./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/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_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/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 64bit --witnessprinter.graph.data.programhash 1ae4a3f744c0a8577333c2c3dfb4ecaabbd2cf6e1675b06577194a98b8d1aee1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:19,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:19,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-02 11:25:19,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:19,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:19,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:19,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:19,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:19,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:19,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:19,269 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:19,269 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:19,270 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:19,270 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:19,271 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:19,271 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:19,271 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:19,272 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:19,273 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:19,273 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:19,273 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:19,274 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:19,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:19,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:19,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:19,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:19,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:19,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:19,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:19,277 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:19,278 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:25:19,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:25:19,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:19,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:19,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:19,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:19,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:19,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:19,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:19,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:19,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:19,282 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:19,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:19,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:19,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:19,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:19,283 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_9d658106-b070-430a-92cc-9e1bc4760369/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae4a3f744c0a8577333c2c3dfb4ecaabbd2cf6e1675b06577194a98b8d1aee1 [2024-11-02 11:25:19,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:19,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:19,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:19,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:19,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:19,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i Unable to find full path for "g++" [2024-11-02 11:25:21,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:22,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:22,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i [2024-11-02 11:25:22,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/data/5d53f817e/f6072cf0229d454190989d902ccae12c/FLAGcf8a7d08f [2024-11-02 11:25:22,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/data/5d53f817e/f6072cf0229d454190989d902ccae12c [2024-11-02 11:25:22,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:22,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:22,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:22,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:22,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:22,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5064f9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22, skipping insertion in model container [2024-11-02 11:25:22,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:22,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:22,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:22,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:22,383 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:22,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22 WrapperNode [2024-11-02 11:25:22,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:22,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:22,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:22,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:22,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,422 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-02 11:25:22,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:22,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:22,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:22,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:22,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:22,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:22,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:22,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:22,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (1/1) ... [2024-11-02 11:25:22,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:22,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:22,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:22,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:25:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:25:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure insertionSort [2024-11-02 11:25:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure insertionSort [2024-11-02 11:25:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:25:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:25:22,689 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:22,692 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:22,960 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:22,960 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:23,020 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:23,021 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-02 11:25:23,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:23 BoogieIcfgContainer [2024-11-02 11:25:23,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:23,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:23,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:23,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:23,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:22" (1/3) ... [2024-11-02 11:25:23,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2a67be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:23, skipping insertion in model container [2024-11-02 11:25:23,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:22" (2/3) ... [2024-11-02 11:25:23,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2a67be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:23, skipping insertion in model container [2024-11-02 11:25:23,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:23" (3/3) ... [2024-11-02 11:25:23,036 INFO L112 eAbstractionObserver]: Analyzing ICFG insertionSort_recursive.i [2024-11-02 11:25:23,059 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:23,059 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-02 11:25:23,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:23,144 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;@58c890c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:23,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-02 11:25:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 11:25:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 11:25:23,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:23,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 11:25:23,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:23,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash 3480497, now seen corresponding path program 1 times [2024-11-02 11:25:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:23,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765010204] [2024-11-02 11:25:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:23,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:23,496 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 11:25:23,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:23,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765010204] [2024-11-02 11:25:23,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765010204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:23,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:23,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:23,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175381283] [2024-11-02 11:25:23,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:23,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:25:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:25:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:23,555 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:23,629 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2024-11-02 11:25:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:25:23,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-02 11:25:23,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:23,642 INFO L225 Difference]: With dead ends: 71 [2024-11-02 11:25:23,642 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 11:25:23,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:23,650 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:23,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 11:25:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-02 11:25:23,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 32 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2024-11-02 11:25:23,692 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 4 [2024-11-02 11:25:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:23,692 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2024-11-02 11:25:23,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-11-02 11:25:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:25:23,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:23,696 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-02 11:25:23,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:25:23,698 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:23,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:23,699 INFO L85 PathProgramCache]: Analyzing trace with hash 608368800, now seen corresponding path program 1 times [2024-11-02 