./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:29:52,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:29:52,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 05:29:52,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:29:52,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:29:52,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:29:52,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:29:52,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:29:52,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:29:52,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:29:52,306 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:29:52,307 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:29:52,307 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:29:52,307 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:29:52,308 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:29:52,308 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:29:52,308 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:29:52,309 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:29:52,309 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:29:52,309 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:29:52,310 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:29:52,310 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:29:52,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:29:52,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:29:52,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:29:52,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:29:52,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:29:52,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:29:52,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:29:52,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:29:52,314 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:29:52,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:29:52,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:29:52,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:29:52,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:29:52,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:29:52,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:29:52,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:29:52,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:29:52,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:29:52,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:29:52,317 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:29:52,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:29:52,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:29:52,318 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:29:52,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:29:52,318 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2024-11-09 05:29:52,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:29:52,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:29:52,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:29:52,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:29:52,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:29:52,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c Unable to find full path for "g++" [2024-11-09 05:29:54,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:29:54,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:29:54,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2024-11-09 05:29:54,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/data/183053fa6/9f6856d4527e4ff38a766f3d7a154a2a/FLAGe1c6eea16 [2024-11-09 05:29:54,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/data/183053fa6/9f6856d4527e4ff38a766f3d7a154a2a [2024-11-09 05:29:54,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:29:54,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:29:54,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:29:54,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:29:54,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:29:54,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:29:54" (1/1) ... [2024-11-09 05:29:54,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@455d02ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:54, skipping insertion in model container [2024-11-09 05:29:54,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:29:54" (1/1) ... [2024-11-09 05:29:54,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:29:55,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:29:55,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:29:55,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:29:55,247 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:29:55,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55 WrapperNode [2024-11-09 05:29:55,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:29:55,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:29:55,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:29:55,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:29:55,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,278 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-09 05:29:55,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:29:55,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:29:55,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:29:55,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:29:55,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:29:55,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:29:55,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:29:55,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:29:55,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (1/1) ... [2024-11-09 05:29:55,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:29:55,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:55,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:29:55,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:29:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure p [2024-11-09 05:29:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2024-11-09 05:29:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:29:55,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:29:55,457 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:29:55,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:29:55,625 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 05:29:55,625 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:29:55,650 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:29:55,650 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:29:55,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:55 BoogieIcfgContainer [2024-11-09 05:29:55,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:29:55,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:29:55,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:29:55,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:29:55,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:29:54" (1/3) ... [2024-11-09 05:29:55,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcc7205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:29:55, skipping insertion in model container [2024-11-09 05:29:55,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:55" (2/3) ... [2024-11-09 05:29:55,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcc7205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:29:55, skipping insertion in model container [2024-11-09 05:29:55,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:55" (3/3) ... [2024-11-09 05:29:55,668 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2024-11-09 05:29:55,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:29:55,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 05:29:55,748 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:29:55,754 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4fa20711, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:29:55,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 05:29:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:29:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:29:55,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:55,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:29:55,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:55,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2144713769, now seen corresponding path program 1 times [2024-11-09 05:29:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:55,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769655834] [2024-11-09 05:29:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:55,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769655834] [2024-11-09 05:29:55,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769655834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:55,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:55,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:29:55,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86898520] [2024-11-09 05:29:55,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:55,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:29:55,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:56,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:29:56,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:29:56,013 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 05:29:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:56,063 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2024-11-09 05:29:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:29:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 6 [2024-11-09 05:29:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:56,071 INFO L225 Difference]: With dead ends: 25 [2024-11-09 05:29:56,071 INFO L226 Difference]: Without dead ends: 15 [2024-11-09 05:29:56,074 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 [2024-11-09 05:29:56,077 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:56,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:29:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-09 05:29:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-09 05:29:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-11-09 05:29:56,113 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2024-11-09 05:29:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:56,113 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-11-09 05:29:56,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 05:29:56,114 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-11-09 05:29:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:29:56,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:56,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:56,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:29:56,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:56,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2061617436, now seen corresponding path program 1 times [2024-11-09 05:29:56,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:56,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576091818] [2024-11-09 05:29:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:56,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:56,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576091818] [2024-11-09 05:29:56,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576091818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:56,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:56,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:56,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227901377] [2024-11-09 05:29:56,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:56,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:29:56,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:56,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:29:56,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:29:56,243 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 05:29:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:56,310 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-09 05:29:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:29:56,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 7 [2024-11-09 05:29:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:56,318 INFO L225 Difference]: With dead ends: 27 [2024-11-09 05:29:56,318 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 05:29:56,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:29:56,320 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:56,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:29:56,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 05:29:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2024-11-09 05:29:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-09 05:29:56,328 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 7 [2024-11-09 05:29:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:56,328 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-09 05:29:56,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 05:29:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-09 05:29:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:29:56,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:56,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:56,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:29:56,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:56,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2061624419, now seen corresponding path program 1 times [2024-11-09 05:29:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:56,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301046812] [2024-11-09 05:29:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:56,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301046812] [2024-11-09 05:29:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301046812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:56,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:56,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:29:56,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894781634] [2024-11-09 05:29:56,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:56,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:29:56,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:56,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:29:56,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:29:56,369 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 05:29:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:56,388 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-09 05:29:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:29:56,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 7 [2024-11-09 05:29:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:56,389 INFO L225 Difference]: With dead ends: 19 [2024-11-09 