./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:37:24,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:37:24,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-13 14:37:24,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:37:24,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:37:24,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:37:24,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:37:24,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:37:24,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:37:24,310 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:37:24,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:37:24,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:37:24,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:37:24,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:37:24,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:37:24,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:37:24,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:37:24,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:37:24,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:37:24,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:37:24,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:37:24,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:37:24,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:37:24,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:37:24,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:37:24,315 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 [2024-11-13 14:37:24,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:37:24,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:37:24,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:37:24,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:37:24,657 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:37:24,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i Unable to find full path for "g++" [2024-11-13 14:37:26,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:37:27,114 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:37:27,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i [2024-11-13 14:37:27,131 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/data/6364d98f0/f9a4aeac88b24258b98a3dce49758b55/FLAGb6f2512b9 [2024-11-13 14:37:27,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/data/6364d98f0/f9a4aeac88b24258b98a3dce49758b55 [2024-11-13 14:37:27,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:37:27,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:37:27,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:37:27,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:37:27,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:37:27,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac9803e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27, skipping insertion in model container [2024-11-13 14:37:27,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:37:27,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:37:27,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:37:27,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:37:27,636 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:37:27,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27 WrapperNode [2024-11-13 14:37:27,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:37:27,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:37:27,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:37:27,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:37:27,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,669 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-13 14:37:27,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:37:27,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:37:27,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:37:27,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:37:27,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,699 INFO L175 MemorySlicer]: Split 4 memory accesses to 1 slices as follows [4]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 4 writes are split as follows [4]. [2024-11-13 14:37:27,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:37:27,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:37:27,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:37:27,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:37:27,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (1/1) ... [2024-11-13 14:37:27,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:37:27,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:27,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:37:27,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:37:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:37:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:37:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 14:37:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2024-11-13 14:37:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2024-11-13 14:37:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:37:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:37:27,896 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:37:27,898 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:37:28,054 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 14:37:28,054 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:37:28,063 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:37:28,063 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:37:28,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:28 BoogieIcfgContainer [2024-11-13 14:37:28,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:37:28,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:37:28,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:37:28,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:37:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:37:27" (1/3) ... [2024-11-13 14:37:28,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631af48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:28, skipping insertion in model container [2024-11-13 14:37:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:27" (2/3) ... [2024-11-13 14:37:28,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631af48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:28, skipping insertion in model container [2024-11-13 14:37:28,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:28" (3/3) ... [2024-11-13 14:37:28,073 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_by_lseg-alloca-1.i [2024-11-13 14:37:28,088 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:37:28,090 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cll_by_lseg-alloca-1.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 14:37:28,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:37:28,153 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=PETRI_NET, 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;@405d310, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:37:28,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-13 14:37:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 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) [2024-11-13 14:37:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 14:37:28,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:28,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 14:37:28,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:28,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2024-11-13 14:37:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:28,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566337121] [2024-11-13 14:37:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566337121] [2024-11-13 14:37:28,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566337121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:28,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:28,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:37:28,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921912491] [2024-11-13 14:37:28,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:28,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:37:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:28,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:37:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:37:28,457 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:28,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:28,489 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-11-13 14:37:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:37:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-13 14:37:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:28,496 INFO L225 Difference]: With dead ends: 22 [2024-11-13 14:37:28,496 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 14:37:28,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:37:28,503 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:28,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 34 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:37:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 14:37:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 14:37:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 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) [2024-11-13 14:37:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 14:37:28,544 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2024-11-13 14:37:28,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:28,545 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 14:37:28,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 14:37:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 14:37:28,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:28,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:28,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:37:28,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:28,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash 88399226, now seen corresponding path program 1 times [2024-11-13 14:37:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:28,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843296546] [2024-11-13 14:37:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:28,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:28,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843296546] [2024-11-13 14:37:28,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843296546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:28,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:28,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:37:28,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306840522] [2024-11-13 14:37:28,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:28,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:28,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:28,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:28,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:37:28,826 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-13 14:37:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:28,901 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2024-11-13 14:37:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:28,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 8 [2024-11-13 14:37:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:28,903 INFO L225 Difference]: With dead ends: 19 [2024-11-13 14:37:28,903 INFO L226 Difference]: Without dead ends: 18 [2024-11-13 14:37:28,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:37:28,904 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:28,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:37:28,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-13 14:37:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2024-11-13 14:37:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-11-13 14:37:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-13 14:37:28,913 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-13 14:37:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:28,913 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-13 14:37:28,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-13 14:37:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-13 14:37:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 14:37:28,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:28,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:28,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:37:28,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:28,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1554591238, now seen corresponding path program 1 times [2024-11-13 14:37:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:28,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026819542] [2024-11-13 14:37:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:29,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026819542] [2024-11-13 14:37:29,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026819542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:29,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:29,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:37:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265282800] [2024-11-13 14:37:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:29,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:29,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:29,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:37:29,136 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-13 14:37:29,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:29,179 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-13 14:37:29,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2024-11-13 14:37:29,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:29,180 INFO L225 Difference]: With dead ends: 15 [2024-11-13 14:37:29,180 INFO L226 Difference]: Without dead ends: 14 [2024-11-13 14:37:29,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:37:29,181 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:29,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:37:29,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-13 14:37:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 14:37:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-13 14:37:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-13 14:37:29,189 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2024-11-13 14:37:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:29,189 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-13 14:37:29,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-13 14:37:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-13 14:37:29,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 14:37:29,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:29,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:29,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:37:29,191 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:29,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:29,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1755034194, now seen corresponding path program 1 times [2024-11-13 14:37:29,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:29,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159132302] [2024-11-13 14:37:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:29,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159132302] [2024-11-13 14:37:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159132302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388870097] [2024-11-13 14:37:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:29,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:29,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:29,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:29,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:37:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:29,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:37:29,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:29,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:29,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388870097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:37:29,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:37:29,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-13 14:37:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408870551] [2024-11-13 14:37:29,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:37:29,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:37:29,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:37:29,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:37:29,836 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:30,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:30,011 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-11-13 14:37:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:37:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 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 13 [2024-11-13 14:37:30,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:30,013 INFO L225 Difference]: With dead ends: 32 [2024-11-13 14:37:30,013 INFO L226 Difference]: Without dead ends: 31 [2024-11-13 14:37:30,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:37:30,014 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:30,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:37:30,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-13 14:37:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2024-11-13 14:37:30,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 5 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) [2024-11-13 14:37:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2024-11-13 14:37:30,026 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2024-11-13 14:37:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:30,027 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2024-11-13 14:37:30,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2024-11-13 14:37:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 14:37:30,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:30,028 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:30,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:37:30,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:30,233 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:30,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:30,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1428013446, now seen corresponding path program 2 times [2024-11-13 14:37:30,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:30,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089695647] [2024-11-13 14:37:30,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:30,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:30,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089695647] [2024-11-13 14:37:30,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089695647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888716803] [2024-11-13 14:37:30,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:37:30,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:30,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:30,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:30,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:37:30,838 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:37:30,838 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:37:30,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:37:30,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:30,963 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:30,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888716803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:37:31,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:37:31,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-13 14:37:31,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059669694] [2024-11-13 14:37:31,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:37:31,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 14:37:31,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 14:37:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:37:31,301 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:31,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:31,687 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2024-11-13 14:37:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 14:37:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-13 14:37:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:31,689 INFO L225 Difference]: With dead ends: 62 [2024-11-13 14:37:31,689 INFO L226 Difference]: Without dead ends: 61 [2024-11-13 14:37:31,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=875, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 14:37:31,691 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 133 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:31,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 28 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:37:31,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-13 14:37:31,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2024-11-13 14:37:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2024-11-13 14:37:31,715 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 28 [2024-11-13 14:37:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:31,715 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2024-11-13 14:37:31,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2024-11-13 14:37:31,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:37:31,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:31,716 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:31,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:37:31,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:31,920 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:31,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1912823814, now seen corresponding path program 3 times [2024-11-13 14:37:31,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:31,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104226365] [2024-11-13 14:37:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:31,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:33,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:33,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104226365] [2024-11-13 14:37:33,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104226365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:33,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414737215] [2024-11-13 14:37:33,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:37:33,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:33,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:33,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:33,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:37:35,683 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-13 14:37:35,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:37:35,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:37:35,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:35,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:36,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414737215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:37:36,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:37:36,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-11-13 14:37:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704665323] [2024-11-13 14:37:36,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:37:36,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-13 14:37:36,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-13 14:37:36,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=1792, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 14:37:36,778 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:37,682 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2024-11-13 14:37:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-13 14:37:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 14:37:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:37,684 INFO L225 Difference]: With dead ends: 122 [2024-11-13 14:37:37,686 INFO L226 Difference]: Without dead ends: 121 [2024-11-13 14:37:37,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1341, Invalid=3629, Unknown=0, NotChecked=0, Total=4970 [2024-11-13 14:37:37,689 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 325 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:37,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 40 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:37:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-13 14:37:37,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-13 14:37:37,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2024-11-13 14:37:37,715 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 58 [2024-11-13 14:37:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:37,715 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2024-11-13 14:37:37,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2024-11-13 14:37:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 14:37:37,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:37,721 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:37,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:37:37,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 14:37:37,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:37,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1399422214, now seen corresponding path program 4 times [2024-11-13 14:37:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:37,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007799854] [2024-11-13 14:37:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:40,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:40,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007799854] [2024-11-13 14:37:40,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007799854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:40,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162198410] [2024-11-13 14:37:40,763 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:37:40,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:40,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:40,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:40,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:37:41,094 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:37:41,094 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:37:41,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 14:37:41,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:41,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:44,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162198410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:37:44,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:37:44,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2024-11-13 14:37:44,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465973145] [2024-11-13 14:37:44,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:37:44,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-11-13 14:37:44,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:37:44,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-11-13 14:37:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2264, Invalid=7048, Unknown=0, NotChecked=0, Total=9312 [2024-11-13 14:37:44,321 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:46,595 INFO L93 Difference]: Finished difference Result 242 states and 265 transitions. [2024-11-13 14:37:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-13 14:37:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-13 14:37:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:46,600 INFO L225 Difference]: With dead ends: 242 [2024-11-13 14:37:46,600 INFO L226 Difference]: Without dead ends: 241 [2024-11-13 14:37:46,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4230 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=5553, Invalid=14753, Unknown=0, NotChecked=0, Total=20306 [2024-11-13 14:37:46,609 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 669 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:46,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 28 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:37:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-13 14:37:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2024-11-13 14:37:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 191 states have (on average 1.0052356020942408) internal successors, (192), 191 states have internal predecessors, (192), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2024-11-13 14:37:46,636 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 118 [2024-11-13 14:37:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:46,637 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2024-11-13 14:37:46,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:37:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2024-11-13 14:37:46,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-13 14:37:46,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:46,645 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:46,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:37:46,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:46,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:37:46,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:46,846 INFO L85 PathProgramCache]: Analyzing trace with hash -268515078, now seen corresponding path program 5 times [2024-11-13 14:37:46,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:37:46,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058577566] [2024-11-13 14:37:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:46,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:37:54,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:54,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058577566] [2024-11-13 14:37:54,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058577566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:54,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486404982] [2024-11-13 14:37:54,960 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:37:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:54,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:48:56,323 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-13 14:48:56,323 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:48:56,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-13 14:48:56,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:48:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:48:57,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:49:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:49:06,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486404982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:49:06,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:49:06,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 192 [2024-11-13 14:49:06,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700499942] [2024-11-13 14:49:06,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:49:06,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-11-13 14:49:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:49:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-11-13 14:49:06,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9128, Invalid=27928, Unknown=0, NotChecked=0, Total=37056 [2024-11-13 14:49:06,329 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:49:16,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:49:16,264 INFO L93 Difference]: Finished difference Result 482 states and 529 transitions. [2024-11-13 14:49:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-13 14:49:16,266 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2024-11-13 14:49:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:49:16,271 INFO L225 Difference]: With dead ends: 482 [2024-11-13 14:49:16,271 INFO L226 Difference]: Without dead ends: 481 [2024-11-13 14:49:16,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17670 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=22617, Invalid=59465, Unknown=0, NotChecked=0, Total=82082 [2024-11-13 14:49:16,281 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2165 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:49:16,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 31 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:49:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-13 14:49:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2024-11-13 14:49:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 383 states have (on average 1.0026109660574412) internal successors, (384), 383 states have internal predecessors, (384), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:49:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2024-11-13 14:49:16,354 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 238 [2024-11-13 14:49:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:49:16,355 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2024-11-13 14:49:16,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:49:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2024-11-13 14:49:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-13 14:49:16,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:49:16,369 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2024-11-13 14:49:16,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:49:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 14:49:16,570 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 14:49:16,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:49:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1688294650, now seen corresponding path program 6 times [2024-11-13 14:49:16,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:49:16,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271342167] [2024-11-13 14:49:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:49:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:49:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:49:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:49:46,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:49:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271342167] [2024-11-13 14:49:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271342167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:49:46,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962584812] [2024-11-13 14:49:46,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:49:46,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:49:46,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:49:46,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:49:46,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaee42cb-f171-48f0-84f9-9a339b92ebd4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process