./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:13:40,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:13:41,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-09 11:13:41,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:13:41,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:13:41,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:13:41,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:13:41,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:13:41,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:13:41,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:13:41,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:13:41,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:13:41,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:13:41,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:13:41,093 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:13:41,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:13:41,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:13:41,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:13:41,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:13:41,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:13:41,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:13:41,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:13:41,099 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:13:41,099 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:13:41,100 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:13:41,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:13:41,100 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:13:41,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:13:41,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:13:41,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:13:41,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:13:41,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:13:41,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:13:41,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:13:41,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:13:41,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:13:41,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:13:41,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:13:41,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:13:41,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:13:41,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:13:41,105 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe [2024-11-09 11:13:41,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:13:41,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:13:41,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:13:41,389 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:13:41,390 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:13:41,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2024-11-09 11:13:42,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:13:43,059 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:13:43,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2024-11-09 11:13:43,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dff02b3/f1adbb0dd097477eadd4e26664ce887e/FLAGebe5210d6 [2024-11-09 11:13:43,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dff02b3/f1adbb0dd097477eadd4e26664ce887e [2024-11-09 11:13:43,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:13:43,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:13:43,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:13:43,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:13:43,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:13:43,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3d29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43, skipping insertion in model container [2024-11-09 11:13:43,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:13:43,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:13:43,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:13:43,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:13:43,691 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:13:43,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43 WrapperNode [2024-11-09 11:13:43,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:13:43,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:13:43,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:13:43,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:13:43,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,724 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-11-09 11:13:43,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:13:43,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:13:43,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:13:43,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:13:43,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,744 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 11:13:43,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:13:43,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:13:43,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:13:43,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:13:43,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (1/1) ... [2024-11-09 11:13:43,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:13:43,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:43,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 11:13:43,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 11:13:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 11:13:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 11:13:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:13:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:13:43,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:13:43,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:13:44,072 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 11:13:44,072 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:13:44,084 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:13:44,085 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 11:13:44,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:44 BoogieIcfgContainer [2024-11-09 11:13:44,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:13:44,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:13:44,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:13:44,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:13:44,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:13:43" (1/3) ... [2024-11-09 11:13:44,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc3824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:44, skipping insertion in model container [2024-11-09 11:13:44,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:43" (2/3) ... [2024-11-09 11:13:44,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc3824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:44, skipping insertion in model container [2024-11-09 11:13:44,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:13:44" (3/3) ... [2024-11-09 11:13:44,093 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex5.c [2024-11-09 11:13:44,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:13:44,107 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 11:13:44,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:13:44,166 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;@2bc22c95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:13:44,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 11:13:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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 11:13:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 11:13:44,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:44,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:44,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:44,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:44,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1484225386, now seen corresponding path program 1 times [2024-11-09 11:13:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:44,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303671308] [2024-11-09 11:13:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:44,387 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 11:13:44,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303671308] [2024-11-09 11:13:44,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303671308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:44,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:13:44,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:13:44,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199438543] [2024-11-09 11:13:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:44,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:44,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:13:44,432 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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 5 states, 3 states have (on average 2.3333333333333335) 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) [2024-11-09 11:13:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:44,579 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-09 11:13:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:13:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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 [2024-11-09 11:13:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:44,589 INFO L225 Difference]: With dead ends: 47 [2024-11-09 11:13:44,589 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 11:13:44,593 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 [2024-11-09 11:13:44,596 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:44,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 92 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 11:13:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2024-11-09 11:13:44,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 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 11:13:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-09 11:13:44,624 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8 [2024-11-09 11:13:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:44,624 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-09 11:13:44,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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) [2024-11-09 11:13:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-09 11:13:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 11:13:44,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:44,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:44,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:13:44,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:44,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1484225162, now seen corresponding path program 1 times [2024-11-09 11:13:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:44,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695941938] [2024-11-09 11:13:44,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:44,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:44,703 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 11:13:44,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:44,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695941938] [2024-11-09 11:13:44,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695941938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:44,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:13:44,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:13:44,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426323188] [2024-11-09 11:13:44,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:44,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:44,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:13:44,708 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) 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) [2024-11-09 11:13:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:44,767 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-09 11:13:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:13:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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 [2024-11-09 11:13:44,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:44,769 INFO L225 Difference]: With dead ends: 29 [2024-11-09 11:13:44,769 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 11:13:44,770 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 [2024-11-09 11:13:44,771 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:44,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 11:13:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2024-11-09 11:13:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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 11:13:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-11-09 11:13:44,779 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2024-11-09 11:13:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:44,779 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-11-09 11:13:44,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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) [2024-11-09 11:13:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-09 11:13:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 11:13:44,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:44,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:44,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 11:13:44,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:44,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1233653331, now seen corresponding path program 1 times [2024-11-09 11:13:44,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:44,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562163213] [2024-11-09 11:13:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:44,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:44,857 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 11:13:44,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:44,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562163213] [2024-11-09 11:13:44,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562163213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:44,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:13:44,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:13:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768111690] [2024-11-09 11:13:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:44,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:44,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:44,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:13:44,861 INFO L87 Difference]: Start difference. First operand 22 states and 24 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) [2024-11-09 11:13:44,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:44,909 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-11-09 11:13:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:13:44,909 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 [2024-11-09 11:13:44,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:44,910 INFO L225 Difference]: With dead ends: 35 [2024-11-09 11:13:44,910 INFO L226 Difference]: Without dead ends: 34 [2024-11-09 11:13:44,911 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 [2024-11-09 11:13:44,912 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 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 11:13:44,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:44,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-09 11:13:44,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2024-11-09 11:13:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.4) internal successors, (28), 24 states have internal predecessors, (28), 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 11:13:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-09 11:13:44,927 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 9 [2024-11-09 11:13:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:44,927 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-09 11:13:44,928 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) [2024-11-09 11:13:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-09 11:13:44,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 11:13:44,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:44,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:44,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 11:13:44,929 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:44,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1233660282, now seen corresponding path program 1 times [2024-11-09 11:13:44,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:44,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646130533] [2024-11-09 11:13:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:44,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:45,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:45,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646130533] [2024-11-09 11:13:45,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646130533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:45,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:13:45,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:13:45,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925249303] [2024-11-09 11:13:45,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:45,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:45,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:45,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:45,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:13:45,011 INFO L87 Difference]: Start difference. First operand 28 states and 32 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) [2024-11-09 11:13:45,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:45,071 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2024-11-09 11:13:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:13:45,075 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 [2024-11-09 11:13:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:45,076 INFO L225 Difference]: With dead ends: 33 [2024-11-09 11:13:45,076 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 11:13:45,077 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 [2024-11-09 11:13:45,078 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:45,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 11:13:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2024-11-09 11:13:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 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 11:13:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-09 11:13:45,086 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2024-11-09 11:13:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:45,088 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-09 11:13:45,088 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) [2024-11-09 11:13:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-09 11:13:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 11:13:45,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:45,089 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:45,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 11:13:45,090 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:45,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:45,093 INFO L85 PathProgramCache]: Analyzing trace with hash -525255754, now seen corresponding path program 1 times [2024-11-09 11:13:45,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:45,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612836300] [2024-11-09 11:13:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:45,201 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 11:13:45,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612836300] [2024-11-09 11:13:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612836300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690095561] [2024-11-09 11:13:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:45,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:45,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:45,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:13:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:45,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:13:45,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:45,311 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 11:13:45,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:45,409 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 11:13:45,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690095561] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:45,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:45,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-09 11:13:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737030845] [2024-11-09 11:13:45,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:45,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:13:45,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:13:45,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:45,417 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:45,561 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2024-11-09 11:13:45,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 11:13:45,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 14 [2024-11-09 11:13:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:45,563 INFO L225 Difference]: With dead ends: 66 [2024-11-09 11:13:45,563 INFO L226 Difference]: Without dead ends: 65 [2024-11-09 11:13:45,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-09 11:13:45,570 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 90 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:45,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 106 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:45,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-09 11:13:45,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 47. [2024-11-09 11:13:45,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 40 states have internal predecessors, (47), 7 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-11-09 11:13:45,578 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 14 [2024-11-09 11:13:45,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:45,578 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-11-09 11:13:45,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:45,579 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-11-09 11:13:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 11:13:45,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:45,580 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:45,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 11:13:45,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:45,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:45,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash -525255530, now seen corresponding path program 1 times [2024-11-09 11:13:45,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:45,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660483234] [2024-11-09 11:13:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:45,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660483234] [2024-11-09 11:13:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660483234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:45,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383798161] [2024-11-09 11:13:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:45,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:45,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:45,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:13:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:45,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:13:45,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:45,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:13:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383798161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:13:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 11:13:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621237200] [2024-11-09 11:13:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:45,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:13:45,947 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-09 11:13:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:46,016 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2024-11-09 11:13:46,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 11:13:46,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Word has length 14 [2024-11-09 11:13:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:46,018 INFO L225 Difference]: With dead ends: 60 [2024-11-09 11:13:46,018 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 11:13:46,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:46,019 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:46,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 50 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:46,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 11:13:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2024-11-09 11:13:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.3) internal successors, (52), 43 states have internal predecessors, (52), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2024-11-09 11:13:46,032 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 14 [2024-11-09 11:13:46,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:46,032 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2024-11-09 11:13:46,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-09 11:13:46,032 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2024-11-09 11:13:46,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 11:13:46,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:46,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:46,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 11:13:46,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 11:13:46,234 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:46,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash 909324273, now seen corresponding path program 1 times [2024-11-09 11:13:46,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:46,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262298176] [2024-11-09 11:13:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:46,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262298176] [2024-11-09 11:13:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262298176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324719662] [2024-11-09 11:13:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:46,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:46,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:46,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:46,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:13:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:46,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:13:46,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:46,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:46,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324719662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:46,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:46,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-09 11:13:46,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339905428] [2024-11-09 11:13:46,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:46,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:13:46,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:13:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:46,449 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:46,692 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2024-11-09 11:13:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 11:13:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 14 [2024-11-09 11:13:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:46,693 INFO L225 Difference]: With dead ends: 101 [2024-11-09 11:13:46,693 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 11:13:46,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-09 11:13:46,694 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 95 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:46,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 102 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 11:13:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 74. [2024-11-09 11:13:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 62 states have internal predecessors, (79), 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) [2024-11-09 11:13:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2024-11-09 11:13:46,707 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 14 [2024-11-09 11:13:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:46,708 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2024-11-09 11:13:46,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2024-11-09 11:13:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 11:13:46,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:46,709 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:46,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 11:13:46,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:46,914 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:46,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:46,914 INFO L85 PathProgramCache]: Analyzing trace with hash 909324497, now seen corresponding path program 1 times [2024-11-09 11:13:46,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:46,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088520881] [2024-11-09 11:13:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:46,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:46,969 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 11:13:46,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:46,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088520881] [2024-11-09 11:13:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088520881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:46,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306914018] [2024-11-09 11:13:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:46,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:46,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:46,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:46,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:13:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:47,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:13:47,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:47,030 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 11:13:47,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:47,109 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 11:13:47,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306914018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:47,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:47,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-09 11:13:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590424118] [2024-11-09 11:13:47,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:47,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:13:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:13:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:47,113 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:47,426 INFO L93 Difference]: Finished difference Result 117 states and 136 transitions. [2024-11-09 11:13:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 11:13:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 14 [2024-11-09 11:13:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:47,428 INFO L225 Difference]: With dead ends: 117 [2024-11-09 11:13:47,428 INFO L226 Difference]: Without dead ends: 115 [2024-11-09 11:13:47,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-11-09 11:13:47,429 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 120 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:47,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 72 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:47,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-09 11:13:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 89. [2024-11-09 11:13:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 75 states have internal predecessors, (95), 14 states have call successors, (14), 13 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2024-11-09 11:13:47,441 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 14 [2024-11-09 11:13:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:47,441 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2024-11-09 11:13:47,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 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 11:13:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2024-11-09 11:13:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 11:13:47,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:47,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:47,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 11:13:47,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:47,644 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:47,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:47,644 INFO L85 PathProgramCache]: Analyzing trace with hash 896947802, now seen corresponding path program 1 times [2024-11-09 11:13:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494262200] [2024-11-09 11:13:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:47,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:47,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494262200] [2024-11-09 11:13:47,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494262200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641589404] [2024-11-09 11:13:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:47,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:47,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:47,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:47,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 11:13:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:47,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:13:47,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:47,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:13:47,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641589404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:47,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:13:47,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 11:13:47,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628992255] [2024-11-09 11:13:47,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:47,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:47,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:47,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:13:47,807 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-11-09 11:13:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:47,865 INFO L93 Difference]: Finished difference Result 102 states and 123 transitions. [2024-11-09 11:13:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 11:13:47,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) Word has length 15 [2024-11-09 11:13:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:47,866 INFO L225 Difference]: With dead ends: 102 [2024-11-09 11:13:47,866 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 11:13:47,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:47,867 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:47,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 11:13:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2024-11-09 11:13:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 76 states have (on average 1.3026315789473684) internal successors, (99), 79 states have internal predecessors, (99), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:47,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 113 transitions. [2024-11-09 11:13:47,887 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 113 transitions. Word has length 15 [2024-11-09 