05:29:56,389 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 05:29:56,390 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 [2024-11-09 05:29:56,391 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:56,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:29:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 05:29:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-09 05:29:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-09 05:29:56,404 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2024-11-09 05:29:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:56,404 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-09 05:29:56,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 05:29:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-09 05:29:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:29:56,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:56,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:56,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:29:56,407 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:56,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash -514152404, now seen corresponding path program 1 times [2024-11-09 05:29:56,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:56,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198031064] [2024-11-09 05:29:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:56,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:56,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198031064] [2024-11-09 05:29:56,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198031064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:56,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:56,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:56,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346052492] [2024-11-09 05:29:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:56,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:29:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:29:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:29:56,505 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2024-11-09 05:29:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:56,554 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-11-09 05:29:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:29:56,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 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 [2024-11-09 05:29:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:56,556 INFO L225 Difference]: With dead ends: 29 [2024-11-09 05:29:56,556 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 05:29:56,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:29:56,558 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:56,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:29:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 05:29:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2024-11-09 05:29:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-09 05:29:56,587 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2024-11-09 05:29:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:56,587 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-09 05:29:56,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2024-11-09 05:29:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-09 05:29:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:29:56,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:56,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:56,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:29:56,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:56,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:56,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1532613260, now seen corresponding path program 1 times [2024-11-09 05:29:56,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:56,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393489887] [2024-11-09 05:29:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:56,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393489887] [2024-11-09 05:29:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393489887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:56,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299101089] [2024-11-09 05:29:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:56,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:56,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:56,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:29:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:29:56,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:56,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299101089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1763193593] [2024-11-09 05:29:57,056 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-09 05:29:57,056 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:57,059 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:29:57,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:29:57,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:29:57,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957251214] [2024-11-09 05:29:57,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:29:57,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:29:57,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:29:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:29:57,064 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:57,218 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-11-09 05:29:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:29:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 05:29:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:57,220 INFO L225 Difference]: With dead ends: 34 [2024-11-09 05:29:57,220 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 05:29:57,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:29:57,222 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 39 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:57,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 24 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:29:57,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 05:29:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2024-11-09 05:29:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-09 05:29:57,236 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2024-11-09 05:29:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:57,237 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-09 05:29:57,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-09 05:29:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:29:57,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:57,238 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:57,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:29:57,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:57,445 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:29:57,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash -469889922, now seen corresponding path program 1 times [2024-11-09 05:29:57,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:57,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96753554] [2024-11-09 05:29:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:57,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:57,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:57,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96753554] [2024-11-09 05:29:57,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96753554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:57,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354698837] [2024-11-09 05:29:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:57,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:57,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:57,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:57,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:29:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:57,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:29:57,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:57,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:29:57,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354698837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:57,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775390728] [2024-11-09 05:29:57,735 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-09 05:29:57,735 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:57,735 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:29:57,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:29:57,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:29:57,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739475197] [2024-11-09 05:29:57,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:29:57,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:29:57,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:57,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:29:57,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:29:57,742 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:57,891 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2024-11-09 05:29:57,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:29:57,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 05:29:57,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:57,893 INFO L225 Difference]: With dead ends: 22 [2024-11-09 05:29:57,893 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:29:57,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:29:57,898 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 34 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:57,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 54 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:29:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:29:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:29:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:29:57,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-09 05:29:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:57,900 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:29:57,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:29:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:29:57,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:29:57,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 05:29:57,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 05:29:57,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 05:29:57,907 INFO L782 garLoopResultBuilder]: Registering result SAFE for location pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 05:29:57,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:29:58,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:58,111 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-09 05:29:58,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:29:58,353 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:29:58,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:29:58 BoogieIcfgContainer [2024-11-09 05:29:58,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:29:58,380 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:29:58,380 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:29:58,380 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:29:58,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:55" (3/4) ... [2024-11-09 05:29:58,383 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:29:58,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2024-11-09 05:29:58,391 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 05:29:58,391 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 05:29:58,391 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 05:29:58,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:29:58,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:29:58,480 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:29:58,481 INFO L158 Benchmark]: Toolchain (without parser) took 3557.71ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 136.6MB in the beginning and 100.1MB in the end (delta: 36.5MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,481 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:29:58,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.42ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 132.0MB in the end (delta: 3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.07ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 130.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,482 INFO L158 Benchmark]: Boogie Preprocessor took 24.30ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 129.9MB in the end (delta: 746.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:29:58,482 INFO L158 Benchmark]: RCFGBuilder took 345.29ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 118.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,483 INFO L158 Benchmark]: TraceAbstraction took 2725.14ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.2MB in the beginning and 104.3MB in the end (delta: 13.9MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,483 INFO L158 Benchmark]: Witness Printer took 100.05ms. Allocated memory is still 201.3MB. Free memory was 104.3MB in the beginning and 100.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:29:58,486 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.42ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 132.0MB in the end (delta: 3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.07ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 130.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.30ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 129.9MB in the end (delta: 746.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.29ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 118.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2725.14ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.2MB in the beginning and 104.3MB in the end (delta: 13.9MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Witness Printer took 100.05ms. Allocated memory is still 201.3MB. Free memory was 104.3MB in the beginning and 100.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 80 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=4, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 4 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - ProcedureContractResult [Line: 12]: Procedure Contract for p Derived contract for procedure p. Requires: (((m <= 2147483647) && (r <= 2147483647)) && (n <= 2147483647)) Ensures: (((m <= 2147483647) && (r <= 2147483647)) && (n <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:29:58,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6e9f22-9558-4088-b036-c731b1739a60/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE