./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2 --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 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:36,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:36,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:35:36,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:36,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:36,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:36,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:36,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:36,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:36,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:36,719 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:36,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:36,720 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:36,720 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:36,721 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:36,721 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:36,722 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:36,722 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:36,723 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:36,723 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:36,723 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:36,728 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:36,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:36,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:35:36,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:35:36,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:36,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:35:36,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:36,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:35:36,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:36,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:35:36,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:36,733 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:35:36,733 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:35:36,734 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:35:36,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:35:36,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:36,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:36,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:36,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:36,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:36,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:36,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:36,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:35:36,738 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:36,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:36,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:36,739 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:36,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:36,739 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_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274 [2024-11-02 12:35:37,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:37,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:37,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:37,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:37,063 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:37,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c Unable to find full path for "g++" [2024-11-02 12:35:39,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:39,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:39,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c [2024-11-02 12:35:39,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/data/3670f377d/9492eb9742ec4831a49e01a1ed58b7f1/FLAGc1d537149 [2024-11-02 12:35:39,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/data/3670f377d/9492eb9742ec4831a49e01a1ed58b7f1 [2024-11-02 12:35:39,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:39,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:39,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:39,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:39,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:39,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5768ef90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39, skipping insertion in model container [2024-11-02 12:35:39,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:39,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:39,860 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:39,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:39,907 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:39,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39 WrapperNode [2024-11-02 12:35:39,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:39,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:39,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:39,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:39,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,956 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 121 [2024-11-02 12:35:39,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:39,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:39,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:39,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:39,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:39,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:39,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:39,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:39,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (1/1) ... [2024-11-02 12:35:39,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:40,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:40,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:40,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:35:40,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:35:40,173 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:40,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:40,711 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:40,711 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:40,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:40,785 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:35:40,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:40 BoogieIcfgContainer [2024-11-02 12:35:40,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:40,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:40,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:40,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:40,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:39" (1/3) ... [2024-11-02 12:35:40,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133113fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:40, skipping insertion in model container [2024-11-02 12:35:40,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:39" (2/3) ... [2024-11-02 12:35:40,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133113fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:40, skipping insertion in model container [2024-11-02 12:35:40,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:40" (3/3) ... [2024-11-02 12:35:40,801 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound5.c [2024-11-02 12:35:40,830 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:40,831 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2024-11-02 12:35:40,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:40,906 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;@49becdbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:40,907 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-02 12:35:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:35:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-02 12:35:40,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:40,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-02 12:35:40,918 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:40,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash 6296, now seen corresponding path program 1 times [2024-11-02 12:35:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:40,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441969316] [2024-11-02 12:35:40,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:40,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:41,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:41,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441969316] [2024-11-02 12:35:41,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441969316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:41,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:41,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:41,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856995786] [2024-11-02 12:35:41,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:41,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:41,139 INFO L87 Difference]: Start difference. First operand has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:41,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:41,438 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2024-11-02 12:35:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:41,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-11-02 12:35:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:41,450 INFO L225 Difference]: With dead ends: 180 [2024-11-02 12:35:41,451 INFO L226 Difference]: Without dead ends: 125 [2024-11-02 12:35:41,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:41,458 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 96 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:41,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 70 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:41,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-02 12:35:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-02 12:35:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 67 states have (on average 1.8656716417910448) internal successors, (125), 122 states have internal predecessors, (125), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-11-02 12:35:41,571 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 2 [2024-11-02 12:35:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:41,573 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-11-02 12:35:41,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-11-02 12:35:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:35:41,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:41,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:35:41,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:35:41,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:41,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash 195212, now seen corresponding path program 1 times [2024-11-02 12:35:41,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:41,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72301999] [2024-11-02 12:35:41,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:41,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:41,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:41,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72301999] [2024-11-02 12:35:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72301999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:41,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:41,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4077726] [2024-11-02 12:35:41,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:41,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:41,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:41,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:41,647 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:41,819 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-02 12:35:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:41,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-02 12:35:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:41,822 INFO L225 Difference]: With dead ends: 125 [2024-11-02 12:35:41,822 INFO L226 Difference]: Without dead ends: 121 [2024-11-02 12:35:41,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:41,826 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 94 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:41,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 67 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-02 12:35:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-02 12:35:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 118 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2024-11-02 12:35:41,840 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 3 [2024-11-02 12:35:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:41,840 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2024-11-02 12:35:41,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2024-11-02 12:35:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:35:41,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:41,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:35:41,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:35:41,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:41,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash 6051610, now seen corresponding path program 1 times [2024-11-02 12:35:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961293606] [2024-11-02 12:35:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:41,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961293606] [2024-11-02 12:35:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961293606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:41,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:41,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:41,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425005719] [2024-11-02 12:35:41,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:41,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:41,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:41,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:41,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:41,939 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-02 12:35:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:42,304 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2024-11-02 12:35:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:42,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-02 12:35:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:42,305 INFO L225 Difference]: With dead ends: 121 [2024-11-02 12:35:42,305 INFO L226 Difference]: Without dead ends: 120 [2024-11-02 12:35:42,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:42,307 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 87 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:42,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 53 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-02 12:35:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-02 12:35:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.791044776119403) internal successors, (120), 117 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2024-11-02 12:35:42,324 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 4 [2024-11-02 12:35:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:42,325 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2024-11-02 12:35:42,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-02 12:35:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2024-11-02 12:35:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:35:42,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:42,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:35:42,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:35:42,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:42,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash 187599950, now seen corresponding path program 1 times [2024-11-02 12:35:42,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:42,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376237755] [2024-11-02 12:35:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:42,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:42,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376237755] [2024-11-02 12:35:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376237755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:42,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:42,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:42,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501198088] [2024-11-02 12:35:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:42,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:42,392 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:42,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:42,660 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2024-11-02 12:35:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:42,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-02 12:35:42,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:42,662 INFO L225 Difference]: With dead ends: 120 [2024-11-02 12:35:42,662 INFO L226 Difference]: Without dead ends: 119 [2024-11-02 12:35:42,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:42,664 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:42,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 53 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:42,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-02 12:35:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-02 12:35:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 116 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2024-11-02 12:35:42,681 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 5 [2024-11-02 12:35:42,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:42,681 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2024-11-02 12:35:42,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:42,682 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2024-11-02 12:35:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:35:42,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:42,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:42,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:35:42,683 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:42,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:42,687 INFO L85 PathProgramCache]: Analyzing trace with hash -105073040, now seen corresponding path program 1 times [2024-11-02 12:35:42,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:42,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526743008] [2024-11-02 12:35:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:42,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:42,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:42,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526743008] [2024-11-02 12:35:42,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526743008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:42,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:42,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:42,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138744108] [2024-11-02 12:35:42,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:42,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:42,815 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:42,872 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2024-11-02 12:35:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:42,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-02 12:35:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:42,874 INFO L225 Difference]: With dead ends: 167 [2024-11-02 12:35:42,874 INFO L226 Difference]: Without dead ends: 123 [2024-11-02 12:35:42,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:42,875 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 4 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:42,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 339 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:35:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-02 12:35:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-02 12:35:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.732394366197183) internal successors, (123), 120 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2024-11-02 12:35:42,904 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 7 [2024-11-02 12:35:42,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:42,904 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2024-11-02 12:35:42,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2024-11-02 12:35:42,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:35:42,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:42,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:42,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:35:42,906 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:42,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:42,906 INFO L85 PathProgramCache]: Analyzing trace with hash 800272963, now seen corresponding path program 1 times [2024-11-02 12:35:42,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:42,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570279982] [2024-11-02 12:35:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:42,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28228502] [2024-11-02 12:35:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:42,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:42,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:42,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:35:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:42,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:35:42,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:43,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:43,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:43,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570279982] [2024-11-02 12:35:43,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:43,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28228502] [2024-11-02 12:35:43,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28228502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:43,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:43,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:43,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770902130] [2024-11-02 12:35:43,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:43,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:43,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:43,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:43,024 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:43,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:43,223 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2024-11-02 12:35:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:43,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-02 12:35:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:43,225 INFO L225 Difference]: With dead ends: 191 [2024-11-02 12:35:43,226 INFO L226 Difference]: Without dead ends: 185 [2024-11-02 12:35:43,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:43,227 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 61 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:43,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-02 12:35:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 147. [2024-11-02 12:35:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 143 states have internal predecessors, (161), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:35:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2024-11-02 12:35:43,239 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 10 [2024-11-02 12:35:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:43,239 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2024-11-02 12:35:43,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2024-11-02 12:35:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 12:35:43,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:43,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:43,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:43,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:43,441 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:43,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash 263173317, now seen corresponding path program 1 times [2024-11-02 12:35:43,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:43,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133018200] [2024-11-02 12:35:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:43,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:43,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624127320] [2024-11-02 12:35:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:43,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:43,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:43,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:43,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:35:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:43,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:35:43,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:43,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:43,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133018200] [2024-11-02 12:35:43,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624127320] [2024-11-02 12:35:43,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624127320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:43,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:43,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804060157] [2024-11-02 12:35:43,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:43,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:43,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:43,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:43,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:43,538 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:43,648 INFO L93 Difference]: Finished difference Result 253 states and 276 transitions. [2024-11-02 12:35:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-02 12:35:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:43,650 INFO L225 Difference]: With dead ends: 253 [2024-11-02 12:35:43,650 INFO L226 Difference]: Without dead ends: 247 [2024-11-02 12:35:43,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:43,651 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 94 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:43,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 210 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:35:43,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-02 12:35:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 199. [2024-11-02 12:35:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 145 states have (on average 1.703448275862069) internal successors, (247), 194 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions. [2024-11-02 12:35:43,676 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 12 [2024-11-02 12:35:43,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:43,676 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 253 transitions. [2024-11-02 12:35:43,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions. [2024-11-02 12:35:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:35:43,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:43,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:43,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:35:43,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:43,879 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:43,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:43,879 INFO L85 PathProgramCache]: Analyzing trace with hash -493510841, now seen corresponding path program 1 times [2024-11-02 12:35:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000051975] [2024-11-02 12:35:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:43,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:43,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513659276] [2024-11-02 12:35:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:43,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:43,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:43,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:43,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:35:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:43,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:35:43,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:44,009 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:44,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:44,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000051975] [2024-11-02 12:35:44,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:44,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513659276] [2024-11-02 12:35:44,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513659276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:44,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:44,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:44,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055092348] [2024-11-02 12:35:44,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:44,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:44,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:44,012 INFO L87 Difference]: Start difference. First operand 199 states and 253 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 12:35:44,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:44,294 INFO L93 Difference]: Finished difference Result 291 states and 354 transitions. [2024-11-02 12:35:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:44,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-02 12:35:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:44,296 INFO L225 Difference]: With dead ends: 291 [2024-11-02 12:35:44,297 INFO L226 Difference]: Without dead ends: 289 [2024-11-02 12:35:44,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:44,298 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:44,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 228 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-02 12:35:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 200. [2024-11-02 12:35:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 146 states have (on average 1.6917808219178083) internal successors, (247), 195 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions. [2024-11-02 12:35:44,312 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 253 transitions. Word has length 14 [2024-11-02 12:35:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:44,313 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 253 transitions. [2024-11-02 12:35:44,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 12:35:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 253 transitions. [2024-11-02 12:35:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 12:35:44,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:44,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:44,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:35:44,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:44,515 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:44,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1881033179, now seen corresponding path program 1 times [2024-11-02 12:35:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683797875] [2024-11-02 12:35:44,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:44,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901044696] [2024-11-02 12:35:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:44,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:44,532 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:44,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:35:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:44,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:35:44,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:44,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:44,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683797875] [2024-11-02 12:35:44,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901044696] [2024-11-02 12:35:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901044696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:44,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:44,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:44,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583238930] [2024-11-02 12:35:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:44,630 INFO L87 Difference]: Start difference. First operand 200 states and 253 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:44,878 INFO L93 Difference]: Finished difference Result 290 states and 352 transitions. [2024-11-02 12:35:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-02 12:35:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:44,881 INFO L225 Difference]: With dead ends: 290 [2024-11-02 12:35:44,881 INFO L226 Difference]: Without dead ends: 288 [2024-11-02 12:35:44,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:44,882 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 141 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:44,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 231 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:44,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-02 12:35:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 201. [2024-11-02 12:35:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6802721088435375) internal successors, (247), 196 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 253 transitions. [2024-11-02 12:35:44,895 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 253 transitions. Word has length 15 [2024-11-02 12:35:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:44,895 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 253 transitions. [2024-11-02 12:35:44,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions. [2024-11-02 12:35:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:35:44,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:44,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:44,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 12:35:45,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:45,097 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:45,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1817513527, now seen corresponding path program 1 times [2024-11-02 12:35:45,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:45,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758543543] [2024-11-02 12:35:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:45,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712635885] [2024-11-02 12:35:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:45,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:45,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:45,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:35:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:45,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:35:45,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:45,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:45,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758543543] [2024-11-02 12:35:45,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712635885] [2024-11-02 12:35:45,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712635885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:45,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:45,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:45,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334719960] [2024-11-02 12:35:45,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:45,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:45,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:45,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:45,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:45,215 INFO L87 Difference]: Start difference. First operand 201 states and 253 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-02 12:35:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:45,453 INFO L93 Difference]: Finished difference Result 276 states and 296 transitions. [2024-11-02 12:35:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:45,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 12:35:45,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:45,455 INFO L225 Difference]: With dead ends: 276 [2024-11-02 12:35:45,455 INFO L226 Difference]: Without dead ends: 274 [2024-11-02 12:35:45,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:45,456 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 194 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:45,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-02 12:35:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 201. [2024-11-02 12:35:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6598639455782314) internal successors, (244), 196 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 250 transitions. [2024-11-02 12:35:45,468 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 250 transitions. Word has length 16 [2024-11-02 12:35:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:45,468 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 250 transitions. [2024-11-02 12:35:45,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-02 12:35:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 250 transitions. [2024-11-02 12:35:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:35:45,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:45,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:45,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 12:35:45,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:45,670 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:45,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash -508344419, now seen corresponding path program 1 times [2024-11-02 12:35:45,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:45,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825950083] [2024-11-02 12:35:45,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:45,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:45,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273467657] [2024-11-02 12:35:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:45,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:45,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:45,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:45,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:35:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:45,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:35:45,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:45,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:45,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825950083] [2024-11-02 12:35:45,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273467657] [2024-11-02 12:35:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273467657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:45,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:45,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:45,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863550465] [2024-11-02 12:35:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:45,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:45,778 INFO L87 Difference]: Start difference. First operand 201 states and 250 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:46,015 INFO L93 Difference]: Finished difference Result 274 states and 293 transitions. [2024-11-02 12:35:46,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-02 12:35:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:46,019 INFO L225 Difference]: With dead ends: 274 [2024-11-02 12:35:46,019 INFO L226 Difference]: Without dead ends: 272 [2024-11-02 12:35:46,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:46,020 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 191 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:46,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 253 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:46,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-02 12:35:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 201. [2024-11-02 12:35:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.6394557823129252) internal successors, (241), 196 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions. [2024-11-02 12:35:46,031 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 17 [2024-11-02 12:35:46,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:46,032 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 247 transitions. [2024-11-02 12:35:46,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:46,032 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions. [2024-11-02 12:35:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 12:35:46,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:46,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:46,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:46,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:46,234 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:46,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1421192267, now seen corresponding path program 1 times [2024-11-02 12:35:46,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:46,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199557835] [2024-11-02 12:35:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:46,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:46,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995058067] [2024-11-02 12:35:46,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:46,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:46,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:46,258 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:46,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:35:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:46,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:35:46,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:46,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:46,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199557835] [2024-11-02 12:35:46,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:46,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995058067] [2024-11-02 12:35:46,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995058067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:46,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:46,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:46,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303840834] [2024-11-02 12:35:46,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:46,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:35:46,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:35:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:46,406 INFO L87 Difference]: Start difference. First operand 201 states and 247 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:46,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:46,751 INFO L93 Difference]: Finished difference Result 289 states and 338 transitions. [2024-11-02 12:35:46,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:35:46,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-02 12:35:46,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:46,754 INFO L225 Difference]: With dead ends: 289 [2024-11-02 12:35:46,754 INFO L226 Difference]: Without dead ends: 287 [2024-11-02 12:35:46,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:35:46,755 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 216 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:46,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 265 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-02 12:35:46,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 204. [2024-11-02 12:35:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.62) internal successors, (243), 199 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 249 transitions. [2024-11-02 12:35:46,769 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 249 transitions. Word has length 18 [2024-11-02 12:35:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:46,770 