11:25:23,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:23,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641036315] [2024-11-02 11:25:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:23,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:23,914 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 11:25:23,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641036315] [2024-11-02 11:25:23,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641036315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:23,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256410826] [2024-11-02 11:25:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:23,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:23,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:23,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:25:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:24,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:25:24,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:25:24,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256410826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:24,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:25:24,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-02 11:25:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339559417] [2024-11-02 11:25:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:24,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:25:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:25:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:25:24,093 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:24,149 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-02 11:25:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:25:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-02 11:25:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:24,150 INFO L225 Difference]: With dead ends: 34 [2024-11-02 11:25:24,151 INFO L226 Difference]: Without dead ends: 33 [2024-11-02 11:25:24,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:25:24,154 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:24,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-02 11:25:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-02 11:25:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:24,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2024-11-02 11:25:24,162 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 7 [2024-11-02 11:25:24,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:24,162 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2024-11-02 11:25:24,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2024-11-02 11:25:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 11:25:24,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:24,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-02 11:25:24,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 11:25:24,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:24,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:24,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:24,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1679563714, now seen corresponding path program 1 times [2024-11-02 11:25:24,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:24,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728464752] [2024-11-02 11:25:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:25:24,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:24,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728464752] [2024-11-02 11:25:24,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728464752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:24,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336758622] [2024-11-02 11:25:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:24,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:24,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:24,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:24,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 11:25:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:24,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:25:24,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:25:24,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:25:24,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336758622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:24,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1456336796] [2024-11-02 11:25:24,835 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-02 11:25:24,836 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:25:24,839 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:25:24,847 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:25:24,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 11:25:25,524 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 11:25:25,705 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '327#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-02 11:25:25,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 11:25:25,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:25:25,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-02 11:25:25,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334650864] [2024-11-02 11:25:25,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:25,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 11:25:25,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 11:25:25,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-02 11:25:25,711 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:25,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:25,795 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-11-02 11:25:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:25:25,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-02 11:25:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:25,797 INFO L225 Difference]: With dead ends: 43 [2024-11-02 11:25:25,797 INFO L226 Difference]: Without dead ends: 42 [2024-11-02 11:25:25,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-02 11:25:25,799 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:25,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-02 11:25:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-02 11:25:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 40 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2024-11-02 11:25:25,808 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2024-11-02 11:25:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:25,809 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2024-11-02 11:25:25,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2024-11-02 11:25:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 11:25:25,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:25,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:25,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 11:25:26,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:26,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:26,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:26,012 INFO L85 PathProgramCache]: Analyzing trace with hash 117481961, now seen corresponding path program 1 times [2024-11-02 11:25:26,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:26,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376806079] [2024-11-02 11:25:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:26,157 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 11:25:26,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:26,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376806079] [2024-11-02 11:25:26,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376806079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:26,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:26,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:26,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559474265] [2024-11-02 11:25:26,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:26,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:25:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:25:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:26,159 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:26,179 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2024-11-02 11:25:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:25:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 11:25:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:26,184 INFO L225 Difference]: With dead ends: 66 [2024-11-02 11:25:26,184 INFO L226 Difference]: Without dead ends: 42 [2024-11-02 11:25:26,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:25:26,185 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:26,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-02 11:25:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-02 11:25:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 40 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-02 11:25:26,196 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 9 [2024-11-02 11:25:26,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:26,197 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-02 11:25:26,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-11-02 11:25:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 11:25:26,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:26,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:26,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 11:25:26,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:26,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1695711834, now seen corresponding path program 1 times [2024-11-02 11:25:26,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4547568] [2024-11-02 11:25:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:26,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4547568] [2024-11-02 11:25:26,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4547568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:26,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:26,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:25:26,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866179202] [2024-11-02 11:25:26,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:26,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:25:26,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:26,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:25:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:25:26,333 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:26,450 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2024-11-02 11:25:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:25:26,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 11:25:26,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:26,452 INFO L225 Difference]: With dead ends: 77 [2024-11-02 11:25:26,454 INFO L226 Difference]: Without dead ends: 71 [2024-11-02 11:25:26,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:25:26,456 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 68 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:26,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 82 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-02 11:25:26,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2024-11-02 11:25:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 60 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2024-11-02 11:25:26,471 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 12 [2024-11-02 11:25:26,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:26,471 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2024-11-02 11:25:26,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2024-11-02 11:25:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 11:25:26,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:26,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:26,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 11:25:26,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting insertionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:26,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash -448194396, now seen corresponding path program 1 times [2024-11-02 11:25:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:26,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777432903] [2024-11-02 11:25:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:26,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777432903] [2024-11-02 11:25:26,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777432903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:26,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:26,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:26,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953333763] [2024-11-02 11:25:26,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:26,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:25:26,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:26,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:25:26,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:26,526 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:26,556 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2024-11-02 11:25:26,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:25:26,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-02 11:25:26,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:26,557 INFO L225 Difference]: With dead ends: 103 [2024-11-02 11:25:26,557 INFO L226 Difference]: Without dead ends: 66 [2024-11-02 11:25:26,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:25:26,559 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 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 11:25:26,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:26,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-02 11:25:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-11-02 11:25:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 54 states have (on average 1.462962962962963) internal successors, (79), 62 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 81 transitions. [2024-11-02 11:25:26,575 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 81 transitions. Word has length 15 [2024-11-02 11:25:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:26,575 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 81 transitions. [2024-11-02 11:25:26,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2024-11-02 11:25:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 11:25:26,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:26,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:26,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 11:25:26,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting insertionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:26,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1749511136, now seen corresponding path program 1 times [2024-11-02 11:25:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:26,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346377057] [2024-11-02 11:25:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:26,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346377057] [2024-11-02 11:25:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346377057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:26,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:26,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 11:25:26,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896589276] [2024-11-02 11:25:26,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:26,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:25:26,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:25:26,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:25:26,724 INFO L87 Difference]: Start difference. First operand 65 states and 81 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:26,841 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2024-11-02 11:25:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 11:25:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-02 11:25:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:26,842 INFO L225 Difference]: With dead ends: 94 [2024-11-02 11:25:26,842 INFO L226 Difference]: Without dead ends: 52 [2024-11-02 11:25:26,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-02 11:25:26,843 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:26,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 97 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-02 11:25:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2024-11-02 11:25:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.375) internal successors, (55), 48 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2024-11-02 11:25:26,855 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 17 [2024-11-02 11:25:26,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:26,855 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2024-11-02 11:25:26,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:26,855 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-11-02 11:25:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 11:25:26,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:26,856 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-02 11:25:26,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 11:25:26,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:26,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash -955437167, now seen corresponding path program 2 times [2024-11-02 11:25:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203467805] [2024-11-02 11:25:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:25:27,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203467805] [2024-11-02 11:25:27,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203467805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657472378] [2024-11-02 11:25:27,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 11:25:27,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:27,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:27,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:27,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 11:25:27,153 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-02 11:25:27,153 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 11:25:27,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 11:25:27,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 11:25:27,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 11:25:27,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657472378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:27,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [791701988] [2024-11-02 11:25:27,262 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-02 11:25:27,262 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:25:27,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:25:27,263 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:25:27,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 11:25:27,594 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 11:25:28,027 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1234#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-02 11:25:28,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 11:25:28,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:25:28,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 13 [2024-11-02 11:25:28,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270311446] [2024-11-02 11:25:28,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:28,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 11:25:28,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 11:25:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-02 11:25:28,030 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 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 11:25:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:28,263 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2024-11-02 11:25:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 11:25:28,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-02 11:25:28,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:28,264 INFO L225 Difference]: With dead ends: 54 [2024-11-02 11:25:28,264 INFO L226 Difference]: Without dead ends: 53 [2024-11-02 11:25:28,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=654, Unknown=0, NotChecked=0, Total=812 [2024-11-02 11:25:28,266 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:28,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 125 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-02 11:25:28,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39. [2024-11-02 11:25:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 36 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-11-02 11:25:28,271 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2024-11-02 11:25:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:28,271 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-11-02 11:25:28,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 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 11:25:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-11-02 11:25:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 11:25:28,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:28,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:28,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 11:25:28,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:28,476 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:28,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:28,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2122558976, now seen corresponding path program 1 times [2024-11-02 11:25:28,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:28,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494303437] [2024-11-02 11:25:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 11:25:28,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:28,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494303437] [2024-11-02 11:25:28,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494303437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:28,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:28,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:28,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504753156] [2024-11-02 11:25:28,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:28,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:25:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:28,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:25:28,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:28,644 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:28,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:28,685 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-11-02 11:25:28,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:25:28,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-02 11:25:28,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:28,686 INFO L225 Difference]: With dead ends: 40 [2024-11-02 11:25:28,686 INFO L226 Difference]: Without dead ends: 38 [2024-11-02 11:25:28,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:28,690 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:28,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-02 11:25:28,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2024-11-02 11:25:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:28,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-11-02 11:25:28,695 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 21 [2024-11-02 11:25:28,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:28,696 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-11-02 11:25:28,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-11-02 11:25:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 11:25:28,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:28,701 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 11:25:28,701 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:28,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1374818860, now seen corresponding path program 1 times [2024-11-02 11:25:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070922545] [2024-11-02 11:25:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:28,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:28,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070922545] [2024-11-02 11:25:28,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070922545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724913578] [2024-11-02 11:25:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:28,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:28,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:28,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:28,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 11:25:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:28,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 11:25:28,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:28,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:28,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724913578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:28,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:25:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-02 11:25:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967735262] [2024-11-02 11:25:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:28,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:25:28,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:25:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-02 11:25:28,971 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:29,079 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2024-11-02 11:25:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:25:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 11:25:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:29,080 INFO L225 Difference]: With dead ends: 37 [2024-11-02 11:25:29,080 INFO L226 Difference]: Without dead ends: 35 [2024-11-02 11:25:29,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-02 11:25:29,081 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 41 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:29,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 39 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-02 11:25:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-02 11:25:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-02 11:25:29,093 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 22 [2024-11-02 11:25:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:29,093 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-02 11:25:29,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-02 11:25:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 11:25:29,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:29,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:29,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:29,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:29,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting insertionSortErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:29,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:29,296 INFO L85 PathProgramCache]: Analyzing trace with hash -330101116, now seen corresponding path program 1 times [2024-11-02 11:25:29,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:29,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060979247] [2024-11-02 11:25:29,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:29,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:29,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:29,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060979247] [2024-11-02 11:25:29,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060979247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235754839] [2024-11-02 11:25:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:29,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:29,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:29,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 11:25:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:29,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:25:29,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:29,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235754839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:29,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:25:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-02 11:25:29,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337698373] [2024-11-02 11:25:29,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:29,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:25:29,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:25:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:25:29,563 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:29,629 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-11-02 11:25:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:25:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 11:25:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:29,630 INFO L225 Difference]: With dead ends: 35 [2024-11-02 11:25:29,630 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 11:25:29,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-02 11:25:29,631 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:29,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 46 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 11:25:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-02 11:25:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.206896551724138) internal successors, (35), 31 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2024-11-02 11:25:29,635 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 23 [2024-11-02 11:25:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:29,636 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2024-11-02 11:25:29,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2024-11-02 11:25:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 11:25:29,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:29,637 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:29,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:29,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:29,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting insertionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:29,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1643199934, now seen corresponding path program 1 times [2024-11-02 11:25:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939515579] [2024-11-02 11:25:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 11:25:29,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939515579] [2024-11-02 11:25:29,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939515579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:29,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:29,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:25:29,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836025997] [2024-11-02 11:25:29,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:29,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:25:29,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:29,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:25:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:25:29,934 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:30,023 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2024-11-02 11:25:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:25:30,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-02 11:25:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:30,024 INFO L225 Difference]: With dead ends: 47 [2024-11-02 11:25:30,024 INFO L226 Difference]: Without dead ends: 46 [2024-11-02 11:25:30,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:25:30,025 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:30,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 47 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-02 11:25:30,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2024-11-02 11:25:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-02 11:25:30,044 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2024-11-02 11:25:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:30,044 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-02 11:25:30,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-02 11:25:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 11:25:30,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:30,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:30,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-02 11:25:30,046 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting insertionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:30,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:30,049 INFO L85 PathProgramCache]: Analyzing trace with hash 152884990, now seen corresponding path program 1 times [2024-11-02 11:25:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144298588] [2024-11-02 11:25:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:30,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:30,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144298588] [2024-11-02 11:25:30,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144298588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:30,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124750674] [2024-11-02 11:25:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:30,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:30,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:30,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:30,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 11:25:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:30,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 11:25:30,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:30,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:25:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124750674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [452047317] [2024-11-02 11:25:30,362 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-02 11:25:30,362 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:25:30,363 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-02 11:25:30,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:25:30,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-02 11:25:30,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549265522] [2024-11-02 11:25:30,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:30,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 11:25:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:30,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 11:25:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-02 11:25:30,368 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 14 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:30,501 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2024-11-02 11:25:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:25:30,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-02 11:25:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:30,502 INFO L225 Difference]: With dead ends: 90 [2024-11-02 11:25:30,503 INFO L226 Difference]: Without dead ends: 89 [2024-11-02 11:25:30,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-02 11:25:30,504 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 94 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:30,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 173 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:25:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-02 11:25:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 68. [2024-11-02 11:25:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 63 states have internal predecessors, (76), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2024-11-02 11:25:30,516 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 26 [2024-11-02 11:25:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:30,516 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2024-11-02 11:25:30,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.545454545454546) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2024-11-02 11:25:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 11:25:30,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:30,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:30,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:30,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:30,722 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting insertionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:30,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash 152934394, now seen corresponding path program 1 times [2024-11-02 11:25:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:30,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817676098] [2024-11-02 11:25:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:30,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 11:25:30,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:30,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817676098] [2024-11-02 11:25:30,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817676098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:30,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:30,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:30,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289586291] [2024-11-02 11:25:30,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:30,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:25:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:30,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:25:30,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:30,776 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:30,813 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2024-11-02 11:25:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:25:30,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-02 11:25:30,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:30,814 INFO L225 Difference]: With dead ends: 71 [2024-11-02 11:25:30,814 INFO L226 Difference]: Without dead ends: 70 [2024-11-02 11:25:30,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:30,815 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:30,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-02 11:25:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2024-11-02 11:25:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2024-11-02 11:25:30,821 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 26 [2024-11-02 11:25:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:30,822 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2024-11-02 11:25:30,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2024-11-02 11:25:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 11:25:30,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:30,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:30,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-02 11:25:30,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting insertionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:30,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:30,823 INFO L85 PathProgramCache]: Analyzing trace with hash 445998980, now seen corresponding path program 1 times [2024-11-02 11:25:30,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859396589] [2024-11-02 11:25:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:30,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 11:25:30,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:30,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859396589] [2024-11-02 11:25:30,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859396589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:30,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:30,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037500360] [2024-11-02 11:25:30,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:30,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:25:30,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:30,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:25:30,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:30,873 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:30,912 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2024-11-02 11:25:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:25:30,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 11:25:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:30,914 INFO L225 Difference]: With dead ends: 81 [2024-11-02 11:25:30,914 INFO L226 Difference]: Without dead ends: 80 [2024-11-02 11:25:30,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:25:30,915 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 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 11:25:30,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-02 11:25:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2024-11-02 11:25:30,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2024-11-02 11:25:30,921 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 27 [2024-11-02 11:25:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:30,921 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2024-11-02 11:25:30,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2024-11-02 11:25:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-02 11:25:30,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:30,923 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:30,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-02 11:25:30,923 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting insertionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:30,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash -346111554, now seen corresponding path program 2 times [2024-11-02 11:25:30,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:30,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416065402] [2024-11-02 11:25:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:30,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 11:25:31,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:31,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416065402] [2024-11-02 11:25:31,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416065402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:31,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841687443] [2024-11-02 11:25:31,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 11:25:31,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:31,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:31,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:31,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 11:25:31,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-02 11:25:31,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 11:25:31,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 11:25:31,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 11:25:31,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 11:25:31,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841687443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:31,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707762556] [2024-11-02 11:25:31,573 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-02 11:25:31,573 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:25:31,574 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-02 11:25:31,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:25:31,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 23 [2024-11-02 11:25:31,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262971781] [2024-11-02 11:25:31,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:31,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-02 11:25:31,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:31,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-02 11:25:31,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-02 11:25:31,579 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand has 23 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 6 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:32,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:32,257 INFO L93 Difference]: Finished difference Result 242 states and 277 transitions. [2024-11-02 11:25:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-02 11:25:32,258 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 6 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-02 11:25:32,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:32,259 INFO L225 Difference]: With dead ends: 242 [2024-11-02 11:25:32,259 INFO L226 Difference]: Without dead ends: 182 [2024-11-02 11:25:32,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=306, Invalid=1500, Unknown=0, NotChecked=0, Total=1806 [2024-11-02 11:25:32,261 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 176 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:32,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 116 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:25:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-02 11:25:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 73. [2024-11-02 11:25:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 68 states have (on average 1.161764705882353) internal successors, (79), 68 states have internal predecessors, (79), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2024-11-02 11:25:32,269 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 44 [2024-11-02 11:25:32,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:32,269 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2024-11-02 11:25:32,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 6 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:32,269 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2024-11-02 11:25:32,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-02 11:25:32,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:32,270 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:32,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 11:25:32,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-02 11:25:32,474 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting insertionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-02 11:25:32,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1949387987, now seen corresponding path program 3 times [2024-11-02 11:25:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018846439] [2024-11-02 11:25:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 11:25:32,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:32,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018846439] [2024-11-02 11:25:32,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018846439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:25:32,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338372440] [2024-11-02 11:25:32,918 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-02 11:25:32,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:32,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:32,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:32,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 11:25:33,051 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-02 11:25:33,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 11:25:33,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-02 11:25:33,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 11:25:33,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:25:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 11:25:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338372440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:25:33,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [921179800] [2024-11-02 11:25:33,504 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-02 11:25:33,505 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:25:33,505 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-02 11:25:33,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:25:33,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 4, 4] total 20 [2024-11-02 11:25:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519532500] [2024-11-02 11:25:33,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:25:33,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-02 11:25:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-02 11:25:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-02 11:25:33,508 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:33,972 INFO L93 Difference]: Finished difference Result 171 states and 195 transitions. [2024-11-02 11:25:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-02 11:25:33,973 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-02 11:25:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:33,974 INFO L225 Difference]: With dead ends: 171 [2024-11-02 11:25:33,974 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 11:25:33,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 89 SyntacticMatches, 9 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=1038, Unknown=0, NotChecked=0, Total=1190 [2024-11-02 11:25:33,975 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 84 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:33,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 217 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:25:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 11:25:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 11:25:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 11:25:33,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-02 11:25:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:33,977 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 11:25:33,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:25:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 11:25:33,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 11:25:33,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-02 11:25:33,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-02 11:25:33,982 INFO L782 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-02 11:25:33,982 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-02 11:25:33,982 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-02 11:25:34,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:34,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-02 11:25:34,185 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:34,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 11:25:35,152 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:25:35,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:25:35 BoogieIcfgContainer [2024-11-02 11:25:35,173 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:25:35,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:25:35,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:25:35,173 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:25:35,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:23" (3/4) ... [2024-11-02 11:25:35,176 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 11:25:35,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure insertionSort [2024-11-02 11:25:35,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-02 11:25:35,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-02 11:25:35,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 11:25:35,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 11:25:35,276 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 11:25:35,276 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 11:25:35,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:25:35,277 INFO L158 Benchmark]: Toolchain (without parser) took 13176.26ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 85.0MB in the beginning and 180.2MB in the end (delta: -95.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,277 INFO L158 Benchmark]: CDTParser took 3.41ms. Allocated memory is still 134.2MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:35,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.01ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 72.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.13ms. Allocated memory is still 134.2MB. Free memory was 72.7MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:35,280 INFO L158 Benchmark]: Boogie Preprocessor took 42.00ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,280 INFO L158 Benchmark]: RCFGBuilder took 555.81ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 70.0MB in the beginning and 133.0MB in the end (delta: -63.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,280 INFO L158 Benchmark]: TraceAbstraction took 12148.62ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 132.2MB in the beginning and 184.4MB in the end (delta: -52.2MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,280 INFO L158 Benchmark]: Witness Printer took 103.26ms. Allocated memory is still 247.5MB. Free memory was 184.4MB in the beginning and 180.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:25:35,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.41ms. Allocated memory is still 134.2MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.01ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 72.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.13ms. Allocated memory is still 134.2MB. Free memory was 72.7MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.00ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.81ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 70.0MB in the beginning and 133.0MB in the end (delta: -63.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12148.62ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 132.2MB in the beginning and 184.4MB in the end (delta: -52.2MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. * Witness Printer took 103.26ms. Allocated memory is still 247.5MB. Free memory was 184.4MB in the beginning and 180.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 545 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 545 mSDsluCounter, 1570 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1210 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1166 IncrementalHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 360 mSDtfsCounter, 1166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 320 SyntacticMatches, 17 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=16, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 182 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 551 NumberOfCodeBlocks, 521 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 667 ConstructedInterpolants, 0 QuantifiedInterpolants, 1576 SizeOfPredicates, 16 NumberOfNonLiveVariables, 748 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 30 InterpolantComputations, 12 PerfectInterpolantSequences, 361/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((n <= 2147483647) && (1 <= i)) || (((n <= 2147483647) && (i == 0)) && (1 <= n))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 8]: Procedure Contract for insertionSort Derived contract for procedure insertionSort. Requires: (((0 <= (i + 2147483648)) && (i <= 2147483647)) && (size <= 2147483647)) Ensures: (((0 <= (i + 2147483648)) && (i <= 2147483647)) && (size <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2024-11-02 11:25:35,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d658106-b070-430a-92cc-9e1bc4760369/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE