./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.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_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/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_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/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_81a253fe-2f9f-4aa1-852c-bea9ede81d53/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 c47d59ab63382053ffbe7eb88792770801b76622345c0f78fbb8210938779c5e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:28:52,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:28:52,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:28:52,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:28:52,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:28:52,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:28:52,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:28:52,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:28:52,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:28:52,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:28:52,898 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:28:52,898 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:28:52,899 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:28:52,899 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:28:52,899 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:28:52,900 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:28:52,900 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:28:52,900 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:28:52,901 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:28:52,901 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:28:52,902 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:28:52,902 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:28:52,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:28:52,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:28:52,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:28:52,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:28:52,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:28:52,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:28:52,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:28:52,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:28:52,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:28:52,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:28:52,913 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:28:52,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:28:52,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:28:52,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:28:52,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:28:52,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:28:52,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:28:52,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:28:52,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:28:52,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:28:52,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:28:52,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:28:52,916 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:28:52,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:28:52,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:28:52,917 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:28:52,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:28:52,917 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_81a253fe-2f9f-4aa1-852c-bea9ede81d53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47d59ab63382053ffbe7eb88792770801b76622345c0f78fbb8210938779c5e [2024-11-02 12:28:53,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:28:53,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:28:53,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:28:53,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:28:53,266 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:28:53,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c Unable to find full path for "g++" [2024-11-02 12:28:55,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:28:55,496 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:28:55,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c [2024-11-02 12:28:55,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/data/dad7dac45/4386aa70ae5b4868ad801a4dd97d16e9/FLAG7faa3207a [2024-11-02 12:28:55,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/data/dad7dac45/4386aa70ae5b4868ad801a4dd97d16e9 [2024-11-02 12:28:55,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:28:55,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:28:55,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:28:55,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:28:55,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:28:55,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e67b4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55, skipping insertion in model container [2024-11-02 12:28:55,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:28:55,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:28:55,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:28:55,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:28:55,897 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:28:55,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55 WrapperNode [2024-11-02 12:28:55,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:28:55,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:28:55,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:28:55,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:28:55,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,940 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2024-11-02 12:28:55,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:28:55,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:28:55,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:28:55,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:28:55,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:28:55,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:28:55,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:28:55,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:28:55,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (1/1) ... [2024-11-02 12:28:55,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:28:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:28:56,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:28:56,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:28:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:28:56,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:28:56,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:28:56,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:28:56,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:28:56,602 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-02 12:28:56,603 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:28:56,657 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:28:56,657 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:28:56,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:28:56 BoogieIcfgContainer [2024-11-02 12:28:56,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:28:56,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:28:56,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:28:56,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:28:56,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:28:55" (1/3) ... [2024-11-02 12:28:56,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f23a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:28:56, skipping insertion in model container [2024-11-02 12:28:56,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:28:55" (2/3) ... [2024-11-02 12:28:56,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f23a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:28:56, skipping insertion in model container [2024-11-02 12:28:56,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:28:56" (3/3) ... [2024-11-02 12:28:56,670 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound10.c [2024-11-02 12:28:56,690 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:28:56,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-11-02 12:28:56,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:28:56,789 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;@34c5e9de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:28:56,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-02 12:28:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 93 states have internal predecessors, (95), 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 12:28:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:28:56,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:56,803 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:28:56,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:56,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:56,811 INFO L85 PathProgramCache]: Analyzing trace with hash 176594, now seen corresponding path program 1 times [2024-11-02 12:28:56,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:56,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52876792] [2024-11-02 12:28:56,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:56,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:57,007 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 12:28:57,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:57,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52876792] [2024-11-02 12:28:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52876792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:57,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:28:57,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361452345] [2024-11-02 12:28:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:57,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:28:57,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:57,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:28:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:28:57,045 INFO L87 Difference]: Start difference. First operand has 97 states, 49 states have (on average 1.9387755102040816) internal successors, (95), 93 states have internal predecessors, (95), 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 2 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 12:28:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:57,085 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2024-11-02 12:28:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:28:57,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 12:28:57,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:57,097 INFO L225 Difference]: With dead ends: 136 [2024-11-02 12:28:57,098 INFO L226 Difference]: Without dead ends: 89 [2024-11-02 12:28:57,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:28:57,107 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:57,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:28:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-02 12:28:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-02 12:28:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.8125) internal successors, (87), 86 states have internal predecessors, (87), 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 12:28:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2024-11-02 12:28:57,161 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 3 [2024-11-02 12:28:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:57,162 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2024-11-02 12:28:57,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 12:28:57,162 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2024-11-02 12:28:57,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:28:57,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:57,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:28:57,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:28:57,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:57,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 172596, now seen corresponding path program 1 times [2024-11-02 12:28:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632927923] [2024-11-02 12:28:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:57,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:57,247 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 12:28:57,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:57,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632927923] [2024-11-02 12:28:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632927923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:57,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:57,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:28:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960936277] [2024-11-02 12:28:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:57,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:28:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:57,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:28:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:28:57,251 INFO L87 Difference]: Start difference. First operand 89 states and 89 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 12:28:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:57,401 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2024-11-02 12:28:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:28:57,402 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 12:28:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:57,408 INFO L225 Difference]: With dead ends: 89 [2024-11-02 12:28:57,408 INFO L226 Difference]: Without dead ends: 86 [2024-11-02 12:28:57,408 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 12:28:57,410 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 65 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:57,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 53 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:28:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-02 12:28:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-02 12:28:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 48 states have (on average 1.75) internal successors, (84), 83 states have internal predecessors, (84), 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 12:28:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2024-11-02 12:28:57,440 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 3 [2024-11-02 12:28:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:57,441 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2024-11-02 12:28:57,441 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 12:28:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2024-11-02 12:28:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:28:57,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:57,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:28:57,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:28:57,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:57,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash 5350528, now seen corresponding path program 1 times [2024-11-02 12:28:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:57,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175393914] [2024-11-02 12:28:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:57,534 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 12:28:57,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:57,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175393914] [2024-11-02 12:28:57,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175393914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:57,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:28:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614617556] [2024-11-02 12:28:57,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:57,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:28:57,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:28:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:28:57,546 INFO L87 Difference]: Start difference. First operand 86 states and 86 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 12:28:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:57,709 INFO L93 Difference]: Finished difference Result 156 states and 170 transitions. [2024-11-02 12:28:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:28:57,710 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 12:28:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:57,711 INFO L225 Difference]: With dead ends: 156 [2024-11-02 12:28:57,711 INFO L226 Difference]: Without dead ends: 154 [2024-11-02 12:28:57,712 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 12:28:57,713 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 64 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:57,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 106 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:28:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-02 12:28:57,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 109. [2024-11-02 12:28:57,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 105 states have internal predecessors, (121), 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 12:28:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2024-11-02 12:28:57,726 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 4 [2024-11-02 12:28:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:57,726 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2024-11-02 12:28:57,727 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 12:28:57,727 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2024-11-02 12:28:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:28:57,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:57,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:28:57,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:28:57,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:57,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash 165866422, now seen corresponding path program 1 times [2024-11-02 12:28:57,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:57,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539457681] [2024-11-02 12:28:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:57,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:57,813 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 12:28:57,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:57,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539457681] [2024-11-02 12:28:57,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539457681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:57,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:57,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:28:57,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101945010] [2024-11-02 12:28:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:57,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:28:57,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:57,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:28:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:28:57,819 INFO L87 Difference]: Start difference. First operand 109 states and 125 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 12:28:58,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:58,172 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2024-11-02 12:28:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:28:58,172 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 12:28:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:58,174 INFO L225 Difference]: With dead ends: 149 [2024-11-02 12:28:58,174 INFO L226 Difference]: Without dead ends: 131 [2024-11-02 12:28:58,174 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 12:28:58,176 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:58,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 54 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:28:58,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-02 12:28:58,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 125. [2024-11-02 12:28:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 86 states have (on average 1.5465116279069768) internal successors, (133), 121 states have internal predecessors, (133), 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 12:28:58,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 137 transitions. [2024-11-02 12:28:58,187 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 137 transitions. Word has length 5 [2024-11-02 12:28:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:58,188 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 137 transitions. [2024-11-02 12:28:58,188 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 12:28:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 137 transitions. [2024-11-02 12:28:58,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:28:58,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:58,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:28:58,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:28:58,189 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:58,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:58,190 INFO L85 PathProgramCache]: Analyzing trace with hash -279857092, now seen corresponding path program 1 times [2024-11-02 12:28:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:58,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975885076] [2024-11-02 12:28:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:58,334 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 12:28:58,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975885076] [2024-11-02 12:28:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975885076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:28:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535491657] [2024-11-02 12:28:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:58,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:28:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:28:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:28:58,339 INFO L87 Difference]: Start difference. First operand 125 states and 137 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:28:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:58,665 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2024-11-02 12:28:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:28:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-02 12:28:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:58,668 INFO L225 Difference]: With dead ends: 125 [2024-11-02 12:28:58,671 INFO L226 Difference]: Without dead ends: 123 [2024-11-02 12:28:58,672 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 12:28:58,673 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 101 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:58,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 20 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:28:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-02 12:28:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-02 12:28:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.5) internal successors, (129), 119 states have internal predecessors, (129), 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 12:28:58,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2024-11-02 12:28:58,708 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 11 [2024-11-02 12:28:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:58,714 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2024-11-02 12:28:58,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:28:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2024-11-02 12:28:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 12:28:58,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:58,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:28:58,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:28:58,715 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:58,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash -85635192, now seen corresponding path program 1 times [2024-11-02 12:28:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:58,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260994737] [2024-11-02 12:28:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:58,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:28:58,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928217750] [2024-11-02 12:28:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:58,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:28:58,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:28:58,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:28:58,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:28:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:58,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:28:58,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:28:59,027 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 12:28:59,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:28:59,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:59,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260994737] [2024-11-02 12:28:59,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:28:59,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928217750] [2024-11-02 12:28:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928217750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:59,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:59,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:28:59,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126074480] [2024-11-02 12:28:59,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:59,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:28:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:59,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:28:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:28:59,037 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 12:28:59,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:59,246 INFO L93 Difference]: Finished difference Result 135 states and 140 transitions. [2024-11-02 12:28:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:28:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 12:28:59,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:59,248 INFO L225 Difference]: With dead ends: 135 [2024-11-02 12:28:59,249 INFO L226 Difference]: Without dead ends: 128 [2024-11-02 12:28:59,250 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 12:28:59,251 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:59,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 50 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:28:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-02 12:28:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2024-11-02 12:28:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 89 states have (on average 1.449438202247191) internal successors, (129), 122 states have internal predecessors, (129), 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 12:28:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2024-11-02 12:28:59,282 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 12 [2024-11-02 12:28:59,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:59,283 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2024-11-02 12:28:59,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 12:28:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2024-11-02 12:28:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 12:28:59,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:59,284 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 12:28:59,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:28:59,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:28:59,485 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:28:59,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:59,486 INFO L85 PathProgramCache]: Analyzing trace with hash -953979710, now seen corresponding path program 1 times [2024-11-02 12:28:59,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:59,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058275201] [2024-11-02 12:28:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:59,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:28:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404572050] [2024-11-02 12:28:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:59,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:28:59,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:28:59,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:28:59,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:28:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:59,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:28:59,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:28:59,709 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 12:28:59,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:28:59,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:59,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058275201] [2024-11-02 12:28:59,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:28:59,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404572050] [2024-11-02 12:28:59,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404572050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:59,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:59,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:28:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866644687] [2024-11-02 12:28:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:59,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:28:59,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:28:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:28:59,713 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 12:28:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:59,898 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2024-11-02 12:28:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:28:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 12:28:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:59,899 INFO L225 Difference]: With dead ends: 132 [2024-11-02 12:28:59,900 INFO L226 Difference]: Without dead ends: 111 [2024-11-02 12:28:59,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 12:28:59,902 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:59,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 55 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:28:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-02 12:28:59,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-11-02 12:28:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.5) internal successors, (108), 105 states have internal predecessors, (108), 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 12:28:59,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 112 transitions. [2024-11-02 12:28:59,918 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 112 transitions. Word has length 17 [2024-11-02 12:28:59,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:59,922 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 112 transitions. [2024-11-02 12:28:59,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 12:28:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 112 transitions. [2024-11-02 12:28:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:28:59,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:59,924 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 12:28:59,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:29:00,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-02 12:29:00,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:00,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash 798106123, now seen corresponding path program 1 times [2024-11-02 12:29:00,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091622385] [2024-11-02 12:29:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:00,262 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 12:29:00,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:00,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091622385] [2024-11-02 12:29:00,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091622385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:00,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:00,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:00,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671659427] [2024-11-02 12:29:00,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:00,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:00,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:00,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:00,265 INFO L87 Difference]: Start difference. First operand 109 states and 112 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 12:29:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:00,305 INFO L93 Difference]: Finished difference Result 111 states and 112 transitions. [2024-11-02 12:29:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:00,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 25 [2024-11-02 12:29:00,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:00,307 INFO L225 Difference]: With dead ends: 111 [2024-11-02 12:29:00,307 INFO L226 Difference]: Without dead ends: 109 [2024-11-02 12:29:00,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:00,325 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:00,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 155 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:29:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-02 12:29:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-02 12:29:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 105 states have internal predecessors, (106), 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 12:29:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2024-11-02 12:29:00,334 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 25 [2024-11-02 12:29:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:00,335 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2024-11-02 12:29:00,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 12:29:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2024-11-02 12:29:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 12:29:00,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:00,337 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] [2024-11-02 12:29:00,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 12:29:00,338 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:00,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash -661508553, now seen corresponding path program 1 times [2024-11-02 12:29:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:00,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104973209] [2024-11-02 12:29:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:29:00,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873589251] [2024-11-02 12:29:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:00,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:00,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:00,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:29:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:00,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:29:00,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:00,548 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 12:29:00,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:29:00,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104973209] [2024-11-02 12:29:00,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:29:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873589251] [2024-11-02 12:29:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873589251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:00,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135014391] [2024-11-02 12:29:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:00,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:29:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:29:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:00,553 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 12:29:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:00,806 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2024-11-02 12:29:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:29:00,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 30 [2024-11-02 12:29:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:00,808 INFO L225 Difference]: With dead ends: 179 [2024-11-02 12:29:00,808 INFO L226 Difference]: Without dead ends: 160 [2024-11-02 12:29:00,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 12:29:00,809 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:00,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 72 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-02 12:29:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2024-11-02 12:29:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 114 states have (on average 1.4035087719298245) internal successors, (160), 147 states have internal predecessors, (160), 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 12:29:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 166 transitions. [2024-11-02 12:29:00,820 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 166 transitions. Word has length 30 [2024-11-02 12:29:00,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:00,821 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 166 transitions. [2024-11-02 12:29:00,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 12:29:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 166 transitions. [2024-11-02 12:29:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 12:29:00,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:00,822 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] [2024-11-02 12:29:00,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 12:29:01,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:01,023 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:01,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -54556295, now seen corresponding path program 1 times [2024-11-02 12:29:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337112800] [2024-11-02 12:29:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:01,109 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 12:29:01,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:01,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337112800] [2024-11-02 12:29:01,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337112800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:01,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:01,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:01,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986866823] [2024-11-02 12:29:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:01,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:29:01,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:29:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:01,111 INFO L87 Difference]: Start difference. First operand 152 states and 166 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 12:29:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:01,298 INFO L93 Difference]: Finished difference Result 153 states and 166 transitions. [2024-11-02 12:29:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:29:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 32 [2024-11-02 12:29:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:01,299 INFO L225 Difference]: With dead ends: 153 [2024-11-02 12:29:01,299 INFO L226 Difference]: Without dead ends: 152 [2024-11-02 12:29:01,300 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 12:29:01,300 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 25 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:01,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 121 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-02 12:29:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-02 12:29:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 114 states have (on average 1.394736842105263) internal successors, (159), 147 states have internal predecessors, (159), 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 12:29:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 165 transitions. [2024-11-02 12:29:01,308 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 165 transitions. Word has length 32 [2024-11-02 12:29:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:01,310 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 165 transitions. [2024-11-02 12:29:01,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 12:29:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 165 transitions. [2024-11-02 12:29:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-02 12:29:01,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:01,312 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] [2024-11-02 12:29:01,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 12:29:01,312 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:01,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1788898727, now seen corresponding path program 1 times [2024-11-02 12:29:01,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:01,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58248541] [2024-11-02 12:29:01,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:01,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:29:01,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022206812] [2024-11-02 12:29:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:01,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:01,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:01,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:01,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:29:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:01,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:29:01,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:01,589 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 12:29:01,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:29:01,780 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 12:29:01,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:01,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58248541] [2024-11-02 12:29:01,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:29:01,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022206812] [2024-11-02 12:29:01,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022206812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:29:01,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130825366] [2024-11-02 12:29:01,813 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-02 12:29:01,816 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:29:01,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:29:01,845 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:29:01,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:29:04,755 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 53 for LOIs [2024-11-02 12:29:04,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:29:09,607 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3187#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 1537228672809129302 (div (+ |ULTIMATE.start_main_~y~0#1| (* 3 |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (* 2 |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) 6)) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 10) (<= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (* 3 |ULTIMATE.start_main_~y~0#1|)) (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) 4611686018427387904)))' at error location [2024-11-02 12:29:09,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:29:09,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 12:29:09,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-02 12:29:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009565041] [2024-11-02 12:29:09,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 12:29:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:29:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:09,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:29:09,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=369, Unknown=1, NotChecked=0, Total=462 [2024-11-02 12:29:09,611 INFO L87 Difference]: Start difference. First operand 152 states and 165 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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 12:29:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:10,103 INFO L93 Difference]: Finished difference Result 168 states and 182 transitions. [2024-11-02 12:29:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:29:10,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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) Word has length 35 [2024-11-02 12:29:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:10,105 INFO L225 Difference]: With dead ends: 168 [2024-11-02 12:29:10,105 INFO L226 Difference]: Without dead ends: 164 [2024-11-02 12:29:10,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 68 SyntacticMatches, 15 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=104, Invalid=447, Unknown=1, NotChecked=0, Total=552 [2024-11-02 12:29:10,106 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 172 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:10,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 110 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:29:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-02 12:29:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2024-11-02 12:29:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 153 states have internal predecessors, (163), 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 12:29:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 169 transitions. [2024-11-02 12:29:10,114 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 169 transitions. Word has length 35 [2024-11-02 12:29:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:10,114 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 169 transitions. [2024-11-02 12:29:10,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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 12:29:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 169 transitions. [2024-11-02 12:29:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 12:29:10,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:10,117 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:10,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 12:29:10,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-02 12:29:10,317 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:10,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1001935969, now seen corresponding path program 1 times [2024-11-02 12:29:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963817928] [2024-11-02 12:29:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:29:10,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724808193] [2024-11-02 12:29:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:10,348 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:10,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:29:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:10,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:29:10,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:29:10,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:29:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:29:10,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963817928] [2024-11-02 12:29:10,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:29:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724808193] [2024-11-02 12:29:10,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724808193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:29:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500900120] [2024-11-02 12:29:10,785 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-02 12:29:10,785 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:29:10,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:29:10,786 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:29:10,786 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:29:12,585 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 53 for LOIs [2024-11-02 12:29:12,600 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:29:15,044 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3809#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 10) (exists ((|v_ULTIMATE.start_main_~y~0#1_111| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_111|) (<= (* |v_ULTIMATE.start_main_~y~0#1_111| |v_ULTIMATE.start_main_~y~0#1_111| |v_ULTIMATE.start_main_~y~0#1_111|) 4611686018427387903))))' at error location [2024-11-02 12:29:15,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:29:15,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 12:29:15,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-02 12:29:15,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128263591] [2024-11-02 12:29:15,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 12:29:15,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:29:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:15,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:29:15,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2024-11-02 12:29:15,047 INFO L87 Difference]: Start difference. First operand 158 states and 169 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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 12:29:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:15,539 INFO L93 Difference]: Finished difference Result 177 states and 190 transitions. [2024-11-02 12:29:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:29:15,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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) Word has length 43 [2024-11-02 12:29:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:15,541 INFO L225 Difference]: With dead ends: 177 [2024-11-02 12:29:15,542 INFO L226 Difference]: Without dead ends: 148 [2024-11-02 12:29:15,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 89 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-11-02 12:29:15,543 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 138 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:15,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 58 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:29:15,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-02 12:29:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-02 12:29:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 141 states have internal predecessors, (149), 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 12:29:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 155 transitions. [2024-11-02 12:29:15,550 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 155 transitions. Word has length 43 [2024-11-02 12:29:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:15,551 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 155 transitions. [2024-11-02 12:29:15,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 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 12:29:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 155 transitions. [2024-11-02 12:29:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-02 12:29:15,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:15,552 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:15,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 12:29:15,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-02 12:29:15,753 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:15,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 163939794, now seen corresponding path program 1 times [2024-11-02 12:29:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:15,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10267233] [2024-11-02 12:29:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:15,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:29:15,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:15,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10267233] [2024-11-02 12:29:15,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10267233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:15,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859215942] [2024-11-02 12:29:15,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:15,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:15,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:15,904 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:15,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:29:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:15,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:29:15,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:29:16,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:29:16,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859215942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:16,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:29:16,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-02 12:29:16,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546231685] [2024-11-02 12:29:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:16,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:29:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:16,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:29:16,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:29:16,059 INFO L87 Difference]: Start difference. First operand 146 states and 155 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 12:29:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:16,084 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2024-11-02 12:29:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:29:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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) Word has length 56 [2024-11-02 12:29:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:16,086 INFO L225 Difference]: With dead ends: 146 [2024-11-02 12:29:16,086 INFO L226 Difference]: Without dead ends: 145 [2024-11-02 12:29:16,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 12:29:16,087 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 33 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:16,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 137 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:29:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-02 12:29:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-02 12:29:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.2894736842105263) internal successors, (147), 140 states have internal predecessors, (147), 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 12:29:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2024-11-02 12:29:16,094 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 56 [2024-11-02 12:29:16,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:16,095 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2024-11-02 12:29:16,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 12:29:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2024-11-02 12:29:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-02 12:29:16,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:16,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:16,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 12:29:16,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:16,297 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:16,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 787166412, now seen corresponding path program 1 times [2024-11-02 12:29:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785076764] [2024-11-02 12:29:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:29:16,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785076764] [2024-11-02 12:29:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785076764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134171639] [2024-11-02 12:29:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:16,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:16,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:16,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:29:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:16,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:29:16,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:29:16,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:29:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:29:16,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134171639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:29:16,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [663446321] [2024-11-02 12:29:16,656 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-02 12:29:16,657 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:29:16,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:29:16,657 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:29:16,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:29:18,017 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 53 for LOIs [2024-11-02 12:29:18,033 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:29:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [663446321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:29:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [3, 3, 3] total 19 [2024-11-02 12:29:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843536313] [2024-11-02 12:29:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:20,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-02 12:29:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:20,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-02 12:29:20,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-02 12:29:20,065 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand has 15 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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 12:29:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:20,709 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2024-11-02 12:29:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:29:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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 57 [2024-11-02 12:29:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:20,711 INFO L225 Difference]: With dead ends: 145 [2024-11-02 12:29:20,711 INFO L226 Difference]: Without dead ends: 129 [2024-11-02 12:29:20,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 129 SyntacticMatches, 25 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-02 12:29:20,713 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 76 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:20,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 61 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:29:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-02 12:29:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 121. [2024-11-02 12:29:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 116 states have internal predecessors, (117), 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 12:29:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2024-11-02 12:29:20,724 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 57 [2024-11-02 12:29:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:20,725 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2024-11-02 12:29:20,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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 12:29:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2024-11-02 12:29:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-02 12:29:20,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:20,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-02 12:29:20,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:29:20,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:20,936 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:20,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash -214878430, now seen corresponding path program 1 times [2024-11-02 12:29:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:20,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720035043] [2024-11-02 12:29:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:20,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-02 12:29:21,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720035043] [2024-11-02 12:29:21,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720035043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:21,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:21,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015146370] [2024-11-02 12:29:21,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:21,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:21,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,122 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:21,207 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2024-11-02 12:29:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:21,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 89 [2024-11-02 12:29:21,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:21,209 INFO L225 Difference]: With dead ends: 121 [2024-11-02 12:29:21,209 INFO L226 Difference]: Without dead ends: 120 [2024-11-02 12:29:21,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,210 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:21,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-02 12:29:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-02 12:29:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 106 states have (on average 1.0943396226415094) internal successors, (116), 115 states have internal predecessors, (116), 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 12:29:21,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2024-11-02 12:29:21,222 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 89 [2024-11-02 12:29:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:21,222 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2024-11-02 12:29:21,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2024-11-02 12:29:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-02 12:29:21,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:21,224 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:21,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-02 12:29:21,224 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:21,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:21,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1928703379, now seen corresponding path program 1 times [2024-11-02 12:29:21,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:21,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699023476] [2024-11-02 12:29:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-02 12:29:21,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:21,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699023476] [2024-11-02 12:29:21,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699023476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:21,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:21,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871350475] [2024-11-02 12:29:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:21,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:21,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,285 