11:13:47,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:47,887 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 113 transitions. [2024-11-09 11:13:47,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-11-09 11:13:47,887 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 113 transitions. [2024-11-09 11:13:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 11:13:47,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:47,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:47,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 11:13:48,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:48,092 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:48,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:48,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1875718568, now seen corresponding path program 1 times [2024-11-09 11:13:48,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:48,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934801803] [2024-11-09 11:13:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:48,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:48,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:48,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934801803] [2024-11-09 11:13:48,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934801803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:48,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491206604] [2024-11-09 11:13:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:48,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:48,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 11:13:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:48,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:13:48,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:48,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:13:48,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491206604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:13:48,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:13:48,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 11:13:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442066611] [2024-11-09 11:13:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:13:48,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:13:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:13:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:13:48,226 INFO L87 Difference]: Start difference. First operand 94 states and 113 transitions. Second operand has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-11-09 11:13:48,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:48,274 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2024-11-09 11:13:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:13:48,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) Word has length 15 [2024-11-09 11:13:48,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:48,276 INFO L225 Difference]: With dead ends: 98 [2024-11-09 11:13:48,276 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 11:13:48,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:48,277 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:48,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:13:48,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 11:13:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2024-11-09 11:13:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 72 states have internal predecessors, (89), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2024-11-09 11:13:48,288 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 15 [2024-11-09 11:13:48,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:48,289 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2024-11-09 11:13:48,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-11-09 11:13:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2024-11-09 11:13:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 11:13:48,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:48,290 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:48,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 11:13:48,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:48,494 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:48,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:48,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1875711617, now seen corresponding path program 1 times [2024-11-09 11:13:48,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:48,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470026171] [2024-11-09 11:13:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:48,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:48,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:48,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470026171] [2024-11-09 11:13:48,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470026171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:48,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329015971] [2024-11-09 11:13:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:48,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:48,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:48,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 11:13:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:48,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:13:48,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:48,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329015971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:48,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:48,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-09 11:13:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772866263] [2024-11-09 11:13:48,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:48,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:13:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:13:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:13:48,671 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 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 11:13:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:48,784 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2024-11-09 11:13:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 11:13:48,785 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 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 15 [2024-11-09 11:13:48,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:48,785 INFO L225 Difference]: With dead ends: 86 [2024-11-09 11:13:48,785 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 11:13:48,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-09 11:13:48,787 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:48,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 48 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 11:13:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 77. [2024-11-09 11:13:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 65 states have internal predecessors, (75), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:48,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2024-11-09 11:13:48,795 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 15 [2024-11-09 11:13:48,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:48,796 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2024-11-09 11:13:48,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 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 11:13:48,796 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2024-11-09 11:13:48,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 11:13:48,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:48,797 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:48,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 11:13:48,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:48,998 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:48,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1504515633, now seen corresponding path program 1 times [2024-11-09 11:13:48,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:48,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693793353] [2024-11-09 11:13:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:49,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693793353] [2024-11-09 11:13:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693793353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802278167] [2024-11-09 11:13:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:49,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:49,114 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:49,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 11:13:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:49,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:13:49,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:49,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:49,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802278167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:49,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:49,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 21 [2024-11-09 11:13:49,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981050639] [2024-11-09 11:13:49,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:49,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 11:13:49,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 11:13:49,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-09 11:13:49,405 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 22 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 13 states have internal predecessors, (51), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:50,031 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2024-11-09 11:13:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 11:13:50,031 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 13 states have internal predecessors, (51), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 11:13:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:50,032 INFO L225 Difference]: With dead ends: 151 [2024-11-09 11:13:50,032 INFO L226 Difference]: Without dead ends: 149 [2024-11-09 11:13:50,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=477, Invalid=1875, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 11:13:50,034 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 275 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:50,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 76 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:13:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-09 11:13:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 77. [2024-11-09 11:13:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 64 states have internal predecessors, (77), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2024-11-09 11:13:50,046 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 26 [2024-11-09 11:13:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:50,047 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2024-11-09 11:13:50,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 13 states have internal predecessors, (51), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2024-11-09 11:13:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 11:13:50,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:50,048 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:50,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 11:13:50,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 11:13:50,253 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:50,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:50,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1343457996, now seen corresponding path program 1 times [2024-11-09 11:13:50,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:50,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074453915] [2024-11-09 11:13:50,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074453915] [2024-11-09 11:13:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074453915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441063661] [2024-11-09 11:13:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:50,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:50,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:50,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 11:13:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:50,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 11:13:50,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:50,453 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:50,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:50,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441063661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:50,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:50,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-09 11:13:50,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137226665] [2024-11-09 11:13:50,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:50,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 11:13:50,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 11:13:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-09 11:13:50,602 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 20 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 12 states have internal predecessors, (42), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:51,136 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2024-11-09 11:13:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 11:13:51,136 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 12 states have internal predecessors, (42), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-09 11:13:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:51,138 INFO L225 Difference]: With dead ends: 195 [2024-11-09 11:13:51,138 INFO L226 Difference]: Without dead ends: 193 [2024-11-09 11:13:51,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 11:13:51,139 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 129 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:51,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 114 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:13:51,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-09 11:13:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 119. [2024-11-09 11:13:51,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 98 states have (on average 1.2142857142857142) internal successors, (119), 99 states have internal predecessors, (119), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2024-11-09 11:13:51,155 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 26 [2024-11-09 11:13:51,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:51,155 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2024-11-09 11:13:51,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 12 states have internal predecessors, (42), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2024-11-09 11:13:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 11:13:51,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:51,157 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 11:13:51,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 11:13:51,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 11:13:51,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:51,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:51,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1894821127, now seen corresponding path program 2 times [2024-11-09 11:13:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:51,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493707415] [2024-11-09 11:13:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:51,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:51,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493707415] [2024-11-09 11:13:51,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493707415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:51,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80204718] [2024-11-09 11:13:51,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:13:51,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:51,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:51,548 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:51,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 11:13:51,585 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:13:51,586 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:13:51,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 11:13:51,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:51,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:51,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80204718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:51,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:51,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 29 [2024-11-09 11:13:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489158954] [2024-11-09 11:13:51,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:51,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 11:13:51,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:51,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 11:13:51,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2024-11-09 11:13:51,939 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 30 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 17 states have internal predecessors, (71), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:53,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:53,061 INFO L93 Difference]: Finished difference Result 263 states and 303 transitions. [2024-11-09 11:13:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 11:13:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 17 states have internal predecessors, (71), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 11:13:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:53,063 INFO L225 Difference]: With dead ends: 263 [2024-11-09 11:13:53,063 INFO L226 Difference]: Without dead ends: 261 [2024-11-09 11:13:53,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1149, Invalid=5013, Unknown=0, NotChecked=0, Total=6162 [2024-11-09 11:13:53,066 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 382 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:53,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 137 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:13:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-09 11:13:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 144. [2024-11-09 11:13:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 119 states have (on average 1.218487394957983) internal successors, (145), 120 states have internal predecessors, (145), 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) [2024-11-09 11:13:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2024-11-09 11:13:53,098 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 38 [2024-11-09 11:13:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:53,098 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2024-11-09 11:13:53,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 17 states have internal predecessors, (71), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2024-11-09 11:13:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 11:13:53,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:53,100 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 11:13:53,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 11:13:53,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 11:13:53,301 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:53,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:53,302 INFO L85 PathProgramCache]: Analyzing trace with hash 28164967, now seen corresponding path program 2 times [2024-11-09 11:13:53,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:53,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740364768] [2024-11-09 11:13:53,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:53,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 34 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 11:13:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:53,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740364768] [2024-11-09 11:13:53,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740364768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164714803] [2024-11-09 11:13:53,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:13:53,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:53,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:53,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:53,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 11:13:53,500 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:13:53,500 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:13:53,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 11:13:53,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:53,646 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 11:13:53,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 11:13:53,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164714803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:53,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:53,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 24 [2024-11-09 11:13:53,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530812895] [2024-11-09 11:13:53,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:53,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 11:13:53,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:53,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 11:13:53,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-11-09 11:13:53,831 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand has 24 states, 24 states have (on average 2.375) internal successors, (57), 14 states have internal predecessors, (57), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:54,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:54,334 INFO L93 Difference]: Finished difference Result 406 states and 473 transitions. [2024-11-09 11:13:54,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 11:13:54,335 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 14 states have internal predecessors, (57), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 11:13:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:54,337 INFO L225 Difference]: With dead ends: 406 [2024-11-09 11:13:54,337 INFO L226 Difference]: Without dead ends: 330 [2024-11-09 11:13:54,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1341, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 11:13:54,340 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 130 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:54,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 122 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:13:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-09 11:13:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 260. [2024-11-09 11:13:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 214 states have (on average 1.1682242990654206) internal successors, (250), 219 states have internal predecessors, (250), 44 states have call successors, (44), 40 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 294 transitions. [2024-11-09 11:13:54,378 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 294 transitions. Word has length 38 [2024-11-09 11:13:54,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:54,378 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 294 transitions. [2024-11-09 11:13:54,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 14 states have internal predecessors, (57), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 294 transitions. [2024-11-09 11:13:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 11:13:54,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:54,380 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:54,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 11:13:54,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 11:13:54,585 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:54,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:54,585 INFO L85 PathProgramCache]: Analyzing trace with hash 