./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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/nla-digbench-scaling/geo1-ll2_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 8266a4ea95b9e4223f8b08ac8ccf14874ced037158e20412a04b64da93889ae0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:45:32,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:45:32,271 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 10:45:32,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:45:32,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:45:32,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:45:32,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:45:32,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:45:32,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:45:32,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:45:32,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:45:32,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:45:32,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:45:32,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:45:32,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:45:32,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:45:32,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:45:32,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 10:45:32,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:45:32,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 10:45:32,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:45:32,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:45:32,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:45:32,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:45:32,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:45:32,320 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:45:32,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:45:32,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 10:45:32,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:45:32,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:45:32,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:45:32,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:45:32,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:45:32,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:45:32,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:45:32,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:45:32,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:45:32,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:45:32,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:45:32,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:45:32,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:45:32,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:45:32,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:45:32,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:45:32,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8266a4ea95b9e4223f8b08ac8ccf14874ced037158e20412a04b64da93889ae0 [2024-11-19 10:45:32,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:45:32,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:45:32,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:45:32,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:45:32,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:45:32,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_valuebound20.c [2024-11-19 10:45:34,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:45:34,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:45:34,212 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_valuebound20.c [2024-11-19 10:45:34,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e731f61b4/631394a0fa2646a2be1a321e6f65b084/FLAG601ef9f7c [2024-11-19 10:45:34,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e731f61b4/631394a0fa2646a2be1a321e6f65b084 [2024-11-19 10:45:34,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:45:34,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:45:34,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:45:34,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:45:34,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:45:34,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343e578d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34, skipping insertion in model container [2024-11-19 10:45:34,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:45:34,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:45:34,468 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:45:34,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:45:34,509 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:45:34,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34 WrapperNode [2024-11-19 10:45:34,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:45:34,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:45:34,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:45:34,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:45:34,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,546 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2024-11-19 10:45:34,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:45:34,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:45:34,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:45:34,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:45:34,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,572 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 10:45:34,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:45:34,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:45:34,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:45:34,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:45:34,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (1/1) ... [2024-11-19 10:45:34,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:45:34,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:34,628 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) [2024-11-19 10:45:34,632 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 [2024-11-19 10:45:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 10:45:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 10:45:34,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 10:45:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 10:45:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:45:34,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:45:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 10:45:34,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 10:45:34,745 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:45:34,750 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:45:35,046 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-19 10:45:35,046 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:45:35,058 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:45:35,059 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 10:45:35,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:45:35 BoogieIcfgContainer [2024-11-19 10:45:35,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:45:35,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:45:35,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:45:35,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:45:35,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:45:34" (1/3) ... [2024-11-19 10:45:35,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b935f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:45:35, skipping insertion in model container [2024-11-19 10:45:35,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:45:34" (2/3) ... [2024-11-19 10:45:35,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b935f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:45:35, skipping insertion in model container [2024-11-19 10:45:35,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:45:35" (3/3) ... [2024-11-19 10:45:35,068 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_valuebound20.c [2024-11-19 10:45:35,098 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:45:35,099 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-19 10:45:35,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:45:35,175 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;@66a5f01d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:45:35,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-19 10:45:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 41 states have (on average 1.7073170731707317) internal successors, (70), 65 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:35,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 10:45:35,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:35,185 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:35,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash -106143586, now seen corresponding path program 1 times [2024-11-19 10:45:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:35,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515951618] [2024-11-19 10:45:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:35,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 10:45:35,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515951618] [2024-11-19 10:45:35,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515951618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:35,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140071115] [2024-11-19 10:45:35,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:35,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:35,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:35,341 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) [2024-11-19 10:45:35,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:45:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:35,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 10:45:35,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 10:45:35,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:35,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140071115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:35,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:35,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 10:45:35,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319257690] [2024-11-19 10:45:35,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:35,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 10:45:35,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 10:45:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:45:35,470 INFO L87 Difference]: Start difference. First operand has 74 states, 41 states have (on average 1.7073170731707317) internal successors, (70), 65 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:45:35,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:35,499 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2024-11-19 10:45:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 10:45:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-19 10:45:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:35,509 INFO L225 Difference]: With dead ends: 144 [2024-11-19 10:45:35,509 INFO L226 Difference]: Without dead ends: 67 [2024-11-19 10:45:35,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:45:35,518 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:35,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:45:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-19 10:45:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-19 10:45:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 59 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 10:45:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2024-11-19 10:45:35,564 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 26 [2024-11-19 10:45:35,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:35,566 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2024-11-19 10:45:35,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:45:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2024-11-19 10:45:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 10:45:35,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:35,570 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:35,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 10:45:35,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 10:45:35,775 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:35,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:35,776 INFO L85 PathProgramCache]: Analyzing trace with hash -150034342, now seen corresponding path program 1 times [2024-11-19 10:45:35,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:35,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573571020] [2024-11-19 10:45:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:35,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:35,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607838360] [2024-11-19 10:45:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:35,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:35,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:35,823 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) [2024-11-19 10:45:35,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:45:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:35,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:45:35,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:35,988 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:35,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:35,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573571020] [2024-11-19 10:45:35,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:35,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607838360] [2024-11-19 10:45:35,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607838360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:35,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:35,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:45:35,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884670066] [2024-11-19 10:45:35,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:35,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:35,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:35,994 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:36,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:36,200 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2024-11-19 10:45:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:45:36,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-19 10:45:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:36,204 INFO L225 Difference]: With dead ends: 95 [2024-11-19 10:45:36,205 INFO L226 Difference]: Without dead ends: 90 [2024-11-19 10:45:36,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:36,207 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:36,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 60 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:45:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-19 10:45:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2024-11-19 10:45:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 77 states have internal predecessors, (90), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2024-11-19 10:45:36,226 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 26 [2024-11-19 10:45:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:36,228 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2024-11-19 10:45:36,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2024-11-19 10:45:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 10:45:36,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:36,229 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:36,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:45:36,429 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,SelfDestructingSolverStorable1 [2024-11-19 10:45:36,430 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:36,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -356097255, now seen corresponding path program 1 times [2024-11-19 10:45:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959161020] [2024-11-19 10:45:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:36,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:36,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73891520] [2024-11-19 10:45:36,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:36,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:36,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:36,464 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) [2024-11-19 10:45:36,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:45:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:36,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:45:36,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:36,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:36,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:36,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959161020] [2024-11-19 10:45:36,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:36,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73891520] [2024-11-19 10:45:36,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73891520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:36,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:36,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:45:36,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35776568] [2024-11-19 10:45:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:36,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:36,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:36,554 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:36,667 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2024-11-19 10:45:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:45:36,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-19 10:45:36,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:36,668 INFO L225 Difference]: With dead ends: 95 [2024-11-19 10:45:36,668 INFO L226 Difference]: Without dead ends: 89 [2024-11-19 10:45:36,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:36,669 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 44 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:36,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 72 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:36,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-19 10:45:36,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-19 10:45:36,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 78 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:36,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2024-11-19 10:45:36,678 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 27 [2024-11-19 10:45:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:36,679 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2024-11-19 10:45:36,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:36,679 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2024-11-19 10:45:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 10:45:36,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:36,680 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:36,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 10:45:36,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:36,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:36,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 75950110, now seen corresponding path program 1 times [2024-11-19 10:45:36,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:36,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597080944] [2024-11-19 10:45:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:36,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954245034] [2024-11-19 10:45:36,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:36,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:36,905 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) [2024-11-19 10:45:36,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:45:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:36,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:45:36,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:36,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:36,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:36,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597080944] [2024-11-19 10:45:36,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:36,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954245034] [2024-11-19 10:45:36,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954245034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:36,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:36,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:45:36,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942399399] [2024-11-19 10:45:36,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:36,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:45:36,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:45:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:45:37,000 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:37,137 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2024-11-19 10:45:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:45:37,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-19 10:45:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:37,139 INFO L225 Difference]: With dead ends: 91 [2024-11-19 10:45:37,139 INFO L226 Difference]: Without dead ends: 89 [2024-11-19 10:45:37,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:45:37,141 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:37,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 75 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-19 10:45:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-19 10:45:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 78 states have internal predecessors, (85), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2024-11-19 10:45:37,149 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 30 [2024-11-19 10:45:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:37,149 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2024-11-19 10:45:37,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2024-11-19 10:45:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:45:37,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:37,152 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:37,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 10:45:37,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:37,357 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:37,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1940513827, now seen corresponding path program 1 times [2024-11-19 10:45:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:37,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698713924] [2024-11-19 10:45:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:37,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 10:45:37,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698713924] [2024-11-19 10:45:37,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698713924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:37,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886960405] [2024-11-19 10:45:37,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:37,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:37,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:37,689 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) [2024-11-19 10:45:37,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:45:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:37,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:45:37,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:37,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:37,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886960405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:37,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:37,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-11-19 10:45:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027831447] [2024-11-19 10:45:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:37,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:45:37,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:37,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:45:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:45:37,793 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:37,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:37,936 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2024-11-19 10:45:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:45:37,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-19 10:45:37,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:37,937 INFO L225 Difference]: With dead ends: 91 [2024-11-19 10:45:37,940 INFO L226 Difference]: Without dead ends: 89 [2024-11-19 10:45:37,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:45:37,941 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:37,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 77 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-19 10:45:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-19 10:45:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 78 states have internal predecessors, (83), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-19 10:45:37,949 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 31 [2024-11-19 10:45:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:37,949 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-19 10:45:37,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:45:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-19 10:45:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 10:45:37,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:37,951 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:37,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 10:45:38,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:38,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:38,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -802581419, now seen corresponding path program 1 times [2024-11-19 10:45:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:38,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408097889] [2024-11-19 10:45:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 10:45:38,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:38,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408097889] [2024-11-19 10:45:38,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408097889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:38,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900918342] [2024-11-19 10:45:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:38,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:38,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:38,268 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) [2024-11-19 10:45:38,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 10:45:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:38,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:45:38,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 10:45:38,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:38,456 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 10:45:38,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900918342] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:45:38,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:45:38,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 10:45:38,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140806788] [2024-11-19 10:45:38,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:38,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:45:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:45:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:45:38,460 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 10:45:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:38,633 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2024-11-19 10:45:38,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:45:38,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 40 [2024-11-19 10:45:38,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:38,635 INFO L225 Difference]: With dead ends: 87 [2024-11-19 10:45:38,635 INFO L226 Difference]: Without dead ends: 86 [2024-11-19 10:45:38,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:38,636 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:38,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 132 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:45:38,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-19 10:45:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-19 10:45:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 77 states have internal predecessors, (81), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2024-11-19 10:45:38,647 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 40 [2024-11-19 10:45:38,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:38,648 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2024-11-19 10:45:38,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 10:45:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2024-11-19 10:45:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 10:45:38,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:38,649 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:38,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 10:45:38,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:38,854 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:38,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash -802581376, now seen corresponding path program 1 times [2024-11-19 10:45:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:38,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204195785] [2024-11-19 10:45:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:38,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:38,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204195785] [2024-11-19 10:45:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204195785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:38,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:38,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:45:38,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544298396] [2024-11-19 10:45:38,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:38,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:45:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:38,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:45:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:45:38,915 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:38,934 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2024-11-19 10:45:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:45:38,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2024-11-19 10:45:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:38,935 INFO L225 Difference]: With dead ends: 88 [2024-11-19 10:45:38,935 INFO L226 Difference]: Without dead ends: 86 [2024-11-19 10:45:38,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:45:38,936 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:38,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:45:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-19 10:45:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-19 10:45:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 77 states have internal predecessors, (79), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-11-19 10:45:38,951 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 40 [2024-11-19 10:45:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:38,951 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-11-19 10:45:38,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-11-19 10:45:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 10:45:38,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:38,953 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:38,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 10:45:38,953 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1105682215, now seen corresponding path program 1 times [2024-11-19 10:45:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:38,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283697145] [2024-11-19 10:45:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:39,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:39,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283697145] [2024-11-19 10:45:39,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283697145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:39,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:45:39,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564274961] [2024-11-19 10:45:39,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:39,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:45:39,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:39,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:45:39,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:39,049 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:39,372 INFO L93 Difference]: Finished difference Result 115 states and 136 transitions. [2024-11-19 10:45:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:45:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-19 10:45:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:39,373 INFO L225 Difference]: With dead ends: 115 [2024-11-19 10:45:39,373 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 10:45:39,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:39,374 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:39,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 100 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:45:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 10:45:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 87. [2024-11-19 10:45:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 78 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2024-11-19 10:45:39,387 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 44 [2024-11-19 10:45:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:39,388 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2024-11-19 10:45:39,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2024-11-19 10:45:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-19 10:45:39,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:39,389 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:39,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 10:45:39,389 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:39,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash 83589803, now seen corresponding path program 1 times [2024-11-19 10:45:39,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:39,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426920993] [2024-11-19 10:45:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426920993] [2024-11-19 10:45:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426920993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:39,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:39,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:45:39,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963501207] [2024-11-19 10:45:39,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:39,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:45:39,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:45:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:39,453 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:39,665 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2024-11-19 10:45:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:45:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-19 10:45:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:39,667 INFO L225 Difference]: With dead ends: 89 [2024-11-19 10:45:39,667 INFO L226 Difference]: Without dead ends: 88 [2024-11-19 10:45:39,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:39,668 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 8 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:39,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 134 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:45:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-19 10:45:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-19 10:45:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.396551724137931) internal successors, (81), 79 states have internal predecessors, (81), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2024-11-19 10:45:39,674 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 45 [2024-11-19 10:45:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:39,674 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2024-11-19 10:45:39,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2024-11-19 10:45:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 10:45:39,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:39,675 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:39,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 10:45:39,676 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:39,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1703683301, now seen corresponding path program 1 times [2024-11-19 10:45:39,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:39,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638686583] [2024-11-19 10:45:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:39,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:39,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638686583] [2024-11-19 10:45:39,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638686583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:39,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:39,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:45:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055371864] [2024-11-19 10:45:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:39,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:39,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:39,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:39,772 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:40,095 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2024-11-19 10:45:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:45:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-19 10:45:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:40,096 INFO L225 Difference]: With dead ends: 88 [2024-11-19 10:45:40,096 INFO L226 Difference]: Without dead ends: 86 [2024-11-19 10:45:40,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:40,097 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:40,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 78 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:45:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-19 10:45:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-19 10:45:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 77 states have internal predecessors, (79), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-11-19 10:45:40,104 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 46 [2024-11-19 10:45:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:40,104 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-11-19 10:45:40,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-11-19 10:45:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 10:45:40,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:40,106 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:40,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 10:45:40,106 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:40,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1537150950, now seen corresponding path program 1 times [2024-11-19 10:45:40,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:40,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542797220] [2024-11-19 10:45:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:40,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:40,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094391978] [2024-11-19 10:45:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:40,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:40,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:40,122 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) [2024-11-19 10:45:40,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 10:45:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:40,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:45:40,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:45:40,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:40,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:40,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542797220] [2024-11-19 10:45:40,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:40,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094391978] [2024-11-19 10:45:40,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094391978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:40,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:40,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-19 10:45:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717334618] [2024-11-19 10:45:40,477 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:40,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:45:40,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:45:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:40,478 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:40,629 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2024-11-19 10:45:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:45:40,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 46 [2024-11-19 10:45:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:40,630 INFO L225 Difference]: With dead ends: 86 [2024-11-19 10:45:40,631 INFO L226 Difference]: Without dead ends: 85 [2024-11-19 10:45:40,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:40,631 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:40,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 121 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-19 10:45:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-19 10:45:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 76 states have internal predecessors, (78), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:40,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2024-11-19 10:45:40,637 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 46 [2024-11-19 10:45:40,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:40,637 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2024-11-19 10:45:40,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2024-11-19 10:45:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-19 10:45:40,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:40,639 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:40,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 10:45:40,839 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 [2024-11-19 10:45:40,840 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:40,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:40,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1274574675, now seen corresponding path program 1 times [2024-11-19 10:45:40,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:40,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521766172] [2024-11-19 10:45:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521766172] [2024-11-19 10:45:40,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521766172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:40,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:40,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:45:40,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596694617] [2024-11-19 10:45:40,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:40,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:40,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:40,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:40,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:40,916 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:41,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:41,196 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2024-11-19 10:45:41,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:45:41,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-19 10:45:41,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:41,197 INFO L225 Difference]: With dead ends: 85 [2024-11-19 10:45:41,197 INFO L226 Difference]: Without dead ends: 76 [2024-11-19 10:45:41,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:41,198 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 16 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:41,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 79 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:45:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-19 10:45:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-19 10:45:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.36) internal successors, (68), 67 states have internal predecessors, (68), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2024-11-19 10:45:41,205 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 47 [2024-11-19 10:45:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:41,205 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2024-11-19 10:45:41,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:45:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2024-11-19 10:45:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-19 10:45:41,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:41,208 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:41,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 10:45:41,210 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:41,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash 407039279, now seen corresponding path program 1 times [2024-11-19 10:45:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:41,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237828540] [2024-11-19 10:45:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:41,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820008430] [2024-11-19 10:45:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:41,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:41,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:41,228 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) [2024-11-19 10:45:41,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 10:45:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:41,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:45:41,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:45:41,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:41,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:41,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237828540] [2024-11-19 10:45:41,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:41,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820008430] [2024-11-19 10:45:41,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820008430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:41,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:41,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-19 10:45:41,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951106458] [2024-11-19 10:45:41,905 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:41,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:45:41,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:45:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:41,906 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:42,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:42,054 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2024-11-19 10:45:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:45:42,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 47 [2024-11-19 10:45:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:42,055 INFO L225 Difference]: With dead ends: 79 [2024-11-19 10:45:42,055 INFO L226 Difference]: Without dead ends: 78 [2024-11-19 10:45:42,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:42,056 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:42,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 112 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-19 10:45:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-19 10:45:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 69 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2024-11-19 10:45:42,061 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 47 [2024-11-19 10:45:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:42,062 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2024-11-19 10:45:42,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2024-11-19 10:45:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 10:45:42,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:42,063 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:42,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 10:45:42,266 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,SelfDestructingSolverStorable12 [2024-11-19 10:45:42,267 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:42,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash 322724689, now seen corresponding path program 1 times [2024-11-19 10:45:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:42,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013334836] [2024-11-19 10:45:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:42,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:42,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412094899] [2024-11-19 10:45:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:42,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:42,279 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) [2024-11-19 10:45:42,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 10:45:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:42,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:45:42,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:45:42,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:42,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013334836] [2024-11-19 10:45:42,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412094899] [2024-11-19 10:45:42,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412094899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:42,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:42,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:45:42,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480755943] [2024-11-19 10:45:42,898 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:42,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:45:42,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:42,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:45:42,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 10:45:42,900 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:43,045 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2024-11-19 10:45:43,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:45:43,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-11-19 10:45:43,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:43,047 INFO L225 Difference]: With dead ends: 78 [2024-11-19 10:45:43,047 INFO L226 Difference]: Without dead ends: 73 [2024-11-19 10:45:43,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 10:45:43,048 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 41 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:43,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 121 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-19 10:45:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-19 10:45:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.25) internal successors, (65), 64 states have internal predecessors, (65), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:45:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2024-11-19 10:45:43,052 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 49 [2024-11-19 10:45:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:43,052 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2024-11-19 10:45:43,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2024-11-19 10:45:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 10:45:43,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:43,056 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:43,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 10:45:43,257 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,SelfDestructingSolverStorable13 [2024-11-19 10:45:43,257 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:43,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1414530818, now seen corresponding path program 1 times [2024-11-19 10:45:43,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:43,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856056814] [2024-11-19 10:45:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:43,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:43,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564203659] [2024-11-19 10:45:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:43,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:43,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:43,269 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) [2024-11-19 10:45:43,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 10:45:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:43,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:45:43,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:45:43,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:43,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:43,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856056814] [2024-11-19 10:45:43,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:43,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564203659] [2024-11-19 10:45:43,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564203659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:43,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:43,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:45:43,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267104016] [2024-11-19 10:45:43,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:43,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:45:43,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:45:43,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 10:45:43,973 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:44,118 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2024-11-19 10:45:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:45:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 50 [2024-11-19 10:45:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:44,119 INFO L225 Difference]: With dead ends: 101 [2024-11-19 10:45:44,119 INFO L226 Difference]: Without dead ends: 96 [2024-11-19 10:45:44,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 10:45:44,120 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:44,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 104 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:44,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-19 10:45:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-19 10:45:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 84 states have internal predecessors, (91), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 10:45:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2024-11-19 10:45:44,125 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 50 [2024-11-19 10:45:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:44,125 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2024-11-19 10:45:44,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 10:45:44,126 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2024-11-19 10:45:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 10:45:44,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:44,126 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:44,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 10:45:44,327 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,SelfDestructingSolverStorable14 [2024-11-19 10:45:44,327 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:44,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1931456619, now seen corresponding path program 1 times [2024-11-19 10:45:44,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:44,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958129604] [2024-11-19 10:45:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:44,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:44,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361569145] [2024-11-19 10:45:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:44,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:44,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:44,340 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) [2024-11-19 10:45:44,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 10:45:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:44,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:45:44,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:44,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:45:44,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958129604] [2024-11-19 10:45:44,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:44,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361569145] [2024-11-19 10:45:44,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361569145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:45:44,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:45:44,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-19 10:45:44,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906012915] [2024-11-19 10:45:44,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:44,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:45:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:45:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:45:44,783 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:45:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:45,451 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2024-11-19 10:45:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:45:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2024-11-19 10:45:45,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:45,453 INFO L225 Difference]: With dead ends: 107 [2024-11-19 10:45:45,453 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 10:45:45,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:45,453 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:45,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 142 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:45:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 10:45:45,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2024-11-19 10:45:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2375) internal successors, (99), 92 states have internal predecessors, (99), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 10:45:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2024-11-19 10:45:45,462 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 53 [2024-11-19 10:45:45,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:45,462 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2024-11-19 10:45:45,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:45:45,462 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2024-11-19 10:45:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-19 10:45:45,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:45,463 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:45,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 10:45:45,667 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,SelfDestructingSolverStorable15 [2024-11-19 10:45:45,668 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:45,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1216523465, now seen corresponding path program 1 times [2024-11-19 10:45:45,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:45,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697424661] [2024-11-19 10:45:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:45,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 10:45:45,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697424661] [2024-11-19 10:45:45,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697424661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:45,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643907489] [2024-11-19 10:45:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:45,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:45,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:45,722 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) [2024-11-19 10:45:45,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 10:45:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:45,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:45:45,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 10:45:45,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:45:45,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643907489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:45,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:45,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-19 10:45:45,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923674641] [2024-11-19 10:45:45,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:45,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:45,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:45,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:45,805 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:45:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:45,821 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2024-11-19 10:45:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:45:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-19 10:45:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:45,822 INFO L225 Difference]: With dead ends: 102 [2024-11-19 10:45:45,822 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 10:45:45,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:45,824 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:45,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 97 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:45:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 10:45:45,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 10:45:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.2125) internal successors, (97), 91 states have internal predecessors, (97), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 10:45:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2024-11-19 10:45:45,831 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 63 [2024-11-19 10:45:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:45,831 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2024-11-19 10:45:45,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:45:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2024-11-19 10:45:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 10:45:45,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:45,832 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:45,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 10:45:46,033 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,SelfDestructingSolverStorable16 [2024-11-19 10:45:46,033 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:46,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:46,034 INFO L85 PathProgramCache]: Analyzing trace with hash 942478322, now seen corresponding path program 1 times [2024-11-19 10:45:46,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:46,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420927762] [2024-11-19 10:45:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:46,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 10:45:46,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420927762] [2024-11-19 10:45:46,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420927762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:46,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798804552] [2024-11-19 10:45:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:46,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:46,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:46,097 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) [2024-11-19 10:45:46,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 10:45:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:46,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:45:46,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 10:45:46,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 10:45:46,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798804552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:45:46,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:45:46,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-19 10:45:46,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003957817] [2024-11-19 10:45:46,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:46,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:45:46,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:45:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:45:46,259 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-19 10:45:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:46,294 INFO L93 Difference]: Finished difference Result 141 states and 153 transitions. [2024-11-19 10:45:46,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:45:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 64 [2024-11-19 10:45:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:46,296 INFO L225 Difference]: With dead ends: 141 [2024-11-19 10:45:46,296 INFO L226 Difference]: Without dead ends: 140 [2024-11-19 10:45:46,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:45:46,297 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 19 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:46,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 189 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:45:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-19 10:45:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 127. [2024-11-19 10:45:46,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.2692307692307692) internal successors, (132), 115 states have internal predecessors, (132), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2024-11-19 10:45:46,305 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 64 [2024-11-19 10:45:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:46,305 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2024-11-19 10:45:46,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-19 10:45:46,305 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2024-11-19 10:45:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 10:45:46,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:46,306 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:46,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 10:45:46,506 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,SelfDestructingSolverStorable17 [2024-11-19 10:45:46,507 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:46,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1131424784, now seen corresponding path program 1 times [2024-11-19 10:45:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237473867] [2024-11-19 10:45:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 10:45:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:46,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237473867] [2024-11-19 10:45:46,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237473867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:46,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:46,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:45:46,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290352845] [2024-11-19 10:45:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:46,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:45:46,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:45:46,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:45:46,565 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:45:46,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:46,769 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2024-11-19 10:45:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:45:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-19 10:45:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:46,770 INFO L225 Difference]: With dead ends: 127 [2024-11-19 10:45:46,770 INFO L226 Difference]: Without dead ends: 126 [2024-11-19 10:45:46,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:45:46,770 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 29 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:46,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 74 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:45:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-19 10:45:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-19 10:45:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 114 states have internal predecessors, (131), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 149 transitions. [2024-11-19 10:45:46,777 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 149 transitions. Word has length 67 [2024-11-19 10:45:46,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:46,778 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 149 transitions. [2024-11-19 10:45:46,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:45:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 149 transitions. [2024-11-19 10:45:46,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 10:45:46,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:46,779 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:46,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 10:45:46,779 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:46,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:46,779 INFO L85 PathProgramCache]: Analyzing trace with hash 714430036, now seen corresponding path program 1 times [2024-11-19 10:45:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:46,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564220295] [2024-11-19 10:45:46,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:46,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 10:45:46,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:46,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564220295] [2024-11-19 10:45:46,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564220295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:45:46,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:45:46,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 10:45:46,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63891328] [2024-11-19 10:45:46,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:46,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:45:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:46,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:45:46,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:45:46,918 INFO L87 Difference]: Start difference. First operand 126 states and 149 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:45:47,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:47,256 INFO L93 Difference]: Finished difference Result 126 states and 149 transitions. [2024-11-19 10:45:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:45:47,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-19 10:45:47,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:47,258 INFO L225 Difference]: With dead ends: 126 [2024-11-19 10:45:47,258 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 10:45:47,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:45:47,259 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:47,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 172 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:45:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 10:45:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-19 10:45:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 102 states have internal predecessors, (116), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2024-11-19 10:45:47,267 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 68 [2024-11-19 10:45:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:47,267 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2024-11-19 10:45:47,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:45:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2024-11-19 10:45:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 10:45:47,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:47,268 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:47,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 10:45:47,268 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:47,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:47,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1054114456, now seen corresponding path program 1 times [2024-11-19 10:45:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:47,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539089130] [2024-11-19 10:45:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:47,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505815702] [2024-11-19 10:45:47,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:47,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:47,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:47,290 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) [2024-11-19 10:45:47,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 10:45:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:47,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 10:45:47,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 10:45:47,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 10:45:49,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:49,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539089130] [2024-11-19 10:45:49,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:49,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505815702] [2024-11-19 10:45:49,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505815702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:45:49,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:45:49,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-11-19 10:45:49,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229959685] [2024-11-19 10:45:49,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:49,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 10:45:49,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:49,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 10:45:49,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 10:45:49,654 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 10:45:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:53,379 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2024-11-19 10:45:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 10:45:53,379 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Word has length 70 [2024-11-19 10:45:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:53,380 INFO L225 Difference]: With dead ends: 122 [2024-11-19 10:45:53,380 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 10:45:53,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-19 10:45:53,381 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 156 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:53,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 166 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 10:45:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 10:45:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 10:45:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.2) internal successors, (120), 108 states have internal predecessors, (120), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2024-11-19 10:45:53,389 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 70 [2024-11-19 10:45:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:53,389 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2024-11-19 10:45:53,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 10:45:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2024-11-19 10:45:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 10:45:53,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:53,390 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:53,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 10:45:53,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:53,591 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:53,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1677062919, now seen corresponding path program 2 times [2024-11-19 10:45:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898904513] [2024-11-19 10:45:53,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:45:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:53,604 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:45:53,604 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:45:53,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931663093] [2024-11-19 10:45:53,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:45:53,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:53,607 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) [2024-11-19 10:45:53,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 10:45:53,658 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:45:53,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:45:53,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 10:45:53,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 10:45:53,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:54,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898904513] [2024-11-19 10:45:54,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931663093] [2024-11-19 10:45:54,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931663093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:54,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:54,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-19 10:45:54,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188197926] [2024-11-19 10:45:54,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:45:54,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 10:45:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 10:45:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:45:54,371 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 10:45:54,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:54,526 INFO L93 Difference]: Finished difference Result 123 states and 138 transitions. [2024-11-19 10:45:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:45:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 73 [2024-11-19 10:45:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:54,528 INFO L225 Difference]: With dead ends: 123 [2024-11-19 10:45:54,528 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 10:45:54,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:45:54,528 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 53 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:54,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 103 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:45:54,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 10:45:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-19 10:45:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.17) internal successors, (117), 108 states have internal predecessors, (117), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2024-11-19 10:45:54,538 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 73 [2024-11-19 10:45:54,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:54,538 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2024-11-19 10:45:54,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 10:45:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2024-11-19 10:45:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 10:45:54,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:54,540 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:54,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 10:45:54,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:54,741 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:54,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1039259069, now seen corresponding path program 1 times [2024-11-19 10:45:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:54,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995815132] [2024-11-19 10:45:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:54,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861494879] [2024-11-19 10:45:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:54,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:54,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:54,756 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) [2024-11-19 10:45:54,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 10:45:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:54,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:45:54,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 10:45:54,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:45:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 10:45:55,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:45:55,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995815132] [2024-11-19 10:45:55,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:45:55,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861494879] [2024-11-19 10:45:55,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861494879] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 10:45:55,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:45:55,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-19 10:45:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094048205] [2024-11-19 10:45:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:45:55,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:45:55,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:45:55,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:45:55,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:45:55,314 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:45:55,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:45:55,822 INFO L93 Difference]: Finished difference Result 120 states and 135 transitions. [2024-11-19 10:45:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:45:55,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2024-11-19 10:45:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:45:55,823 INFO L225 Difference]: With dead ends: 120 [2024-11-19 10:45:55,824 INFO L226 Difference]: Without dead ends: 119 [2024-11-19 10:45:55,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-19 10:45:55,824 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 10:45:55,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 10:45:55,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-19 10:45:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-19 10:45:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 100 states have (on average 1.14) internal successors, (114), 107 states have internal predecessors, (114), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:45:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2024-11-19 10:45:55,832 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 77 [2024-11-19 10:45:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:45:55,832 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2024-11-19 10:45:55,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:45:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2024-11-19 10:45:55,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 10:45:55,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:45:55,833 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:45:55,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 10:45:56,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 10:45:56,038 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:45:56,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:45:56,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1999412705, now seen corresponding path program 1 times [2024-11-19 10:45:56,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:45:56,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493071877] [2024-11-19 10:45:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:56,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:45:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:45:56,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389405827] [2024-11-19 10:45:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:45:56,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:45:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:45:56,053 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) [2024-11-19 10:45:56,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 10:45:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:45:56,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 10:45:56,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:45:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 10:45:56,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-19 10:46:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:14,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493071877] [2024-11-19 10:46:14,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:14,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389405827] [2024-11-19 10:46:14,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389405827] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:14,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:14,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-19 10:46:14,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208625465] [2024-11-19 10:46:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:46:14,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:46:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:46:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=142, Unknown=2, NotChecked=0, Total=182 [2024-11-19 10:46:14,443 INFO L87 Difference]: Start difference. First operand 119 states and 132 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:46:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:16,516 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2024-11-19 10:46:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:46:16,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 79 [2024-11-19 10:46:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:16,518 INFO L225 Difference]: With dead ends: 119 [2024-11-19 10:46:16,518 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 10:46:16,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=53, Invalid=185, Unknown=2, NotChecked=0, Total=240 [2024-11-19 10:46:16,518 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 46 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:16,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 114 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:46:16,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 10:46:16,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 10:46:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 100 states have (on average 1.11) internal successors, (111), 106 states have internal predecessors, (111), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:46:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2024-11-19 10:46:16,527 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 79 [2024-11-19 10:46:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:16,527 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2024-11-19 10:46:16,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:46:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2024-11-19 10:46:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-19 10:46:16,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:16,529 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:16,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 10:46:16,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:16,734 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:16,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1885028642, now seen corresponding path program 3 times [2024-11-19 10:46:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506940055] [2024-11-19 10:46:16,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:46:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:16,763 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 10:46:16,763 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:46:16,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239993584] [2024-11-19 10:46:16,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:46:16,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:16,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:16,766 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) [2024-11-19 10:46:16,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 10:46:17,079 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 10:46:17,079 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:17,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:46:17,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 10:46:17,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:18,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506940055] [2024-11-19 10:46:18,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239993584] [2024-11-19 10:46:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239993584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:18,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-19 10:46:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413542800] [2024-11-19 10:46:18,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:46:18,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 10:46:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 10:46:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:46:18,235 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 10:46:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:18,461 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2024-11-19 10:46:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:46:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) Word has length 96 [2024-11-19 10:46:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:18,462 INFO L225 Difference]: With dead ends: 121 [2024-11-19 10:46:18,463 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 10:46:18,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:46:18,463 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 46 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:18,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 88 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:46:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 10:46:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 10:46:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 100 states have (on average 1.08) internal successors, (108), 106 states have internal predecessors, (108), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:46:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2024-11-19 10:46:18,472 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 96 [2024-11-19 10:46:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:18,472 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2024-11-19 10:46:18,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 10:46:18,473 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2024-11-19 10:46:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-19 10:46:18,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:18,474 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:18,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-19 10:46:18,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:18,679 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:18,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash 190931317, now seen corresponding path program 2 times [2024-11-19 10:46:18,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:18,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698642286] [2024-11-19 10:46:18,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:18,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:18,693 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:18,694 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:46:18,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911142912] [2024-11-19 10:46:18,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:18,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:18,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:18,696 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) [2024-11-19 10:46:18,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 10:46:18,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:18,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:18,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 10:46:18,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 10:46:18,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-19 10:46:19,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:19,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698642286] [2024-11-19 10:46:19,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:19,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911142912] [2024-11-19 10:46:19,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911142912] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:19,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:19,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-19 10:46:19,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523971531] [2024-11-19 10:46:19,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:46:19,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:46:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:19,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:46:19,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 10:46:19,259 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:46:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:19,699 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2024-11-19 10:46:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:46:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 99 [2024-11-19 10:46:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:19,700 INFO L225 Difference]: With dead ends: 118 [2024-11-19 10:46:19,700 INFO L226 Difference]: Without dead ends: 117 [2024-11-19 10:46:19,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 10:46:19,701 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:19,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 117 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:46:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-19 10:46:19,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-19 10:46:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 100 states have (on average 1.06) internal successors, (106), 105 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 10:46:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2024-11-19 10:46:19,708 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 99 [2024-11-19 10:46:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:19,709 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2024-11-19 10:46:19,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 10:46:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2024-11-19 10:46:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 10:46:19,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:19,710 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:19,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 10:46:19,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:19,910 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:19,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash -30445863, now seen corresponding path program 4 times [2024-11-19 10:46:19,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:19,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016640720] [2024-11-19 10:46:19,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:46:19,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:19,942 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:46:19,942 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:46:19,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512057234] [2024-11-19 10:46:19,943 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:46:19,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:19,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:19,945 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:46:19,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 10:46:20,172 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:46:20,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:20,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 10:46:20,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 9 proven. 135 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 10:46:20,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:22,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:22,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016640720] [2024-11-19 10:46:22,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:22,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512057234] [2024-11-19 10:46:22,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512057234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:22,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:22,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-19 10:46:22,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29073185] [2024-11-19 10:46:22,031 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:46:22,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 10:46:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:22,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 10:46:22,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-19 10:46:22,032 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 10:46:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:28,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:28,955 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2024-11-19 10:46:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 10:46:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 119 [2024-11-19 10:46:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:28,956 INFO L225 Difference]: With dead ends: 140 [2024-11-19 10:46:28,956 INFO L226 Difference]: Without dead ends: 137 [2024-11-19 10:46:28,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2024-11-19 10:46:28,957 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 79 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:28,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 202 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-19 10:46:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-19 10:46:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-19 10:46:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 116 states have (on average 1.0689655172413792) internal successors, (124), 121 states have internal predecessors, (124), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:46:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2024-11-19 10:46:28,969 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 119 [2024-11-19 10:46:28,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:28,969 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2024-11-19 10:46:28,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 10:46:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2024-11-19 10:46:28,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 10:46:28,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:28,970 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:28,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-19 10:46:29,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 10:46:29,172 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:29,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:29,172 INFO L85 PathProgramCache]: Analyzing trace with hash 806298427, now seen corresponding path program 1 times [2024-11-19 10:46:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:29,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133161464] [2024-11-19 10:46:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:46:29,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:46:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138671380] [2024-11-19 10:46:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:46:29,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:29,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:29,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:46:29,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 10:46:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:46:29,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:46:29,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-19 10:46:29,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133161464] [2024-11-19 10:46:30,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138671380] [2024-11-19 10:46:30,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138671380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:30,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:30,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:46:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997261737] [2024-11-19 10:46:30,393 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:46:30,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:46:30,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:46:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:46:30,394 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:46:30,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:30,547 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2024-11-19 10:46:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:46:30,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 121 [2024-11-19 10:46:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:30,548 INFO L225 Difference]: With dead ends: 134 [2024-11-19 10:46:30,548 INFO L226 Difference]: Without dead ends: 132 [2024-11-19 10:46:30,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:46:30,549 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:30,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 72 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:46:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-19 10:46:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-19 10:46:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.043103448275862) internal successors, (121), 119 states have internal predecessors, (121), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:46:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 141 transitions. [2024-11-19 10:46:30,572 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 141 transitions. Word has length 121 [2024-11-19 10:46:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:30,573 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 141 transitions. [2024-11-19 10:46:30,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 10:46:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2024-11-19 10:46:30,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 10:46:30,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:30,574 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:30,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-19 10:46:30,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 10:46:30,775 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:30,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1859286921, now seen corresponding path program 2 times [2024-11-19 10:46:30,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:30,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4695089] [2024-11-19 10:46:30,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:30,785 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:30,786 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-19 10:46:30,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:30,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4695089] [2024-11-19 10:46:30,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4695089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:30,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539329760] [2024-11-19 10:46:30,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:30,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:30,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:30,845 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:46:30,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 10:46:30,903 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:30,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:30,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:46:30,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-19 10:46:31,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-19 10:46:31,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539329760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:46:31,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:46:31,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-19 10:46:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771622892] [2024-11-19 10:46:31,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:46:31,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:46:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:46:31,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:46:31,140 INFO L87 Difference]: Start difference. First operand 132 states and 141 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 10:46:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:46:31,161 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2024-11-19 10:46:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:46:31,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 133 [2024-11-19 10:46:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:46:31,162 INFO L225 Difference]: With dead ends: 132 [2024-11-19 10:46:31,162 INFO L226 Difference]: Without dead ends: 131 [2024-11-19 10:46:31,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:46:31,163 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:46:31,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:46:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-19 10:46:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-19 10:46:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 116 states have (on average 1.0258620689655173) internal successors, (119), 118 states have internal predecessors, (119), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:46:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2024-11-19 10:46:31,175 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 133 [2024-11-19 10:46:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:46:31,176 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2024-11-19 10:46:31,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 10:46:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2024-11-19 10:46:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 10:46:31,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:46:31,177 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:46:31,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-19 10:46:31,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 10:46:31,378 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:46:31,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:46:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1651546351, now seen corresponding path program 2 times [2024-11-19 10:46:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:46:31,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367347831] [2024-11-19 10:46:31,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:46:31,394 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:31,394 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:46:31,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276851322] [2024-11-19 10:46:31,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:46:31,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:46:31,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:46:31,397 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:46:31,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 10:46:31,505 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:46:31,505 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:46:31,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 10:46:31,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:46:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 18 proven. 199 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 10:46:32,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:46:35,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:46:35,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367347831] [2024-11-19 10:46:35,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:46:35,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276851322] [2024-11-19 10:46:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276851322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:46:35,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:46:35,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-19 10:46:35,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241179946] [2024-11-19 10:46:35,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:46:35,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 10:46:35,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:46:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 10:46:35,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-19 10:46:35,072 INFO L87 Difference]: Start difference. First operand 131 states and 139 transitions. Second operand has 18 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-19 10:46:39,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:45,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:47,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:50,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:53,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:56,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:46:58,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:47:03,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:47:07,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-19 10:47:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:47:07,741 INFO L93 Difference]: Finished difference Result 134 states and 142 transitions. [2024-11-19 10:47:07,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 10:47:07,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) Word has length 139 [2024-11-19 10:47:07,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:47:07,743 INFO L225 Difference]: With dead ends: 134 [2024-11-19 10:47:07,743 INFO L226 Difference]: Without dead ends: 133 [2024-11-19 10:47:07,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-19 10:47:07,744 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 41 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:47:07,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 209 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1214 Invalid, 3 Unknown, 0 Unchecked, 32.2s Time] [2024-11-19 10:47:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-19 10:47:07,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-19 10:47:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 118 states have (on average 1.0254237288135593) internal successors, (121), 120 states have internal predecessors, (121), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:47:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 141 transitions. [2024-11-19 10:47:07,759 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 141 transitions. Word has length 139 [2024-11-19 10:47:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:47:07,759 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 141 transitions. [2024-11-19 10:47:07,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.235294117647059) internal successors, (106), 17 states have internal predecessors, (106), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-19 10:47:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 141 transitions. [2024-11-19 10:47:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 10:47:07,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:47:07,761 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:47:07,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-19 10:47:07,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:47:07,965 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-19 10:47:07,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:47:07,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1927953598, now seen corresponding path program 5 times [2024-11-19 10:47:07,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:47:07,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056610283] [2024-11-19 10:47:07,965 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:47:07,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:47:07,991 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-19 10:47:07,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:47:07,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567315281] [2024-11-19 10:47:07,993 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:47:07,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:47:07,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:47:07,996 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:47:07,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-19 10:47:08,090 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-19 10:47:08,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:47:08,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:47:08,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:47:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 10:47:09,756 INFO L311 TraceCheckSpWp]: Computing backward predicates...