./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/cohencu3-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/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_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/cohencu3-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/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_2d8e4856-bdbf-4395-9ba4-a946465838cb/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 3ca7ce9ebd9ab1a6eee9fc9006cb49cb4f31e2e39b3b21c759320bb8210d6441 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:37:06,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:37:06,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:37:06,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:37:06,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:37:06,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:37:06,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:37:06,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:37:06,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:37:06,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:37:06,178 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:37:06,179 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:37:06,179 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:37:06,182 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:37:06,182 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:37:06,182 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:37:06,183 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:37:06,183 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:37:06,184 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:37:06,184 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:37:06,184 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:37:06,189 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:37:06,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:37:06,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:37:06,190 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:37:06,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:37:06,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:37:06,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:37:06,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:37:06,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:37:06,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:37:06,195 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:37:06,195 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:37:06,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:37:06,196 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:37:06,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:37:06,196 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:37:06,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:37:06,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:37:06,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:37:06,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:06,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:37:06,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:37:06,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:37:06,199 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:37:06,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:37:06,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:37:06,200 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:37:06,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:37:06,200 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_2d8e4856-bdbf-4395-9ba4-a946465838cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ca7ce9ebd9ab1a6eee9fc9006cb49cb4f31e2e39b3b21c759320bb8210d6441 [2024-11-02 12:37:06,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:37:06,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:37:06,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:37:06,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:37:06,542 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:37:06,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/termination-nla/cohencu3-both-nt.c Unable to find full path for "g++" [2024-11-02 12:37:08,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:37:08,771 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:37:08,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/sv-benchmarks/c/termination-nla/cohencu3-both-nt.c [2024-11-02 12:37:08,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/data/0b9f3d989/8278230026be4d94bbf06a605ee27005/FLAG33332c50a [2024-11-02 12:37:08,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/data/0b9f3d989/8278230026be4d94bbf06a605ee27005 [2024-11-02 12:37:08,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:37:08,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:37:08,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:08,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:37:08,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:37:08,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:08" (1/1) ... [2024-11-02 12:37:08,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ae9e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:08, skipping insertion in model container [2024-11-02 12:37:08,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:08" (1/1) ... [2024-11-02 12:37:08,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:09,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:09,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:09,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:09,076 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:09,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09 WrapperNode [2024-11-02 12:37:09,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:09,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:09,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:09,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:09,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,106 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-02 12:37:09,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:09,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:09,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:09,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:09,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:09,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:09,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:09,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:09,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (1/1) ... [2024-11-02 12:37:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:09,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:09,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:09,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:09,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:09,244 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:09,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:09,411 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:09,411 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:09,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:09,434 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:37:09,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:09 BoogieIcfgContainer [2024-11-02 12:37:09,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:09,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:09,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:09,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:09,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:37:08" (1/3) ... [2024-11-02 12:37:09,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b814591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:09, skipping insertion in model container [2024-11-02 12:37:09,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:09" (2/3) ... [2024-11-02 12:37:09,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b814591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:09, skipping insertion in model container [2024-11-02 12:37:09,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:09" (3/3) ... [2024-11-02 12:37:09,444 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu3-both-nt.c [2024-11-02 12:37:09,463 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:09,463 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-02 12:37:09,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:09,535 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;@37527345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:09,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-02 12:37:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 27 states have internal predecessors, (29), 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 12:37:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-02 12:37:09,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:09,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-02 12:37:09,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:09,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:09,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2332, now seen corresponding path program 1 times [2024-11-02 12:37:09,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:09,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241568628] [2024-11-02 12:37:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:09,695 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 12:37:09,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241568628] [2024-11-02 12:37:09,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241568628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:09,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:09,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789735738] [2024-11-02 12:37:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:09,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:37:09,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:09,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:37:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:37:09,739 INFO L87 Difference]: Start difference. First operand has 28 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:09,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:09,767 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2024-11-02 12:37:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:37:09,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-11-02 12:37:09,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:09,788 INFO L225 Difference]: With dead ends: 30 [2024-11-02 12:37:09,793 INFO L226 Difference]: Without dead ends: 25 [2024-11-02 12:37:09,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 12:37:09,811 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:09,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:09,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-02 12:37:09,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-02 12:37:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2024-11-02 12:37:09,853 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 2 [2024-11-02 12:37:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:09,854 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2024-11-02 12:37:09,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2024-11-02 12:37:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:37:09,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:09,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:37:09,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:37:09,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:09,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash 72332, now seen corresponding path program 1 times [2024-11-02 12:37:09,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:09,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822552022] [2024-11-02 12:37:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:09,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:37:09,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258279048] [2024-11-02 12:37:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:09,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:09,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:09,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:09,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:37:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:09,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:37:09,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:09,978 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 12:37:09,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:37:09,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822552022] [2024-11-02 12:37:09,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:37:09,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258279048] [2024-11-02 12:37:09,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258279048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:09,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:09,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:09,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161965025] [2024-11-02 12:37:09,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:09,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:09,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:09,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:09,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:09,988 INFO L87 Difference]: Start difference. First operand 25 states and 25 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 12:37:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:10,065 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2024-11-02 12:37:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:10,066 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 12:37:10,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:10,067 INFO L225 Difference]: With dead ends: 37 [2024-11-02 12:37:10,067 INFO L226 Difference]: Without dead ends: 32 [2024-11-02 12:37:10,067 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 12:37:10,068 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:10,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:10,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-02 12:37:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-02 12:37:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 31 states have internal predecessors, (32), 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 12:37:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2024-11-02 12:37:10,079 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 3 [2024-11-02 12:37:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:10,080 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2024-11-02 12:37:10,080 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 12:37:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2024-11-02 12:37:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 12:37:10,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:10,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:10,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:37:10,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:10,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:10,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:10,285 INFO L85 PathProgramCache]: Analyzing trace with hash -715349486, now seen corresponding path program 1 times [2024-11-02 12:37:10,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:10,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21408282] [2024-11-02 12:37:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:10,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:10,411 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 12:37:10,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:10,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21408282] [2024-11-02 12:37:10,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21408282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:10,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:10,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:10,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891532730] [2024-11-02 12:37:10,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:10,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:10,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:10,417 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:10,459 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2024-11-02 12:37:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-02 12:37:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:10,461 INFO L225 Difference]: With dead ends: 35 [2024-11-02 12:37:10,461 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 12:37:10,461 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 12:37:10,463 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:10,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 12:37:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2024-11-02 12:37:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.5) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2024-11-02 12:37:10,472 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2024-11-02 12:37:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:10,473 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2024-11-02 12:37:10,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2024-11-02 12:37:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:37:10,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:10,474 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:10,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:37:10,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:10,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash -700997529, now seen corresponding path program 1 times [2024-11-02 12:37:10,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843346614] [2024-11-02 12:37:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:10,562 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 12:37:10,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:10,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843346614] [2024-11-02 12:37:10,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843346614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:10,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:10,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:10,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127798207] [2024-11-02 12:37:10,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:10,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:10,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:10,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:10,565 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:10,601 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2024-11-02 12:37:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:10,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-02 12:37:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:10,607 INFO L225 Difference]: With dead ends: 35 [2024-11-02 12:37:10,607 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 12:37:10,607 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 12:37:10,609 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:10,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 12:37:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-02 12:37:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2024-11-02 12:37:10,626 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 10 [2024-11-02 12:37:10,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:10,627 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2024-11-02 12:37:10,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2024-11-02 12:37:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:37:10,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:10,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:10,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:37:10,635 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:10,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:10,635 INFO L85 PathProgramCache]: Analyzing trace with hash -256086860, now seen corresponding path program 1 times [2024-11-02 12:37:10,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:10,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010600376] [2024-11-02 12:37:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:10,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:10,778 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 12:37:10,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010600376] [2024-11-02 12:37:10,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010600376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:10,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:10,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:10,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945224647] [2024-11-02 12:37:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:10,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:10,786 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 12:37:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:10,847 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-11-02 12:37:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:10,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 12:37:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:10,853 INFO L225 Difference]: With dead ends: 37 [2024-11-02 12:37:10,853 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 12:37:10,853 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 12:37:10,858 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:10,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:10,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 12:37:10,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-11-02 12:37:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-11-02 12:37:10,864 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 11 [2024-11-02 12:37:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:10,864 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-11-02 12:37:10,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 12:37:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-11-02 12:37:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 12:37:10,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:10,866 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:10,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:37:10,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:10,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 651241993, now seen corresponding path program 1 times [2024-11-02 12:37:10,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:10,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954271641] [2024-11-02 12:37:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:10,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:10,917 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 12:37:10,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:10,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954271641] [2024-11-02 12:37:10,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954271641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:10,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:10,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:10,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395106538] [2024-11-02 12:37:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:10,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:10,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:10,920 INFO L87 Difference]: Start difference. First operand 35 states and 35 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 12:37:10,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:10,968 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2024-11-02 12:37:10,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:10,968 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 12:37:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:10,969 INFO L225 Difference]: With dead ends: 37 [2024-11-02 12:37:10,969 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 12:37:10,970 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 12:37:10,970 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 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 12:37:10,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 12:37:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-02 12:37:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.44) internal successors, (36), 35 states have internal predecessors, (36), 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 12:37:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2024-11-02 12:37:10,976 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 12 [2024-11-02 12:37:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:10,976 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2024-11-02 12:37:10,977 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 12:37:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2024-11-02 12:37:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 12:37:10,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:10,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:10,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:37:10,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1286334634, now seen corresponding path program 1 times [2024-11-02 12:37:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665309262] [2024-11-02 12:37:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:11,064 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 12:37:11,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:11,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665309262] [2024-11-02 12:37:11,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665309262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:11,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:11,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:11,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425185004] [2024-11-02 12:37:11,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:11,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:11,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:11,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:11,074 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 12:37:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:11,119 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2024-11-02 12:37:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:11,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2024-11-02 12:37:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:11,120 INFO L225 Difference]: With dead ends: 36 [2024-11-02 12:37:11,120 INFO L226 Difference]: Without dead ends: 35 [2024-11-02 12:37:11,121 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 12:37:11,122 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:11,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-02 12:37:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-02 12:37:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.4) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-11-02 12:37:11,156 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 13 [2024-11-02 12:37:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:11,160 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-11-02 12:37:11,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 12:37:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-11-02 12:37:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:37:11,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:11,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:11,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:37:11,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:11,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1221667925, now seen corresponding path program 1 times [2024-11-02 12:37:11,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:11,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452462355] [2024-11-02 12:37:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:11,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:11,233 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 12:37:11,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452462355] [2024-11-02 12:37:11,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452462355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:11,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:37:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017797970] [2024-11-02 12:37:11,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:11,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:11,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:11,238 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:11,282 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2024-11-02 12:37:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-02 12:37:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:11,284 INFO L225 Difference]: With dead ends: 38 [2024-11-02 12:37:11,284 INFO L226 Difference]: Without dead ends: 37 [2024-11-02 12:37:11,284 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 12:37:11,285 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:11,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-02 12:37:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-02 12:37:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 36 states have internal predecessors, (37), 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 12:37:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2024-11-02 12:37:11,298 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 14 [2024-11-02 12:37:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:11,298 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2024-11-02 12:37:11,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2024-11-02 12:37:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:37:11,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:11,301 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:11,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 12:37:11,302 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:11,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1496802899, now seen corresponding path program 1 times [2024-11-02 12:37:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:11,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117348897] [2024-11-02 12:37:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:11,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:37:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990987761] [2024-11-02 12:37:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:11,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:11,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:11,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:11,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:37:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:11,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:37:11,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:11,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:11,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117348897] [2024-11-02 12:37:11,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:37:11,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990987761] [2024-11-02 12:37:11,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990987761] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:11,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [442513670] [2024-11-02 12:37:11,624 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:11,624 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:11,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:11,632 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:11,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:12,306 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:12,972 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '740#(exists ((|v_ULTIMATE.start_main_~n~0#1_32| Int)) (and (<= 1 |v_ULTIMATE.start_main_~n~0#1_32|) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~z~0#1| (+ 5 |ULTIMATE.start_main_~y~0#1|)) (<= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 12 |ULTIMATE.start_main_~z~0#1|) (<= |v_ULTIMATE.start_main_~n~0#1_32| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~n~0#1_32| |v_ULTIMATE.start_main_~n~0#1_32|))))' at error location [2024-11-02 12:37:12,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:12,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 12:37:12,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2024-11-02 12:37:12,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341782485] [2024-11-02 12:37:12,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:12,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:37:12,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:12,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:37:12,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-02 12:37:12,974 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 12:37:13,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:13,071 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2024-11-02 12:37:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:37:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 12:37:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:13,072 INFO L225 Difference]: With dead ends: 61 [2024-11-02 12:37:13,072 INFO L226 Difference]: Without dead ends: 56 [2024-11-02 12:37:13,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-02 12:37:13,074 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:13,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 44 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-02 12:37:13,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 38. [2024-11-02 12:37:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 37 states have internal predecessors, (38), 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 12:37:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2024-11-02 12:37:13,079 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 16 [2024-11-02 12:37:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:13,079 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2024-11-02 12:37:13,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 12:37:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2024-11-02 12:37:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 12:37:13,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:13,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:13,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:37:13,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:13,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:13,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:13,283 INFO L85 PathProgramCache]: Analyzing trace with hash 334922867, now seen corresponding path program 1 times [2024-11-02 12:37:13,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:13,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994240889] [2024-11-02 12:37:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:13,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:13,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:13,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994240889] [2024-11-02 12:37:13,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994240889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:13,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727886456] [2024-11-02 12:37:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:13,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:13,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:13,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:13,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:37:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:13,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:37:13,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:13,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:13,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727886456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2079503083] [2024-11-02 12:37:13,836 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:13,836 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:13,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:13,837 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:13,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:14,272 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:14,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2079503083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:14,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 16 [2024-11-02 12:37:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002656716] [2024-11-02 12:37:14,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:14,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-02 12:37:14,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-02 12:37:14,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-02 12:37:14,891 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:15,276 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2024-11-02 12:37:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 12:37:15,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-02 12:37:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:15,278 INFO L225 Difference]: With dead ends: 38 [2024-11-02 12:37:15,278 INFO L226 Difference]: Without dead ends: 35 [2024-11-02 12:37:15,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2024-11-02 12:37:15,279 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:15,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-02 12:37:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-02 12:37:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-11-02 12:37:15,285 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2024-11-02 12:37:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:15,285 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-11-02 12:37:15,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:37:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-11-02 12:37:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 12:37:15,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:15,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:15,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:37:15,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-02 12:37:15,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:15,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:15,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1792674342, now seen corresponding path program 1 times [2024-11-02 12:37:15,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:15,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128709429] [2024-11-02 12:37:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:15,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:15,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:15,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128709429] [2024-11-02 12:37:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128709429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:15,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863404159] [2024-11-02 12:37:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:15,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:15,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:15,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:15,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:37:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:15,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:37:15,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:15,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:15,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863404159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:15,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [951924158] [2024-11-02 12:37:15,916 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:15,917 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:15,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:15,918 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:15,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:16,215 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:16,827 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1232#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-02 12:37:16,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:16,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:16,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-02 12:37:16,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747123811] [2024-11-02 12:37:16,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:16,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-02 12:37:16,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-02 12:37:16,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-02 12:37:16,829 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 12:37:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:16,929 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2024-11-02 12:37:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:37:16,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 23 [2024-11-02 12:37:16,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:16,930 INFO L225 Difference]: With dead ends: 43 [2024-11-02 12:37:16,930 INFO L226 Difference]: Without dead ends: 42 [2024-11-02 12:37:16,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-02 12:37:16,931 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:16,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 53 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-02 12:37:16,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2024-11-02 12:37:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 39 states have internal predecessors, (40), 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 12:37:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2024-11-02 12:37:16,936 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 23 [2024-11-02 12:37:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:16,937 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2024-11-02 12:37:16,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 12:37:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2024-11-02 12:37:16,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:37:16,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:16,938 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-02 12:37:16,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 12:37:17,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-02 12:37:17,139 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:17,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash 478158856, now seen corresponding path program 1 times [2024-11-02 12:37:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:17,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313815532] [2024-11-02 12:37:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:17,232 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 12:37:17,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:17,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313815532] [2024-11-02 12:37:17,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313815532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:17,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409002085] [2024-11-02 12:37:17,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:17,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:17,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:17,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:17,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:37:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:17,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:37:17,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:17,436 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 12:37:17,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:17,523 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 12:37:17,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409002085] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:17,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [576352944] [2024-11-02 12:37:17,526 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:17,527 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:17,527 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:17,528 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:17,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:17,781 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:18,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1488#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-02 12:37:18,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:18,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:18,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-02 12:37:18,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439858271] [2024-11-02 12:37:18,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:18,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-02 12:37:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:18,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-02 12:37:18,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-02 12:37:18,392 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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 12:37:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:18,492 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2024-11-02 12:37:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:37:18,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-02 12:37:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:18,494 INFO L225 Difference]: With dead ends: 57 [2024-11-02 12:37:18,494 INFO L226 Difference]: Without dead ends: 56 [2024-11-02 12:37:18,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-02 12:37:18,495 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:18,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 72 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-02 12:37:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-11-02 12:37:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 54 states have internal predecessors, (58), 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 12:37:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2024-11-02 12:37:18,501 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 25 [2024-11-02 12:37:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:18,501 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2024-11-02 12:37:18,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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 12:37:18,501 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2024-11-02 12:37:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 12:37:18,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:18,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-02 12:37:18,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 12:37:18,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-02 12:37:18,703 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:18,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash -50838038, now seen corresponding path program 1 times [2024-11-02 12:37:18,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:18,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384370671] [2024-11-02 12:37:18,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:18,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:18,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384370671] [2024-11-02 12:37:18,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384370671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:18,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367234804] [2024-11-02 12:37:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:18,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:18,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:18,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:18,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:37:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:18,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:37:18,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:18,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367234804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1317638027] [2024-11-02 12:37:18,947 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:18,948 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:18,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:18,948 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:18,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:19,169 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:19,724 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1782#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 2147483643 |ULTIMATE.start_main_~y~0#1|))' at error location [2024-11-02 12:37:19,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:19,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-02 12:37:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868650912] [2024-11-02 12:37:19,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:19,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:37:19,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:19,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:37:19,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-02 12:37:19,728 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 12:37:19,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:19,777 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2024-11-02 12:37:19,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:37:19,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-02 12:37:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:19,779 INFO L225 Difference]: With dead ends: 75 [2024-11-02 12:37:19,779 INFO L226 Difference]: Without dead ends: 74 [2024-11-02 12:37:19,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-02 12:37:19,780 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:19,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:19,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-02 12:37:19,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2024-11-02 12:37:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 69 states have internal predecessors, (75), 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 12:37:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2024-11-02 12:37:19,794 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 27 [2024-11-02 12:37:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:19,794 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2024-11-02 12:37:19,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 12:37:19,795 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2024-11-02 12:37:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:37:19,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:19,798 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-02 12:37:19,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 12:37:19,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-02 12:37:19,999 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1707007378, now seen corresponding path program 1 times [2024-11-02 12:37:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216587043] [2024-11-02 12:37:19,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:37:20,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693742569] [2024-11-02 12:37:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:20,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:20,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:20,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:20,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:37:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:20,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:37:20,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:20,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:20,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:20,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216587043] [2024-11-02 12:37:20,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:37:20,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693742569] [2024-11-02 12:37:20,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693742569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:20,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1890697834] [2024-11-02 12:37:20,442 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:20,442 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:20,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:20,443 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:20,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:20,713 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:21,277 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2133#(and (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~n~0#1_65| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~n~0#1_65| |v_ULTIMATE.start_main_~n~0#1_65| |v_ULTIMATE.start_main_~n~0#1_65|)) (<= |v_ULTIMATE.start_main_~n~0#1_65| 2147483647))) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483634)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-02 12:37:21,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:21,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 12:37:21,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-11-02 12:37:21,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517613839] [2024-11-02 12:37:21,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:21,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:37:21,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:37:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-02 12:37:21,282 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 12:37:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:21,395 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2024-11-02 12:37:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:37:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 31 [2024-11-02 12:37:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:21,397 INFO L225 Difference]: With dead ends: 94 [2024-11-02 12:37:21,397 INFO L226 Difference]: Without dead ends: 93 [2024-11-02 12:37:21,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-02 12:37:21,398 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:21,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 64 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-02 12:37:21,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 87. [2024-11-02 12:37:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.1204819277108433) internal successors, (93), 86 states have internal predecessors, (93), 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 12:37:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2024-11-02 12:37:21,415 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 31 [2024-11-02 12:37:21,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:21,419 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2024-11-02 12:37:21,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 12:37:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2024-11-02 12:37:21,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-02 12:37:21,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:21,420 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-02 12:37:21,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:37:21,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:21,621 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:21,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1772334791, now seen corresponding path program 2 times [2024-11-02 12:37:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:21,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141190496] [2024-11-02 12:37:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:21,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141190496] [2024-11-02 12:37:21,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141190496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129607794] [2024-11-02 12:37:21,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:37:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:21,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:21,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:37:21,791 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-02 12:37:21,792 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:37:21,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:37:21,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:22,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:22,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129607794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:22,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223001264] [2024-11-02 12:37:22,281 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:22,281 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:22,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:22,282 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:22,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:22,538 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:23,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2566#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-02 12:37:23,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:23,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:23,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 18 [2024-11-02 12:37:23,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678417949] [2024-11-02 12:37:23,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:23,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-02 12:37:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:23,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-02 12:37:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2024-11-02 12:37:23,358 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 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 12:37:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:23,579 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2024-11-02 12:37:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-02 12:37:23,580 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 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 36 [2024-11-02 12:37:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:23,580 INFO L225 Difference]: With dead ends: 88 [2024-11-02 12:37:23,581 INFO L226 Difference]: Without dead ends: 87 [2024-11-02 12:37:23,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 75 SyntacticMatches, 11 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2024-11-02 12:37:23,582 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:23,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 112 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:23,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-02 12:37:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-02 12:37:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 86 states have internal predecessors, (91), 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 12:37:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2024-11-02 12:37:23,592 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 36 [2024-11-02 12:37:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:23,592 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2024-11-02 12:37:23,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 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 12:37:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2024-11-02 12:37:23,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-02 12:37:23,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:23,594 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1] [2024-11-02 12:37:23,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 12:37:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:23,799 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-02 12:37:23,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1416201640, now seen corresponding path program 2 times [2024-11-02 12:37:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:23,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48911834] [2024-11-02 12:37:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:23,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48911834] [2024-11-02 12:37:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48911834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598011899] [2024-11-02 12:37:23,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:37:23,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:23,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:23,967 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:23,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d8e4856-bdbf-4395-9ba4-a946465838cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process