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 249 transitions. [2024-11-02 12:35:46,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:46,770 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 249 transitions. [2024-11-02 12:35:46,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:35:46,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:46,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:46,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:35:46,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-02 12:35:46,976 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:46,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:46,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1107287391, now seen corresponding path program 1 times [2024-11-02 12:35:46,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:46,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551570936] [2024-11-02 12:35:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:46,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:46,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315344341] [2024-11-02 12:35:46,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:46,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:46,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:46,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:35:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:47,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:35:47,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:47,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:47,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:47,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551570936] [2024-11-02 12:35:47,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:47,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315344341] [2024-11-02 12:35:47,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315344341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:47,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:47,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:47,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960613123] [2024-11-02 12:35:47,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:47,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:35:47,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:47,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:35:47,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:47,142 INFO L87 Difference]: Start difference. First operand 204 states and 249 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:47,606 INFO L93 Difference]: Finished difference Result 288 states and 336 transitions. [2024-11-02 12:35:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:35:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-02 12:35:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:47,608 INFO L225 Difference]: With dead ends: 288 [2024-11-02 12:35:47,608 INFO L226 Difference]: Without dead ends: 286 [2024-11-02 12:35:47,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:35:47,609 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 214 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:47,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 268 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-02 12:35:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 205. [2024-11-02 12:35:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 151 states have (on average 1.609271523178808) internal successors, (243), 200 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 249 transitions. [2024-11-02 12:35:47,619 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 249 transitions. Word has length 19 [2024-11-02 12:35:47,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:47,620 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 249 transitions. [2024-11-02 12:35:47,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 249 transitions. [2024-11-02 12:35:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-02 12:35:47,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:47,621 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:47,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 12:35:47,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-02 12:35:47,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:47,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:47,822 INFO L85 PathProgramCache]: Analyzing trace with hash -33829171, now seen corresponding path program 1 times [2024-11-02 12:35:47,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:47,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326618142] [2024-11-02 12:35:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:47,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:47,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732211494] [2024-11-02 12:35:47,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:47,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:47,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:47,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:47,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 12:35:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:47,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 12:35:47,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:48,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:48,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:48,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326618142] [2024-11-02 12:35:48,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732211494] [2024-11-02 12:35:48,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732211494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:48,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:48,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299140098] [2024-11-02 12:35:48,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:48,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:35:48,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:48,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:35:48,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:35:48,074 INFO L87 Difference]: Start difference. First operand 205 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:48,559 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2024-11-02 12:35:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:35:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-02 12:35:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:48,561 INFO L225 Difference]: With dead ends: 276 [2024-11-02 12:35:48,561 INFO L226 Difference]: Without dead ends: 274 [2024-11-02 12:35:48,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:35:48,562 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 284 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:48,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 194 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-02 12:35:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 206. [2024-11-02 12:35:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 152 states have (on average 1.5986842105263157) internal successors, (243), 201 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions. [2024-11-02 12:35:48,572 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 20 [2024-11-02 12:35:48,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:48,573 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 249 transitions. [2024-11-02 12:35:48,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions. [2024-11-02 12:35:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:35:48,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:48,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:48,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:48,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-02 12:35:48,778 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:48,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:48,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1048704223, now seen corresponding path program 1 times [2024-11-02 12:35:48,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:48,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94398185] [2024-11-02 12:35:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:48,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:48,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307242437] [2024-11-02 12:35:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:48,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:48,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:48,791 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:48,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 12:35:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:48,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 12:35:48,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:49,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:49,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94398185] [2024-11-02 12:35:49,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307242437] [2024-11-02 12:35:49,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307242437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:49,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:49,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:49,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742227970] [2024-11-02 12:35:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:49,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:35:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:35:49,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:35:49,013 INFO L87 Difference]: Start difference. First operand 206 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-11-02 12:35:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:49,501 INFO L93 Difference]: Finished difference Result 276 states and 332 transitions. [2024-11-02 12:35:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:35:49,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-02 12:35:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:49,503 INFO L225 Difference]: With dead ends: 276 [2024-11-02 12:35:49,503 INFO L226 Difference]: Without dead ends: 274 [2024-11-02 12:35:49,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:35:49,504 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 283 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:49,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 193 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-02 12:35:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 207. [2024-11-02 12:35:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.588235294117647) internal successors, (243), 202 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions. [2024-11-02 12:35:49,516 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 21 [2024-11-02 12:35:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:49,516 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 249 transitions. [2024-11-02 12:35:49,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-11-02 12:35:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions. [2024-11-02 12:35:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:35:49,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:49,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:49,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:49,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-02 12:35:49,722 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:49,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash -355316783, now seen corresponding path program 1 times [2024-11-02 12:35:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417911236] [2024-11-02 12:35:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:49,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105398149] [2024-11-02 12:35:49,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:49,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:49,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:49,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:49,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-02 12:35:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:49,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:35:49,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:50,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:50,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417911236] [2024-11-02 12:35:50,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105398149] [2024-11-02 12:35:50,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105398149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:50,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:50,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238349209] [2024-11-02 12:35:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:50,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:35:50,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:50,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:35:50,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:35:50,122 INFO L87 Difference]: Start difference. First operand 207 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:35:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:50,741 INFO L93 Difference]: Finished difference Result 268 states and 330 transitions. [2024-11-02 12:35:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:35:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-02 12:35:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:50,744 INFO L225 Difference]: With dead ends: 268 [2024-11-02 12:35:50,744 INFO L226 Difference]: Without dead ends: 264 [2024-11-02 12:35:50,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:35:50,745 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 333 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:50,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 127 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:35:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-02 12:35:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 208. [2024-11-02 12:35:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 156 states have (on average 1.5576923076923077) internal successors, (243), 203 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 249 transitions. [2024-11-02 12:35:50,758 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 249 transitions. Word has length 24 [2024-11-02 12:35:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:50,759 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 249 transitions. [2024-11-02 12:35:50,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-02 12:35:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 249 transitions. [2024-11-02 12:35:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:35:50,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:50,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:50,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-02 12:35:50,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:50,967 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:50,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:50,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1870081701, now seen corresponding path program 1 times [2024-11-02 12:35:50,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:50,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304161733] [2024-11-02 12:35:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:50,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:51,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500610872] [2024-11-02 12:35:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:51,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:51,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:51,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-02 12:35:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:51,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:35:51,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:51,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:51,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304161733] [2024-11-02 12:35:51,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500610872] [2024-11-02 12:35:51,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500610872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:51,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466830352] [2024-11-02 12:35:51,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:51,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:35:51,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:51,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:35:51,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:35:51,338 INFO L87 Difference]: Start difference. First operand 208 states and 249 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-02 12:35:51,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:51,924 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2024-11-02 12:35:51,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:35:51,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-02 12:35:51,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:51,926 INFO L225 Difference]: With dead ends: 266 [2024-11-02 12:35:51,926 INFO L226 Difference]: Without dead ends: 262 [2024-11-02 12:35:51,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:35:51,929 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 257 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:51,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 129 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:35:51,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-02 12:35:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 207. [2024-11-02 12:35:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 157 states have (on average 1.535031847133758) internal successors, (241), 202 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 247 transitions. [2024-11-02 12:35:51,939 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 247 transitions. Word has length 25 [2024-11-02 12:35:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:51,939 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 247 transitions. [2024-11-02 12:35:51,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-02 12:35:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 247 transitions. [2024-11-02 12:35:51,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:35:51,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:51,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:51,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:52,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:52,144 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:52,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2137957971, now seen corresponding path program 1 times [2024-11-02 12:35:52,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:52,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190573281] [2024-11-02 12:35:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:52,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190573281] [2024-11-02 12:35:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190573281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:52,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:52,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724389351] [2024-11-02 12:35:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:52,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:52,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:52,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:52,241 INFO L87 Difference]: Start difference. First operand 207 states and 247 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:52,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:52,700 INFO L93 Difference]: Finished difference Result 232 states and 278 transitions. [2024-11-02 12:35:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:52,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-02 12:35:52,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:52,702 INFO L225 Difference]: With dead ends: 232 [2024-11-02 12:35:52,702 INFO L226 Difference]: Without dead ends: 230 [2024-11-02 12:35:52,703 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 [2024-11-02 12:35:52,704 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 92 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:52,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 143 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-02 12:35:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 208. [2024-11-02 12:35:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 203 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 247 transitions. [2024-11-02 12:35:52,715 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 247 transitions. Word has length 26 [2024-11-02 12:35:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:52,715 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 247 transitions. [2024-11-02 12:35:52,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 247 transitions. [2024-11-02 12:35:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 12:35:52,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:52,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:52,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-02 12:35:52,717 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:52,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:52,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1852187751, now seen corresponding path program 1 times [2024-11-02 12:35:52,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:52,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757294613] [2024-11-02 12:35:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:52,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:52,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757294613] [2024-11-02 12:35:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757294613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:52,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495968584] [2024-11-02 12:35:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:52,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:52,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:52,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:52,822 INFO L87 Difference]: Start difference. First operand 208 states and 247 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:53,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:53,209 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2024-11-02 12:35:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-02 12:35:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:53,211 INFO L225 Difference]: With dead ends: 226 [2024-11-02 12:35:53,212 INFO L226 Difference]: Without dead ends: 224 [2024-11-02 12:35:53,212 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 [2024-11-02 12:35:53,213 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 67 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:53,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 147 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:53,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-02 12:35:53,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2024-11-02 12:35:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 159 states have (on average 1.5157232704402517) internal successors, (241), 204 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:53,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions. [2024-11-02 12:35:53,226 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 27 [2024-11-02 12:35:53,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:53,226 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 247 transitions. [2024-11-02 12:35:53,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:53,227 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions. [2024-11-02 12:35:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-02 12:35:53,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:53,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-02 12:35:53,229 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:53,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1816322767, now seen corresponding path program 1 times [2024-11-02 12:35:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887260502] [2024-11-02 12:35:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:53,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:53,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887260502] [2024-11-02 12:35:53,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887260502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:53,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:53,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:53,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880342526] [2024-11-02 12:35:53,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:53,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:53,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:53,332 INFO L87 Difference]: Start difference. First operand 209 states and 247 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:53,644 INFO L93 Difference]: Finished difference Result 225 states and 268 transitions. [2024-11-02 12:35:53,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:53,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-02 12:35:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:53,646 INFO L225 Difference]: With dead ends: 225 [2024-11-02 12:35:53,646 INFO L226 Difference]: Without dead ends: 224 [2024-11-02 12:35:53,646 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 [2024-11-02 12:35:53,647 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 172 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:53,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 100 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-02 12:35:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 213. [2024-11-02 12:35:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 163 states have (on average 1.50920245398773) internal successors, (246), 208 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 252 transitions. [2024-11-02 12:35:53,659 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 252 transitions. Word has length 35 [2024-11-02 12:35:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:53,661 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 252 transitions. [2024-11-02 12:35:53,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 252 transitions. [2024-11-02 12:35:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-02 12:35:53,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:53,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-02 12:35:53,663 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:53,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -471430822, now seen corresponding path program 1 times [2024-11-02 12:35:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859216039] [2024-11-02 12:35:53,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:53,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:53,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859216039] [2024-11-02 12:35:53,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859216039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:53,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:53,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:53,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966730707] [2024-11-02 12:35:53,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:53,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:53,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:53,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:53,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:53,748 INFO L87 Difference]: Start difference. First operand 213 states and 252 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:53,899 INFO L93 Difference]: Finished difference Result 213 states and 252 transitions. [2024-11-02 12:35:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:53,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-02 12:35:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:53,901 INFO L225 Difference]: With dead ends: 213 [2024-11-02 12:35:53,901 INFO L226 Difference]: Without dead ends: 212 [2024-11-02 12:35:53,901 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 [2024-11-02 12:35:53,903 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:53,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 130 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:35:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-02 12:35:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-02 12:35:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4969325153374233) internal successors, (244), 207 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 250 transitions. [2024-11-02 12:35:53,929 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 250 transitions. Word has length 36 [2024-11-02 12:35:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:53,929 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 250 transitions. [2024-11-02 12:35:53,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 250 transitions. [2024-11-02 12:35:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:35:53,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:53,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-02 12:35:53,932 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:53,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1433618925, now seen corresponding path program 1 times [2024-11-02 12:35:53,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492357173] [2024-11-02 12:35:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492357173] [2024-11-02 12:35:54,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492357173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:54,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504438182] [2024-11-02 12:35:54,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:54,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:54,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:54,013 INFO L87 Difference]: Start difference. First operand 212 states and 250 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,256 INFO L93 Difference]: Finished difference Result 212 states and 250 transitions. [2024-11-02 12:35:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:54,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2024-11-02 12:35:54,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,258 INFO L225 Difference]: With dead ends: 212 [2024-11-02 12:35:54,258 INFO L226 Difference]: Without dead ends: 211 [2024-11-02 12:35:54,259 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 [2024-11-02 12:35:54,259 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 63 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 102 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-02 12:35:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-02 12:35:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 163 states have (on average 1.49079754601227) internal successors, (243), 206 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 249 transitions. [2024-11-02 12:35:54,271 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 249 transitions. Word has length 37 [2024-11-02 12:35:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,271 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 249 transitions. [2024-11-02 12:35:54,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 249 transitions. [2024-11-02 12:35:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:35:54,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:54,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-02 12:35:54,273 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:54,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2073449796, now seen corresponding path program 1 times [2024-11-02 12:35:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933544484] [2024-11-02 12:35:54,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933544484] [2024-11-02 12:35:54,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933544484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993947961] [2024-11-02 12:35:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:54,346 INFO L87 Difference]: Start difference. First operand 211 states and 249 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,449 INFO L93 Difference]: Finished difference Result 231 states and 271 transitions. [2024-11-02 12:35:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-02 12:35:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,451 INFO L225 Difference]: With dead ends: 231 [2024-11-02 12:35:54,451 INFO L226 Difference]: Without dead ends: 229 [2024-11-02 12:35:54,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:54,451 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 17 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 297 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:35:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-02 12:35:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-11-02 12:35:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 178 states have (on average 1.4662921348314606) internal successors, (261), 221 states have internal predecessors, (261), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 267 transitions. [2024-11-02 12:35:54,462 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 267 transitions. Word has length 38 [2024-11-02 12:35:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,462 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 267 transitions. [2024-11-02 12:35:54,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 267 transitions. [2024-11-02 12:35:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:35:54,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:54,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-02 12:35:54,464 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:54,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1492513594, now seen corresponding path program 1 times [2024-11-02 12:35:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324364122] [2024-11-02 12:35:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324364122] [2024-11-02 12:35:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324364122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:35:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118517420] [2024-11-02 12:35:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:35:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:35:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:54,566 INFO L87 Difference]: Start difference. First operand 226 states and 267 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,882 INFO L93 Difference]: Finished difference Result 227 states and 267 transitions. [2024-11-02 12:35:54,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:54,883 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-02 12:35:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,884 INFO L225 Difference]: With dead ends: 227 [2024-11-02 12:35:54,884 INFO L226 Difference]: Without dead ends: 226 [2024-11-02 12:35:54,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:35:54,885 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 151 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 147 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-02 12:35:54,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-02 12:35:54,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 178 states have (on average 1.4606741573033708) internal successors, (260), 221 states have internal predecessors, (260), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 266 transitions. [2024-11-02 12:35:54,898 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 266 transitions. Word has length 38 [2024-11-02 12:35:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,898 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 266 transitions. [2024-11-02 12:35:54,898 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 266 transitions. [2024-11-02 12:35:54,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-02 12:35:54,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:54,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-02 12:35:54,900 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:54,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,901 INFO L85 PathProgramCache]: Analyzing trace with hash 976718965, now seen corresponding path program 1 times [2024-11-02 12:35:54,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21627142] [2024-11-02 12:35:54,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:55,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21627142] [2024-11-02 12:35:55,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21627142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:55,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:55,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:55,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764335703] [2024-11-02 12:35:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:55,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:55,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:55,008 INFO L87 Difference]: Start difference. First operand 226 states and 266 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:55,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:55,110 INFO L93 Difference]: Finished difference Result 268 states and 280 transitions. [2024-11-02 12:35:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:55,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-11-02 12:35:55,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:55,112 INFO L225 Difference]: With dead ends: 268 [2024-11-02 12:35:55,112 INFO L226 Difference]: Without dead ends: 266 [2024-11-02 12:35:55,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:55,113 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 62 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:55,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 294 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:35:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-02 12:35:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 234. [2024-11-02 12:35:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 186 states have (on average 1.435483870967742) internal successors, (267), 229 states have internal predecessors, (267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 273 transitions. [2024-11-02 12:35:55,127 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 273 transitions. Word has length 39 [2024-11-02 12:35:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:55,128 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 273 transitions. [2024-11-02 12:35:55,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 273 transitions. [2024-11-02 12:35:55,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-02 12:35:55,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:55,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:55,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-02 12:35:55,129 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:55,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash 76905769, now seen corresponding path program 1 times [2024-11-02 12:35:55,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:55,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080529785] [2024-11-02 12:35:55,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:55,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080529785] [2024-11-02 12:35:55,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080529785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:35:55,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103720775] [2024-11-02 12:35:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:55,256 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-02 12:35:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:35:55,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103720775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:55,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:35:55,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-02 12:35:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342434783] [2024-11-02 12:35:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:55,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:35:55,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:55,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:35:55,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:35:55,412 INFO L87 Difference]: Start difference. First operand 234 states and 273 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:55,468 INFO L93 Difference]: Finished difference Result 234 states and 273 transitions. [2024-11-02 12:35:55,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:35:55,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-02 12:35:55,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:55,470 INFO L225 Difference]: With dead ends: 234 [2024-11-02 12:35:55,470 INFO L226 Difference]: Without dead ends: 233 [2024-11-02 12:35:55,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:35:55,471 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 82 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:55,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 216 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:35:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-02 12:35:55,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-02 12:35:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 186 states have (on average 1.424731182795699) internal successors, (265), 228 states have internal predecessors, (265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:55,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 271 transitions. [2024-11-02 12:35:55,486 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 271 transitions. Word has length 41 [2024-11-02 12:35:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:55,486 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 271 transitions. [2024-11-02 12:35:55,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:35:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 271 transitions. [2024-11-02 12:35:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-02 12:35:55,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:55,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:55,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:55,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,689 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-02 12:35:55,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1910888408, now seen corresponding path program 1 times [2024-11-02 12:35:55,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:55,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889918696] [2024-11-02 12:35:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:55,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889918696] [2024-11-02 12:35:55,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889918696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:35:55,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111191256] [2024-11-02 12:35:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:55,786 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:55,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d60a61-1eb9-4bdc-9589-c6eee4e0b6ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-02 12:35:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:35:55,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:35:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:56,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111191256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:35:56,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193230673] [2024-11-02 12:35:56,086 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-02 12:35:56,086 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:35:56,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:35:56,096 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:35:56,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:02,999 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs [2024-11-02 12:36:03,412 INFO L180 IcfgInterpreter]: Interpretation finished