23s on a formula simplification. DAG size of input: 446 DAG size of output: 443 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 01:07:48,504 WARN L286 SmtUtils]: Spent 25.92s on a formula simplification. DAG size of input: 505 DAG size of output: 479 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 01:07:58,932 WARN L286 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 443 DAG size of output: 240 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 01:08:09,570 WARN L286 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 479 DAG size of output: 248 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 01:08:09,784 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:08:09,827 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,828 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,828 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:08:09,828 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,829 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,829 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,829 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,829 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,830 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,830 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,830 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,831 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,831 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,831 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,832 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,832 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,832 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,832 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,892 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,892 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,893 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:08:09,893 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,893 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,893 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,893 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,894 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,895 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,896 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,897 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:08:09,898 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,899 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,899 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,899 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:08:09,899 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:08:09,899 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:08:09,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:08:09 BoogieIcfgContainer [2024-11-09 01:08:09,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:08:09,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:08:09,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:08:09,906 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:08:09,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:45" (3/4) ... [2024-11-09 01:08:09,909 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:08:09,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 01:08:09,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 01:08:09,927 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 01:08:09,928 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 01:08:09,928 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 01:08:09,928 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:08:10,048 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:08:10,053 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:08:10,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:08:10,054 INFO L158 Benchmark]: Toolchain (without parser) took 205372.60ms. Allocated memory was 161.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 132.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-09 01:08:10,054 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:08:10,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.35ms. Allocated memory is still 161.5MB. Free memory was 132.4MB in the beginning and 119.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 01:08:10,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.20ms. Allocated memory is still 161.5MB. Free memory was 119.9MB in the beginning and 118.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:08:10,055 INFO L158 Benchmark]: Boogie Preprocessor took 23.61ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 117.4MB in the end (delta: 956.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:08:10,055 INFO L158 Benchmark]: RCFGBuilder took 494.46ms. Allocated memory is still 161.5MB. Free memory was 116.9MB in the beginning and 101.5MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 01:08:10,056 INFO L158 Benchmark]: TraceAbstraction took 204386.04ms. Allocated memory was 161.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 101.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-11-09 01:08:10,056 INFO L158 Benchmark]: Witness Printer took 147.05ms. Allocated memory is still 3.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:08:10,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.35ms. Allocated memory is still 161.5MB. Free memory was 132.4MB in the beginning and 119.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.20ms. Allocated memory is still 161.5MB. Free memory was 119.9MB in the beginning and 118.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.61ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 117.4MB in the end (delta: 956.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.46ms. Allocated memory is still 161.5MB. Free memory was 116.9MB in the beginning and 101.5MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 204386.04ms. Allocated memory was 161.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 101.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 147.05ms. Allocated memory is still 3.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] * 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: 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 3 procedures, 60 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 136.7s, OverallIterations: 31, TraceHistogramMax: 31, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3294 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3280 mSDsluCounter, 8011 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6611 mSDsCounter, 344 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13744 IncrementalHoareTripleChecker+Invalid, 14088 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 344 mSolverCounterUnsat, 1400 mSDtfsCounter, 13744 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7854 GetRequests, 6102 SyntacticMatches, 199 SemanticMatches, 1553 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238337 ImplicationChecksByTransitivity, 81.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9286occurred in iteration=30, InterpolantAutomatonStates: 1114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 31 MinimizatonAttempts, 537 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 5094 NumberOfCodeBlocks, 5073 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 6928 ConstructedInterpolants, 15 QuantifiedInterpolants, 23841 SizeOfPredicates, 88 NumberOfNonLiveVariables, 4411 ConjunctsInSsa, 231 ConjunctsInUnsatCore, 62 InterpolantComputations, 14 PerfectInterpolantSequences, 21983/46821 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: 1.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 54, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 46, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 76, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 132, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.2s, 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: 54, 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: 12, CALL_SUMMARIZER_CACHE_MISSES: 4, 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: 842, DAG_COMPRESSION_RETAINED_NODES: 138, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0 <= x1) && (counter == 20)) && (x1 <= ((long long) y3 + 2147483637))) && (x2 <= 2147483647)) && (y2 <= 20)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || ((((17 <= counter) && (x1 <= ((long long) y3 + 2147483634))) && (y2 <= 15)) && (((((((((0 <= x1) && (1 <= x2)) && (counter <= 20)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)) || ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))))) || ((((((counter <= 16) && (y2 <= 10)) && ((((long long) x2 * y1) + y2) <= 15)) && (12 <= counter)) && (x1 <= ((long long) y3 + 12))) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((x1 <= ((long long) 14 + y3)) && (14 <= counter)) && ((((long long) x2 * y1) + y2) <= 15)) && (counter <= 18)) && (y2 <= 12)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || (((((((((((0 <= x1) && (counter <= 16)) && (x2 <= 2147483647)) && (y1 == 0)) && (12 <= counter)) && (1 <= y2)) && (y2 <= 12)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (x1 <= ((long long) y3 + 12))) && (0 <= y3))) || ((((((x1 <= ((long long) 9 + y3)) && (y2 <= 7)) && (9 <= counter)) && (counter <= 13)) && ((((long long) x2 * y1) + y2) <= 15)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((((((0 <= x1) && (counter <= 17)) && (13 <= counter)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) y3 + 13))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((counter == 7) && ((((long long) x2 * y1) + y2) <= 7)) && (y2 <= 5)) && (x1 <= ((long long) 7 + y3))) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((((((0 <= x1) && (x1 <= ((long long) 9 + y3))) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (9 <= counter)) && (counter <= 13)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (counter <= 16)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (12 <= counter)) && (x1 <= 2147483647)) && (x1 <= ((long long) y3 + 12))) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (x1 <= ((long long) 14 + y3))) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (14 <= counter)) && (counter <= 18)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((((0 <= x1) && (y2 <= 10)) && (x2 <= 2147483647)) && (y1 == 0)) && (counter <= 14)) && (10 <= counter)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= ((long long) y3 + 10))) && (x1 <= 2147483647)) && (0 <= y3))) || (((((((((0 <= x1) && (counter == 5)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) 5 + y3))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (11 <= counter)) && (x1 <= ((long long) y3 + 11))) && (counter <= 15)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((0 <= x1) && (counter == 7)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) 7 + y3))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((18 <= counter) && (y2 <= 16)) && (x1 <= ((long long) y3 + 2147483635))) && (((((((((0 <= x1) && (1 <= x2)) && (counter <= 20)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)) || ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))))) || ((((((((((0 <= x1) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter <= 20)) && (x1 <= ((long long) 2147483632 + y3))) && (x1 <= 2147483647)) && (15 <= counter)) && (1 <= y1)) && (0 <= y3))) || ((((((counter <= 17) && (13 <= counter)) && ((((long long) x2 * y1) + y2) <= 15)) && (x1 <= ((long long) y3 + 13))) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)))) && (y2 <= 11))) || (((((x1 <= ((long long) 6 + y3)) && ((((long long) x2 * y1) + y2) <= 7)) && (y2 <= 4)) && (counter == 6)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || (((((((((0 <= x1) && (counter == 20)) && (x1 <= ((long long) y3 + 2147483637))) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((((0 <= x1) && (x2 == 1)) && (y2 == 0)) && (y1 == 1)) && (x1 <= ((long long) y3 + 1))) && (y3 <= 2147483646)) && (counter == 1)) && (0 <= y3))) || (((((((((0 <= x1) && (counter == 3)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) 3 + y3))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (y2 <= 16)) && (counter <= 20)) && (1 <= y2)) && (16 <= counter)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (x1 <= ((long long) y3 + 2147483633))) && (0 <= y3))) || (((((((((0 <= x1) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) 2 + y3))) && (x1 <= 2147483647)) && (counter == 2)) && (1 <= y1)) && (0 <= y3))) || (((((((((((0 <= x1) && (x2 <= 2147483647)) && (y2 <= 19)) && (y1 == 0)) && (counter <= 20)) && (x1 <= ((long long) y3 + 2147483636))) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (19 <= counter)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((long long) x2 * y1) + y2) <= 7) && (counter == 5)) && (y2 <= 3)) && (x1 <= ((long long) 5 + y3))) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((((long long) x2 * y1) + y2) <= 7) && (counter == 4)) && (x1 <= ((long long) y3 + 4))) && (y2 <= 2)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || (((((((((((0 <= x1) && (counter <= 17)) && (13 <= counter)) && (x2 <= 2147483647)) && (y2 <= 13)) && (y1 == 0)) && (x1 <= ((long long) y3 + 13))) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((0 <= x1) && (x2 <= 2147483647)) && (x1 <= ((long long) y3 + 1))) && (y2 == 1)) && (y1 == 0)) && (y3 <= 2147483646)) && (counter == 1)) && (0 <= y3))) || (((((((((x2 <= 2147483647) && (y2 == 0)) && (x1 == y3)) && (y1 == 0)) && (x2 != 0)) && (counter == 0)) && (0 <= (x2 + 2147483648))) && (x1 <= 2147483647)) && (0 <= y3))) || (((((((((((0 <= x1) && (x2 <= 2147483647)) && (x1 <= ((long long) y3 + 8))) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (8 <= counter)) && (counter <= 12)) && (x1 <= 2147483647)) && (y2 <= 8)) && (0 <= y3))) || ((((((y2 <= 13) && (counter <= 19)) && ((((long long) x2 * y1) + y2) <= 15)) && (x1 <= ((long long) 2147483632 + y3))) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)))) && (15 <= counter))) || ((((((((((0 <= x1) && (18 <= counter)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) y3 + 2147483635))) && (counter <= 20)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((0 <= x1) && (x1 <= ((long long) 6 + y3))) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter == 6)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((11 <= counter) && (x1 <= ((long long) y3 + 11))) && (counter <= 15)) && ((((long long) x2 * y1) + y2) <= 15)) && (y2 <= 9)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((((((0 <= x1) && (y2 == 0)) && (x1 <= ((long long) y3 + 8))) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (8 <= counter)) && (counter <= 12)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((0 <= x1) && (counter == 4)) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (x1 <= ((long long) y3 + 4))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((16 <= counter) && ((((long long) x2 * y1) + y2) <= 2147483646)) && (((((((((0 <= x1) && (1 <= x2)) && (counter <= 20)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)) || ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)))) && (x1 <= ((long long) y3 + 2147483633))) && (y2 <= 14))) || ((((((((((0 <= x1) && (17 <= counter)) && (x1 <= ((long long) y3 + 2147483634))) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter <= 20)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (x2 <= 2147483647)) && (counter == 4)) && (x1 <= ((long long) y3 + 4))) && (y1 == 0)) && (y2 <= 4)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || (((((((((((0 <= x1) && (x1 <= ((long long) 9 + y3))) && (x2 <= 2147483647)) && (9 <= counter)) && (y1 == 0)) && (counter <= 13)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (y2 <= 9)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((((0 <= x1) && (counter == 3)) && (1 <= x2)) && (y2 == 1)) && (x1 <= ((long long) 3 + y3))) && ((((long long) x2 * y1) + y2) <= 3)) && ((((long long) x2 * y1) + y3) <= 2147483646)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || (((((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && ((((long long) x2 * y1) + y2) <= 15)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= ((long long) 2147483632 + y3))) && (x1 <= 2147483647)) && (15 <= counter)) && (0 <= y3))) || ((((((((((0 <= x1) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter <= 20)) && (16 <= counter)) && (x1 <= 2147483647)) && (x1 <= ((long long) y3 + 2147483633))) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter <= 14)) && (10 <= counter)) && (x1 <= ((long long) y3 + 10))) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (1 <= x2)) && (y2 == 1)) && (counter <= 20)) && (16 <= counter)) && ((((long long) x2 * y1) + y3) <= 2147483646)) && (x1 <= 2147483647)) && (x1 <= ((long long) y3 + 2147483633))) && (1 <= y1)) && (0 <= y3))) || ((((((((((0 <= x1) && (x2 <= 2147483647)) && (counter == 5)) && (y2 <= 5)) && (y1 == 0)) && (1 <= y2)) && (x1 <= ((long long) 5 + y3))) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (x1 <= ((long long) 2 + y3))) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (y2 <= 2)) && (x1 <= 2147483647)) && (counter == 2)) && (0 <= y3))) || (((((((((((0 <= x1) && (x1 <= ((long long) 14 + y3))) && (x2 <= 2147483647)) && (14 <= counter)) && (y1 == 0)) && (counter <= 18)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (y2 <= 14)) && (0 <= y3))) || ((((((((((0 <= x1) && (x1 <= ((long long) 6 + y3))) && (x2 <= 2147483647)) && (y1 == 0)) && (y2 <= 6)) && (1 <= y2)) && (counter == 6)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || (((((((((((0 <= x1) && (17 <= counter)) && (x2 <= 2147483647)) && (x1 <= ((long long) y3 + 2147483634))) && (y2 <= 17)) && (y1 == 0)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((((0 <= x1) && (counter == 20)) && (x1 <= ((long long) y3 + 2147483637))) && (y2 <= 18)) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((((counter <= 14) && (10 <= counter)) && ((((long long) x2 * y1) + y2) <= 15)) && (x1 <= ((long long) y3 + 10))) && (y2 <= 8)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || (((((((((((0 <= x1) && (11 <= counter)) && (x1 <= ((long long) y3 + 11))) && (x2 <= 2147483647)) && (counter <= 15)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (y2 <= 11)) && (0 <= y3))) || (((((((((((0 <= x1) && (y2 <= 18)) && (x2 <= 2147483647)) && (18 <= counter)) && (y1 == 0)) && (x1 <= ((long long) y3 + 2147483635))) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((((((0 <= x1) && (y2 == 0)) && (1 <= x2)) && ((((long long) x2 * y1) + y3) <= 2147483647)) && (counter <= 20)) && (x1 <= ((long long) y3 + 2147483636))) && (19 <= counter)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))) || ((((y2 <= 17) && (x1 <= ((long long) y3 + 2147483636))) && (19 <= counter)) && (((((((((0 <= x1) && (1 <= x2)) && (counter <= 20)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3)) || ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (counter <= 20)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))))) || ((((((((((0 <= x1) && (counter == 3)) && (x2 <= 2147483647)) && (y1 == 0)) && (y2 <= 3)) && (x1 <= ((long long) 3 + y3))) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) || ((((((x1 <= ((long long) y3 + 8)) && ((((long long) x2 * y1) + y2) <= 15)) && (y2 <= 6)) && (8 <= counter)) && (counter <= 12)) && ((((((((0 <= x1) && (x2 <= 2147483647)) && (y1 == 0)) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3)) || (((((((0 <= x1) && (1 <= x2)) && (1 <= y2)) && (((((long long) x2 * y1) + y2) + y3) <= 2147483647)) && (x1 <= 2147483647)) && (1 <= y1)) && (0 <= y3))))) || ((((((((((0 <= x1) && (counter == 7)) && (x2 <= 2147483647)) && (y2 <= 7)) && (y1 == 0)) && (x1 <= ((long long) 7 + y3))) && (1 <= y2)) && (((long long) y2 + y3) <= 2147483647)) && (x1 <= 2147483647)) && (0 <= y3))) - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((counter == 0) && (cond == 1)) && (counter == \old(counter))) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (((((cond != 0) || (20 < counter)) || (counter < 19)) && (((cond != 0) || (counter < 2)) || (18 < counter))) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-09 01:08:10,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e5864-80d7-4404-88a0-49bf2659b71e/bin/utaipan-verify-YMUCfTKeje/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