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:21,367 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2024-11-02 12:29:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 90 [2024-11-02 12:29:21,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:21,368 INFO L225 Difference]: With dead ends: 120 [2024-11-02 12:29:21,368 INFO L226 Difference]: Without dead ends: 119 [2024-11-02 12:29:21,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,370 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:21,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 15 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-02 12:29:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-02 12:29:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 106 states have (on average 1.0849056603773586) internal successors, (115), 114 states have internal predecessors, (115), 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 12:29:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2024-11-02 12:29:21,383 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 90 [2024-11-02 12:29:21,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:21,384 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2024-11-02 12:29:21,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2024-11-02 12:29:21,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-02 12:29:21,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:21,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:21,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-02 12:29:21,387 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:21,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1941920843, now seen corresponding path program 1 times [2024-11-02 12:29:21,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:21,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465417425] [2024-11-02 12:29:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-02 12:29:21,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:21,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465417425] [2024-11-02 12:29:21,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465417425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:21,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:21,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982906606] [2024-11-02 12:29:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:21,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:21,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,460 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:21,544 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2024-11-02 12:29:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:21,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 92 [2024-11-02 12:29:21,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:21,546 INFO L225 Difference]: With dead ends: 119 [2024-11-02 12:29:21,546 INFO L226 Difference]: Without dead ends: 116 [2024-11-02 12:29:21,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,547 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:21,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-02 12:29:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-02 12:29:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.0566037735849056) internal successors, (112), 111 states have internal predecessors, (112), 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 12:29:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2024-11-02 12:29:21,559 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 92 [2024-11-02 12:29:21,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:21,559 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2024-11-02 12:29:21,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2024-11-02 12:29:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-02 12:29:21,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:21,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:21,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-02 12:29:21,561 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:21,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -70003866, now seen corresponding path program 1 times [2024-11-02 12:29:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836133889] [2024-11-02 12:29:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:29:21,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:21,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836133889] [2024-11-02 12:29:21,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836133889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:21,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:21,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828306290] [2024-11-02 12:29:21,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:21,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:21,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:21,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:21,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,627 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:21,701 INFO L93 Difference]: Finished difference Result 116 states and 118 transitions. [2024-11-02 12:29:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 93 [2024-11-02 12:29:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:21,703 INFO L225 Difference]: With dead ends: 116 [2024-11-02 12:29:21,703 INFO L226 Difference]: Without dead ends: 115 [2024-11-02 12:29:21,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,704 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:21,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-02 12:29:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-02 12:29:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 106 states have (on average 1.0471698113207548) internal successors, (111), 110 states have internal predecessors, (111), 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 12:29:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2024-11-02 12:29:21,716 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 93 [2024-11-02 12:29:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:21,717 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2024-11-02 12:29:21,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2024-11-02 12:29:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-02 12:29:21,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:21,718 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:21,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-02 12:29:21,719 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:21,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2124847575, now seen corresponding path program 1 times [2024-11-02 12:29:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066009072] [2024-11-02 12:29:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:21,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-02 12:29:21,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:21,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066009072] [2024-11-02 12:29:21,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066009072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:21,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:21,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:29:21,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302654230] [2024-11-02 12:29:21,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:21,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:29:21,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:21,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:29:21,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,793 INFO L87 Difference]: Start difference. First operand 115 states and 117 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:21,882 INFO L93 Difference]: Finished difference Result 115 states and 117 transitions. [2024-11-02 12:29:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:29:21,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 94 [2024-11-02 12:29:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:21,883 INFO L225 Difference]: With dead ends: 115 [2024-11-02 12:29:21,884 INFO L226 Difference]: Without dead ends: 114 [2024-11-02 12:29:21,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:29:21,885 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:21,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-02 12:29:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-02 12:29:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.0377358490566038) internal successors, (110), 109 states have internal predecessors, (110), 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 12:29:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2024-11-02 12:29:21,899 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 94 [2024-11-02 12:29:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:21,900 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2024-11-02 12:29:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 12:29:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2024-11-02 12:29:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 12:29:21,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:21,901 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-02 12:29:21,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-02 12:29:21,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:29:21,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:21,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1726058119, now seen corresponding path program 2 times [2024-11-02 12:29:21,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:21,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084552959] [2024-11-02 12:29:21,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:21,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:29:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481493369] [2024-11-02 12:29:21,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:29:21,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:21,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:21,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:21,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a253fe-2f9f-4aa1-852c-bea9ede81d53/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:29:22,029 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-02 12:29:22,029 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:29:22,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-02 12:29:22,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:29:22,227 INFO L311 TraceCheckSpWp]: Computing backward predicates...