917101277, now seen corresponding path program 2 times [2024-11-09 11:13:54,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:54,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441257039] [2024-11-09 11:13:54,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:54,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:54,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441257039] [2024-11-09 11:13:54,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441257039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764757506] [2024-11-09 11:13:54,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:13:54,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:54,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:54,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:54,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 11:13:54,765 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:13:54,765 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:13:54,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 11:13:54,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:54,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:55,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764757506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:55,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:55,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-09 11:13:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827389601] [2024-11-09 11:13:55,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:55,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 11:13:55,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 11:13:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-11-09 11:13:55,036 INFO L87 Difference]: Start difference. First operand 260 states and 294 transitions. Second operand has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:55,931 INFO L93 Difference]: Finished difference Result 582 states and 644 transitions. [2024-11-09 11:13:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 11:13:55,932 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 11:13:55,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:55,934 INFO L225 Difference]: With dead ends: 582 [2024-11-09 11:13:55,935 INFO L226 Difference]: Without dead ends: 580 [2024-11-09 11:13:55,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=981, Invalid=4275, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 11:13:55,937 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 462 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:55,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 128 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:13:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-09 11:13:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 301. [2024-11-09 11:13:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 248 states have (on average 1.1733870967741935) internal successors, (291), 253 states have internal predecessors, (291), 51 states have call successors, (51), 47 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 342 transitions. [2024-11-09 11:13:55,981 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 342 transitions. Word has length 38 [2024-11-09 11:13:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:55,981 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 342 transitions. [2024-11-09 11:13:55,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 342 transitions. [2024-11-09 11:13:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 11:13:55,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:55,983 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 11:13:56,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 11:13:56,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 11:13:56,184 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:56,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1885503363, now seen corresponding path program 3 times [2024-11-09 11:13:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:56,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010147502] [2024-11-09 11:13:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 68 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 11:13:56,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010147502] [2024-11-09 11:13:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010147502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524494198] [2024-11-09 11:13:56,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:13:56,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:56,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:56,374 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:56,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 11:13:56,414 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 11:13:56,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:13:56,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 11:13:56,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 11:13:56,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 11:13:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524494198] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:56,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:56,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 14 [2024-11-09 11:13:56,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789531791] [2024-11-09 11:13:56,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:56,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 11:13:56,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:56,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 11:13:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-09 11:13:56,480 INFO L87 Difference]: Start difference. First operand 301 states and 342 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 9 states have internal predecessors, (48), 7 states have call successors, (11), 7 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:56,646 INFO L93 Difference]: Finished difference Result 334 states and 380 transitions. [2024-11-09 11:13:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 11:13:56,647 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 9 states have internal predecessors, (48), 7 states have call successors, (11), 7 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 50 [2024-11-09 11:13:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:56,648 INFO L225 Difference]: With dead ends: 334 [2024-11-09 11:13:56,648 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 11:13:56,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-09 11:13:56,650 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:56,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 83 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:13:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 11:13:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 118. [2024-11-09 11:13:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 98 states have (on average 1.030612244897959) internal successors, (101), 98 states have internal predecessors, (101), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2024-11-09 11:13:56,667 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 50 [2024-11-09 11:13:56,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:56,667 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2024-11-09 11:13:56,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 9 states have internal predecessors, (48), 7 states have call successors, (11), 7 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2024-11-09 11:13:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 11:13:56,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:56,668 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:13:56,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 11:13:56,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 11:13:56,869 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:56,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1446440850, now seen corresponding path program 4 times [2024-11-09 11:13:56,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:56,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981837524] [2024-11-09 11:13:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:57,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:57,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981837524] [2024-11-09 11:13:57,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981837524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:57,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110881912] [2024-11-09 11:13:57,164 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:13:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:57,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:57,166 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:57,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 11:13:57,210 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:13:57,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:13:57,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 11:13:57,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:13:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:57,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:13:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:57,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110881912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:13:57,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:13:57,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-11-09 11:13:57,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194240238] [2024-11-09 11:13:57,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:13:57,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-09 11:13:57,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:13:57,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-09 11:13:57,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1626, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 11:13:57,728 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 44 states, 41 states have (on average 2.4878048780487805) internal successors, (102), 24 states have internal predecessors, (102), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:13:59,257 INFO L93 Difference]: Finished difference Result 247 states and 263 transitions. [2024-11-09 11:13:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-09 11:13:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 41 states have (on average 2.4878048780487805) internal successors, (102), 24 states have internal predecessors, (102), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-09 11:13:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:13:59,259 INFO L225 Difference]: With dead ends: 247 [2024-11-09 11:13:59,259 INFO L226 Difference]: Without dead ends: 246 [2024-11-09 11:13:59,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3422 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2251, Invalid=9739, Unknown=0, NotChecked=0, Total=11990 [2024-11-09 11:13:59,264 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 692 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:13:59,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 91 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:13:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-09 11:13:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 238. [2024-11-09 11:13:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 198 states have (on average 1.0303030303030303) internal successors, (204), 198 states have internal predecessors, (204), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 243 transitions. [2024-11-09 11:13:59,295 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 243 transitions. Word has length 62 [2024-11-09 11:13:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:13:59,296 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 243 transitions. [2024-11-09 11:13:59,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 41 states have (on average 2.4878048780487805) internal successors, (102), 24 states have internal predecessors, (102), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:13:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 243 transitions. [2024-11-09 11:13:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 11:13:59,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:13:59,297 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 1, 1, 1, 1, 1] [2024-11-09 11:13:59,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 11:13:59,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:59,498 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:13:59,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:13:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash -349479622, now seen corresponding path program 2 times [2024-11-09 11:13:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:13:59,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797482699] [2024-11-09 11:13:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:13:59,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:13:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:13:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:13:59,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:13:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797482699] [2024-11-09 11:13:59,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797482699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:13:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788218135] [2024-11-09 11:13:59,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:13:59,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:13:59,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:13:59,995 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:13:59,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 11:14:00,048 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:14:00,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:00,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 11:14:00,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:00,155 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:00,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788218135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:00,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:00,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-11-09 11:14:00,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599187577] [2024-11-09 11:14:00,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:00,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-09 11:14:00,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-09 11:14:00,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 11:14:00,706 INFO L87 Difference]: Start difference. First operand 238 states and 243 transitions. Second operand has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:01,519 INFO L93 Difference]: Finished difference Result 279 states and 286 transitions. [2024-11-09 11:14:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-09 11:14:01,520 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-09 11:14:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:01,521 INFO L225 Difference]: With dead ends: 279 [2024-11-09 11:14:01,521 INFO L226 Difference]: Without dead ends: 278 [2024-11-09 11:14:01,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2350 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1323, Invalid=7419, Unknown=0, NotChecked=0, Total=8742 [2024-11-09 11:14:01,524 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 416 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:01,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 168 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:14:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-09 11:14:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 268. [2024-11-09 11:14:01,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 223 states have (on average 1.0179372197309418) internal successors, (227), 223 states have internal predecessors, (227), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:01,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 271 transitions. [2024-11-09 11:14:01,557 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 271 transitions. Word has length 80 [2024-11-09 11:14:01,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:01,557 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 271 transitions. [2024-11-09 11:14:01,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:01,558 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 271 transitions. [2024-11-09 11:14:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 11:14:01,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:01,559 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:01,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 11:14:01,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:01,760 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:14:01,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash -168402537, now seen corresponding path program 5 times [2024-11-09 11:14:01,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:01,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515409367] [2024-11-09 11:14:01,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:01,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:02,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:02,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515409367] [2024-11-09 11:14:02,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515409367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:02,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408682125] [2024-11-09 11:14:02,684 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:14:02,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:02,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:02,704 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:14:02,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 11:14:02,781 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-11-09 11:14:02,781 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:02,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 11:14:02,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:02,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:04,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408682125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:04,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:04,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 87 [2024-11-09 11:14:04,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493842490] [2024-11-09 11:14:04,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:04,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-09 11:14:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-09 11:14:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1016, Invalid=6640, Unknown=0, NotChecked=0, Total=7656 [2024-11-09 11:14:04,164 INFO L87 Difference]: Start difference. First operand 268 states and 271 transitions. Second operand has 88 states, 85 states have (on average 2.4941176470588236) internal successors, (212), 46 states have internal predecessors, (212), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:08,585 INFO L93 Difference]: Finished difference Result 496 states and 526 transitions. [2024-11-09 11:14:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-11-09 11:14:08,586 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 85 states have (on average 2.4941176470588236) internal successors, (212), 46 states have internal predecessors, (212), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-09 11:14:08,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:08,587 INFO L225 Difference]: With dead ends: 496 [2024-11-09 11:14:08,588 INFO L226 Difference]: Without dead ends: 495 [2024-11-09 11:14:08,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16416 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=9399, Invalid=41451, Unknown=0, NotChecked=0, Total=50850 [2024-11-09 11:14:08,592 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 1307 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:08,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 114 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:14:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-09 11:14:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 484. [2024-11-09 11:14:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 403 states have (on average 1.022332506203474) internal successors, (412), 403 states have internal predecessors, (412), 80 states have call successors, (80), 80 states have call predecessors, (80), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 492 transitions. [2024-11-09 11:14:08,643 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 492 transitions. Word has length 128 [2024-11-09 11:14:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:08,644 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 492 transitions. [2024-11-09 11:14:08,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 85 states have (on average 2.4941176470588236) internal successors, (212), 46 states have internal predecessors, (212), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 492 transitions. [2024-11-09 11:14:08,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-09 11:14:08,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:08,646 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 1, 1, 1, 1, 1] [2024-11-09 11:14:08,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 11:14:08,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:08,847 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:14:08,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:08,847 INFO L85 PathProgramCache]: Analyzing trace with hash 734997364, now seen corresponding path program 3 times [2024-11-09 11:14:08,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:08,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132805014] [2024-11-09 11:14:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:10,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:10,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132805014] [2024-11-09 11:14:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132805014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792186677] [2024-11-09 11:14:10,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:14:10,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:10,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:10,241 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:14:10,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 11:14:10,323 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-09 11:14:10,323 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:10,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-09 11:14:10,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:10,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:12,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792186677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:12,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:12,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 111 [2024-11-09 11:14:12,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243722622] [2024-11-09 11:14:12,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:12,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2024-11-09 11:14:12,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:12,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2024-11-09 11:14:12,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1628, Invalid=10804, Unknown=0, NotChecked=0, Total=12432 [2024-11-09 11:14:12,497 INFO L87 Difference]: Start difference. First operand 484 states and 492 transitions. Second operand has 112 states, 109 states have (on average 2.4954128440366974) internal successors, (272), 58 states have internal predecessors, (272), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:15,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:15,306 INFO L93 Difference]: Finished difference Result 577 states and 591 transitions. [2024-11-09 11:14:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-09 11:14:15,306 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 109 states have (on average 2.4954128440366974) internal successors, (272), 58 states have internal predecessors, (272), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2024-11-09 11:14:15,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:15,308 INFO L225 Difference]: With dead ends: 577 [2024-11-09 11:14:15,308 INFO L226 Difference]: Without dead ends: 576 [2024-11-09 11:14:15,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11009 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5383, Invalid=31289, Unknown=0, NotChecked=0, Total=36672 [2024-11-09 11:14:15,310 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 786 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:15,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 282 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:14:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-09 11:14:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 562. [2024-11-09 11:14:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 468 states have (on average 1.017094017094017) internal successors, (476), 468 states have internal predecessors, (476), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 569 transitions. [2024-11-09 11:14:15,374 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 569 transitions. Word has length 164 [2024-11-09 11:14:15,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:15,374 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 569 transitions. [2024-11-09 11:14:15,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 109 states have (on average 2.4954128440366974) internal successors, (272), 58 states have internal predecessors, (272), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 569 transitions. [2024-11-09 11:14:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-09 11:14:15,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:15,377 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 41, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:15,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 11:14:15,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:15,578 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:14:15,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1178058702, now seen corresponding path program 6 times [2024-11-09 11:14:15,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753402354] [2024-11-09 11:14:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:15,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:18,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:18,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753402354] [2024-11-09 11:14:18,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753402354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:18,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003382985] [2024-11-09 11:14:18,756 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:14:18,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:18,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:18,758 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:14:18,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 11:14:18,899 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2024-11-09 11:14:18,899 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:18,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-09 11:14:18,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:19,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:23,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003382985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:23,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:23,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86, 86] total 171 [2024-11-09 11:14:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365191277] [2024-11-09 11:14:23,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:23,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2024-11-09 11:14:23,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:23,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2024-11-09 11:14:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3786, Invalid=25626, Unknown=0, NotChecked=0, Total=29412 [2024-11-09 11:14:23,344 INFO L87 Difference]: Start difference. First operand 562 states and 569 transitions. Second operand has 172 states, 169 states have (on average 2.497041420118343) internal successors, (422), 88 states have internal predecessors, (422), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:40,409 INFO L93 Difference]: Finished difference Result 1026 states and 1090 transitions. [2024-11-09 11:14:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 378 states. [2024-11-09 11:14:40,410 INFO L78 Accepts]: Start accepts. Automaton has has 172 states, 169 states have (on average 2.497041420118343) internal successors, (422), 88 states have internal predecessors, (422), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2024-11-09 11:14:40,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:40,413 INFO L225 Difference]: With dead ends: 1026 [2024-11-09 11:14:40,413 INFO L226 Difference]: Without dead ends: 1025 [2024-11-09 11:14:40,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 460 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70334 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=39019, Invalid=173963, Unknown=0, NotChecked=0, Total=212982 [2024-11-09 11:14:40,427 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3741 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3741 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:40,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3741 Valid, 169 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 11:14:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2024-11-09 11:14:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1006. [2024-11-09 11:14:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 838 states have (on average 1.0202863961813842) internal successors, (855), 838 states have internal predecessors, (855), 167 states have call successors, (167), 167 states have call predecessors, (167), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1022 transitions. [2024-11-09 11:14:40,591 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1022 transitions. Word has length 254 [2024-11-09 11:14:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:40,592 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1022 transitions. [2024-11-09 11:14:40,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 169 states have (on average 2.497041420118343) internal successors, (422), 88 states have internal predecessors, (422), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1022 transitions. [2024-11-09 11:14:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-09 11:14:40,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:40,596 INFO L215 NwaCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 1, 1, 1, 1, 1] [2024-11-09 11:14:40,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 11:14:40,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:40,797 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:14:40,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash 95073512, now seen corresponding path program 4 times [2024-11-09 11:14:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446839178] [2024-11-09 11:14:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:40,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:46,024 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:46,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:46,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446839178] [2024-11-09 11:14:46,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446839178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:46,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880046964] [2024-11-09 11:14:46,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:14:46,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:46,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:46,026 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:14:46,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 11:14:46,243 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:14:46,243 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:46,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-09 11:14:46,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:46,618 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:53,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880046964] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:53,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:53,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112, 112] total 223 [2024-11-09 11:14:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145424843] [2024-11-09 11:14:53,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:53,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 224 states [2024-11-09 11:14:53,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 224 interpolants. [2024-11-09 11:14:53,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6388, Invalid=43564, Unknown=0, NotChecked=0, Total=49952 [2024-11-09 11:14:53,591 INFO L87 Difference]: Start difference. First operand 1006 states and 1022 transitions. Second operand has 224 states, 221 states have (on average 2.497737556561086) internal successors, (552), 114 states have internal predecessors, (552), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:03,366 INFO L93 Difference]: Finished difference Result 1177 states and 1205 transitions. [2024-11-09 11:15:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2024-11-09 11:15:03,366 INFO L78 Accepts]: Start accepts. Automaton has has 224 states, 221 states have (on average 2.497737556561086) internal successors, (552), 114 states have internal predecessors, (552), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2024-11-09 11:15:03,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:03,371 INFO L225 Difference]: With dead ends: 1177 [2024-11-09 11:15:03,372 INFO L226 Difference]: Without dead ends: 1176 [2024-11-09 11:15:03,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47437 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=21735, Invalid=128421, Unknown=0, NotChecked=0, Total=150156 [2024-11-09 11:15:03,382 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 2275 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:03,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 477 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 11:15:03,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-09 11:15:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1156. [2024-11-09 11:15:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 963 states have (on average 1.0145379023883696) internal successors, (977), 963 states have internal predecessors, (977), 192 states have call successors, (192), 192 states have call predecessors, (192), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1169 transitions. [2024-11-09 11:15:03,552 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1169 transitions. Word has length 332 [2024-11-09 11:15:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:03,553 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1169 transitions. [2024-11-09 11:15:03,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 224 states, 221 states have (on average 2.497737556561086) internal successors, (552), 114 states have internal predecessors, (552), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1169 transitions. [2024-11-09 11:15:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-11-09 11:15:03,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:03,558 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 84, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:03,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 11:15:03,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:03,759 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:15:03,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1663037353, now seen corresponding path program 7 times [2024-11-09 11:15:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770513346] [2024-11-09 11:15:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat